Scaling Analysis in Modeling Transport and Reaction Processes || Index
Transcript of Scaling Analysis in Modeling Transport and Reaction Processes || Index
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INDEX
Absorption, see Gas absorptionAdsorption, see Pressure-swing adsorptionAdsorption time scale, see Time scale,
adsorptionAnnulus:
conductive heat transfer in, 226flow in hydraulic ram, 76flow in rotating, 88flow in tube with porous, 133flow with fluid injection and withdrawal,
139mass transfer between fixed and
rotating, 352Approximation:
Boussinesq for free convection, 183constant density, 56constant diffusivity, 277, 349, 351constant thermal conductivity, 246, 250constant thermal diffusivity, 246constant viscosity, 180creeping flow, 26, 30, 50, 66, 75,diffusional domain of slow reaction
regime, 381fast reaction regime, 372film theory for heat transfer, 153film theory for mass transfer, 253, 357film theory for mass transfer with
chemical reaction, 368, 406fully developed flow, 62hydrodynamic boundary layer, 32, 79,
84, 119, 120, 121incompressible flow, 56, 135inner domain of instantaneous reaction
regime, 405
Scaling Analysis in Modeling Transport and Reaction Processes: A Systematic Approachto Model Building and the Art of Approximation, By William B. KrantzCopyright 2007 John Wiley & Sons, Inc.
instantaneous reaction regime, 373intermediate domain of slow reaction
regime, 403intermediate reaction regime, 371kinetic domain of slow reaction regime,
380large Damkohler number, 325, 340,large Reynolds number, 32, 79, 84, 119,
120, 121large solutal Biot number, 297large solutal Grashof number, 281, 354large solutal Peclet number, 269, 338large thermal Biot number, 209large thermal Grashof number, 218, 247large thermal Peclet number, 167, 206,
236, 237, 238, 239, 240, 241large Thiele modulus, 261, 339lubrication flow, 26, 45, 72, 76, 101,
113, 114, 115, 116, 127, 141lumped capacitance, 163macroscale element, 362, 377microscale element, 362negligible curvature in fluid flow, 45,
52, 76, 94, 123, 127, 128, 134, 139negligible curvature in heat transfer,
209, 229negligible curvature in mass transfer,
308, 328, 338, 340, 342, 343, 344,346, 352
negligible end effects in fluid flow, 43,88, 133
negligible side-wall effects in fluid flow,43, 52, 116
negligible viscous dissipation, 202, 235
515
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516 INDEX
Approximation: (continued )penetration theory for heat transfer, 153penetration theory for mass transfer,
259, 336penetration theory for mass transfer with
chemical reaction, 369, 400physical absorption, 379plug flow reactor, 266quasi-parallel flow, 45, 94, 126, 128,
143quasi-stationary-hypothesis, 380, 402quasi-steady-state fluid flow, 38, 45, 72,
115, 117, 122, 142quasi-steady-state heat transfer, 173,
242, 243, 244quasi-steady-state mass transfer, 273,
297, 303, 308, 316, 321, 340, 342,344, 346, 347
reaction boundary layer, 261, 328, 339,340
slow reaction regime, 371small Damkohler number, 266small Reynolds number, see
Approximation, creeping flowsmall solutal Biot number, 297small solutal Peclet number, 261, 340small thermal Biot number, 159, 196,
231, 232, 233small thermal Peclet number, 163, 202small Thiele modulus, 328solutal boundary layer, 259, 269, 277,
281, 308, 312, 325, 337, 338, 344,345, 346, 347, 349, 350, 351, 354
steady-state fluid flow, 92, 116steady-state heat transfer, 153steady-state mass transfer, 253, 364Stoke’s flow, see Approximation,
creeping flowsurface domain of instantaneous reaction
regime, 405Taylor dispersion, 303thermal boundary layer, 153, 167, 173,
206, 218, 236, 237, 238, 239, 240,241, 247
uniformly accessible surface for masstransfer, 79, 312
Auxiliary condition:free surface flows, 47, 68, 96, 102, 103,
moving boundary in heat transfer, 174,213, 242, 243, 246, 442
moving boundary in mass transfer, 275,295, 299, 309, 323, 337, 342, 344,345, 346, 347, 348, 351, 442
moving front for instantaneous reaction,374
Axial dispersion time scale, see Timescale, axial dispersion
Big oh of one, 2, 19, 145, 252Biot number, see Dimensionless
groups, Biot number for heat transfer,Biot number for mass transfer
Boundary condition:free surface, 46, 95, 127, 128, 129instantaneous reaction front, 373moving boundary in heat transfer, 173,
211, 242, 243, 244moving boundary in mass transfer, 275,
295, 299, 309, 337, 342, 344, 345,346, 347, 348, 351
moving front for instantaneous reaction,374
normal stress, 46, 96, 127, 128, 129tangential stress, 46, 95, 127, 128, 129
Boundary layer, see Boundary-layer flowBoundary-layer flow, 32, 79, 84, 119,
120, 121. See also Region ofinfluence
Brinkman term, see Porous mediaBuckingham Pi theorem, see Pi theorem
Change of order one, see Big “oh” of one;Little “oh” of one
Channel, gravity-driven flow withsidewalls, 43
Chemical reaction:heterogeneous, 266, 325, 340, 346, 347,
358homogeneous, 261, 308, 328, 339, 340,
342, 343, 344, 349, 351, 364, 371,372, 373, 380, 381, 390, 394, 401,403, 404, 405, 406, 407, 408, 409,411
See also Mass transfer with chemicalreaction
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INDEX 517
Chemical reactor:continuous stirred tank, 390, 408, 409fluid-wall aerosol flow, 448, 475, 476,
477, 478, 479hollow fiber membrane, 328, 349laminar flow with heterogeneous
reaction, 266, 325, 340laminar flow with homogeneous
reaction, 261, 339packed column, 394, 410, 411photocatalytic, 358plug flow, 266
Chemical reactor design:continuous stirred tank, 390, 408, 409diffusional domain of slow reaction
regime, 384fast reaction regime, 385fluid-wall aerosol flow, 448, 475, 476,
477, 478, 479inner domain of instantaneous reaction
regime, 386intermediate reaction regime, 384kinetic domain of slow reaction regime,
383packed column, 394, 410, 411surface domain of instantaneous reaction
regime, 386Compressible flow, 56, 135Condensation, 127Conduction, see Heat transferConduction time scale, see Time scale,
conductionConservation of energy equation, see
Thermal energy equationConstitutive equation, 481, 483, 489, 491,
492, 496, 497, 498Contact time scale, see Time scale, contact
timeContinuity equation:
cylindrical coordinates, 487generalized notation, 482rectangular coordinates, 486spherical coordinates, 487
Continuous stirred tank reactor, seeChemical reactor, continuous stirredtank
Correlating experimental or numericaldata, 2, 415, 424, 436, 438, 448, 460
Creeping flow, see Approximation,creeping flow
Crystallization, 345Curtain coating, 128,143Curvature effects, see Approximation,
negligible curvatureCylinder:
falling needle viscometer, 117free convection mass transfer adjacent
to vertical, 281, 354heat conduction with
temperature-dependent thermaldiffusivity, 246
heat transfer for hot wire anemometer,249
heat transfer with resistance heating,200, 223
mass transfer in dissolutionof, 343, 344
mass transfer to film flow down vertical,338
steady-state heat conduction withexternal convection, 230
two-dimensional steady-state heatconduction, 225
unsteady-state axial heat conduction,228
unsteady-state heat conduction withexternal convection, 233
unsteady-state radial heat conduction,228
Cylindrical coordinates:continuity equation, 487equation of motion for porous media,
494equations of motion, 490species continuity equation, 500thermal energy equation, 497
Cylindrical tube:compressible gas flow in, 56, 135constant injection through in flow
between parallel disks, 114constant injection through in flow
between spinning parallel disks, 115countercurrent liquid-gas flow in, 123entry region flow with porous annulus,
134entry region flow, 121
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518 INDEX
Cylindrical tube: (continued )falling head method for determining
permeability, 105falling needle viscometer, 117flow in hollow fiber, 101flow through porous media in, 52gravity- and pressure-driven flow in
vertical, 111impulsively initiated flow in, 92, 142mass transfer in membrane-lung
oxygenator, 287, 415mass transfer of evaporating liquid
from, 273, 337mass transfer via Taylor dispersion in,
303mass transfer with photocatalytic
reaction in, 358mass transfer with reaction for flow in,
266, 325, 340non-constant injection through for flow
between parallel disks, 115pressure-driven flow in oscillating, 122,
142pressure-driven flow in rotating, 112radial flow from porous, 133
d’Alembert’s paradox, 35Damkohler number, see Dimensionless
groups, Damkohler numberDarcy flow, see Porous media flow,
Darcy’s lawDerivative scaling, 9, 21
compressible gas flow in cylindricaltube, 59, 60, 69, 135
convective mass transfer betweenparallel membranes, 339
curtain-coating flow, 130dissolution of a spherical capsule, 308draining of liquid film, 47, 48, 68evaporation of a liquid, 273evaporative casting of polymer film, 297evaporative cooling of a liquid film, 211field-flow fractionation, 316flow between moving and stationary
plates, 110, 111flow between parallel permeable
membranes with homogeneousreaction, 339
fluid-wall aerosol flow reactor, 448
freezing of water-saturated soil overlaidby snow, 244
heat transfer with phase change, 173hollow fiber membrane reactor, 328jet flow, 96, 97, 126membrane lung oxygenator, 415membrane permeation cell, 321rusting of metal surface, 347steady-state conduction in cylinder, 230steady-state conduction in rectangular
fin, 196thermal casting of membrane, 438
Developing flow:between approaching parallel circular
plates, 72between closed-end parallel plate
membranes, 141between converging flat plates, 26, 113between diverging flat plates, 113between parallel disks with constant
radial injection, 114between parallel disks with
time-dependent radial injection, 115between permeable and impermeable
parallel flat plates, 137between spinning parallel disks with
constant radial injection, 115boundary layer over flat plate with
blowing, 120boundary layer over flat plate with
suction, 120boundary layer over flat plate, 32, 119curtain coating, 128, 143diverging nozzle, 114entry region between parallel
plates, 84entry region in a tube with porous
annulus, 134entry region in cylindrical tube, 121field-flow fractionation, 136gravity-driven draining film down
vertical wall, 45gravity-driven free surface film flow
with condensation, 127gravity-driven free surface of film over
horizontal filter, 127hydraulic ram, 116liquid jet, 94, 126permeable hollow fiber membrane, 101
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INDEX 519
permeable parallel membranes, 143pressure-driven compressible in
cylindrical tube, 56, 135Diffusion, see Mass transferDiffusion time scale, see Time scale,
diffusionDimensional analysis in fluid flow:
around sphere falling at terminalvelocity, 62, 142
between permeable membranes, 143curtain-coating, 143falling head method for determining
permeability, 105hollow fiber membrane, 144oscillating cylindrical tube, 142tube with impulsively applied pressure,
142Dimensional analysis in heat transfer:
cooking a turkey, 187home freezer characterization, 250hot wire anemometer performance, 249resistance heating in electrical wire, 223slab with heat generation, 248sphere with temperature-dependent
thermal conductivity, 250steady-state convective from sphere, 248
Dimensional analysis in mass transfer:convective from sphere, 355evaporating liquid, 357film theory, 357membrane-lung oxygenator, 287, 415,
468pressure-swing adsorption, 424, 471spherical red blood cell, 332tubular photocatalytic reactor, 358
Dimensional analysis in mass transfer withchemical reaction,
fluid-wall aerosol flow reactor, 448, 475,476, 477, 478, 479
Dimensional constants, 13Dimensionless groups:
Biot number for heat transfer, 162, 513Biot number for mass transfer, 302, 513Damkohler number, 268, 513Fourier number for heat transfer, 155,
513Fourier number for mass transfer, 258,
513Froude number, 30, 513
Graetz number, 292, 513Grashof number for heat transfer, 221,
513Grashof number for mass transfer, 285,
513Lewis number, 445, 513Mach number, 61, 513Nusselt number for heat transfer, 159,
513Nusselt number for mass transfer, 292Peclet number for heat transfer, 166, 513Peclet number for mass transfer, 263,
513Prandtl number, 166, 513Rayleigh number, 184, 221, 513Reynolds number, 30, 513Schmidt number, 263, 513Sherwood number, 292, 514Thiele modulus, 263, 514
Disk:mass transfer from uniformly accessible
rotating, 312oscillating viscometer, 117rotating flow, 79rotating viscometer, 116
Dissipation of energy, see Viscousdissipation
Dissolution:cylindrical capsule, 343, 344spherical capsule, 308, 342
Drainage of liquid:falling head method for determining
permeability, 105unsteady down vertical wall, 45
Dynamic pressure, 63, 219, 283
End effects:fluid flow, 43, 68, 77, 88, 118, 133heat transfer, 146, 224, 225, 226mass transfer, 343
Energy dissipation, see Viscousdissipation; Heat transfer
Energy equation, see Thermal energyequation
Entrance effects:fluid flow, 84, 121, 134heat transfer, 234, 236, 247mass transfer, 340
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520 INDEX
Entrance length, see Entrance effectsEntropy production, 126Equation of continuity, see Continuity
equationEquation of continuity for a binary
mixture:cylindrical coordinates, 500generalized notation, 484rectangular coordinates, 499spherical coordinates, 502
Equation of energy, see Thermal energyequation
Equations of motion:cylindrical coordinates, 490generalized notation, 482rectangular coordinates, 489spherical coordinates, 492
Equations of motion for porous media:cylindrical coordinates, 494generalized notation, 483rectangular coordinates, 494spherical coordinates, 495
Error estimate in scaling, see Scalinganalysis, estimated error
Evaporation:casting of polymer film, 297, 350cooling of stationary liquid film, 211,
242free convection mass transfer from
horizontal liquid layer, 357liquid in cylindrical tube, 273, 337polymeric membrane and film casting,
297, 350Example problems:
fluid dynamics, 70heat transfer, 196mass transfer, 297
Falling film, see Film flowFalling head method, 105Falling needle viscometer, see Viscometer,
falling needleFick’s law, 314, 342, 353, 356, 358, 484,
499, 500, 501, 502, 503Field-flow fractionation, 136, 316Film flow:
countercurrent liquid-gas in cylindricaltube, 123
curtain coating, 128, 143fully developed falling film in presence
of viscous gas phase, 70gravity-driven draining film down a
vertical wall, 45gravity-driven free surface film flow
with condensation, 127gravity-driven free surface of film over
horizontal filter, 127gravity-driven in channel with side
walls, 43gravity-driven liquid film over porous
media, 99, 133mass transfer to gravity-driven down
vertical cylinder, 338mass transfer to gravity-driven down
vertical plate, 269, 338Film theory, see Approximation, film
theory for heat transfer;Approximation, film theory for masstransfer
Filter, 127Flat plate:
boundary layer flow over, 32, 119boundary-layer flow over with blowing,
120boundary-layer flow over with suction,
120flow down with condensation, 127flow over filter, 127free convection heat transfer adjacent to,
218, 247free convection mass transfer adjacent
to, 354gravity-driven flow down in presence of
viscous gas, 70gravity-driven flow over with side walls,
43heat transfer to falling film flow down,
206, 236, 237mass transfer to falling film flow down,
269, 338porous media flow bounded by, 131thermal boundary layer in flow over
with suction, 241thermal boundary layer in flow over,
167, 236, 238, 239, 240Flat plates:
flow between converging, 26
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INDEX 521
flow between diverging, 113flow between parallel membrane, 143flow between parallel stationary and
moving, 20, 110, 111flow between stationary and oscillating,
38flow between with fluid injection and
withdrawal, 136flow in entry region between parallel, 84flow in porous media between parallel,
132flow of stratified liquid layers between,
125heat transfer in flow between with
entrance effects, 234heat transfer in flow between with
permeable walls, 202heat transfer in flow between with
temperature-dependent viscosity, 180heat transfer in flow between with
viscous dissipation, 163heat transfer in laminar flow between,
235heat transfer in thermal boundary layer,
236mass transfer with field-flow
fractionation between parallelmembrane, 316
mass transfer with reaction in flowbetween parallel membranes, 261, 339
Fluid dynamics, see Fluid flowFluid flow:
annulus with injection and withdrawal,139
axial in a rotating tube, 112between approaching parallel circular
plates, 72between converging flat plates, 26between cylinder and piston in hydraulic
ram, 76between oscillating and stationary
parallel circular plates, 38between diverging flat plates, 113between parallel disks with constant
radial injection, 114between parallel disks with
time-dependent radial injection, 115between parallel membranes, 143
between permeable and impermeableparallel flat plates, 137
between spinning parallel disks withconstant radial injection, 115
boundary layer over a flat plate, 32, 119boundary-layer over flat plate with
blowing, 120boundary-layer over flat plate with
suction, 120closed-end parallel plate membranes,
141countercurrent liquid-gas in cylindrical
tube, 123curtain coating, 128, 143diverging nozzle, 114entry region between parallel plates, 84entry region for cylindrical tube, 121entry region in a tube with porous
annulus, 134falling needle viscometer, 117field-flow fractionation, 136fully developed falling film in presence
of viscous gas phase, 70gravity and pressure-driven in vertical
tube, 111gravity-driven cylindrical jet, 94gravity-driven draining film down a
vertical wall, 45gravity-driven free surface film flow
with condensation, 127gravity-driven free surface of film over
horizontal filter, 127gravity-driven in channel with side
walls, 43gravity-driven liquid film over porous
media, 99, 133hydraulic ram, 76, 116liquid jet, 94, 126oscillating disk viscometer, 117over falling sphere, 62, 142permeable hollow fiber membrane, 101,
144porous media bounded by flat plate, 131porous media bounded by parallel flat
plates, 132porous media in cylindrical tube, 52pressure driven in oscillating cylindrical
tube, 122
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522 INDEX
Fluid flow: (continued )pressure-driven between moving and
stationary parallel plates, 20pressure-driven compressible in
cylindrical tube, 56, 135pressure-driven of two stratified liquid
layers, 125radial from porous cylindrical tube, 133rotating disk viscometer, 116rotating disk, 79rotating in annulus with end effects, 88tube with impulsively applied pressure,
92, 142Fluid particle, 480Fluid-wall aerosol flow reactor, see
Chemical reactor, fluid-wall aerosolflow
Force on a fluid particle, 480Forgiving nature of scaling, 12
in fluid flow, 25, 31, 49, 59, 96, 126,133, 136
in heat transfer, 173, 177, 195, 456,464, 466
in mass transfer, 329, 349Fourier number, see Dimensionless groups,
Fourier number for heat transfer,Fourier number for mass transfer
Fractional conversion, 449, 460, 462, 463,478, 479
Free convection:heat transfer, 183, 218, 247,mass transfer, 281, 354, 357
Free surface flow:curtain coating, 128cylindrical jet, 94down plate with condensation, 127gravity-driven down a vertical wall, 45over horizontal filer, 127
Froude number, see Dimensionless groups,Froude number
Gas absorption:chemical in bubble column, 362, 364,
377continuous stirred tank reactor, 390,
408, 409packed column, 394, 410, 411
Generalized notation:continuity equation, 482continuity equation for binary mixture,
484equations of motion, 482equations of motion for porous media,
483thermal energy equation, 483
Graetz number, see Dimensionless groups,Graetz number
Grashof number, see Dimensionlessgroups, Grashof number for heattransfer, Grashof number for masstransfer
Group theory, 7
Heat conduction, see Heat transferHeat convection, see Heat transferHeat transfer:
boundary layer flow between parallelplates with unheated entrance length,236
boundary-layer flow over flat plate withunheated entrance length, 239
boundary-layer flow over flat plate, 167,238, 240
boundary-layer flow over plate withspecified heat flux, 240
boundary-layer flow over plate withsuction, 241
conductive in cylinder, 225, 230conductive film theory model, 153conductive in annulus with prescribed
temperatures, 226conductive in circular fin, 227conductive in cylinder with
temperature-dependent thermaldiffusivity, 246
conductive in rectangular parallelepiped,225
conductive penetration theory model,153
conductive through plane wall, 153, 224conductive two-dimensional with end
effects, 146convective between heated parallel
plates, 236
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INDEX 523
convective between parallel plates withfluid injection, 202
convective between parallel plates withtemperature-dependent viscosity, 180
convective between parallel plates withviscous dissipation, 163, 234, 235
convective in fluid-wall aerosol flowreactor, 448, 475, 476, 477, 478,479
evaporative cooling of nonflowing film,211, 242
falling film flow, 206, 236, 237free convection between parallel plates
at different temperatures, 183free convection next to heated vertical
plate with suction, 247free convection next to heated vertical
plate, 218, 247freezing of water-saturated soil 173,
243, 244home freezer performance, 250hot wire anemometer, 249melting of frozen soil, 242, 243rectangular fin, 196unsteady-state axial in solid cylinder,
228unsteady-state conductive in cooking
turkey, 187unsteady-state conductive through plane
wall with imposed temperatures, 153unsteady-state convective from solid
sphere at high Biot number, 209unsteady-state convective from solid
sphere at low Biot number, 159, 231unsteady-state convective to plane wall,
232unsteady-state convective to solid
cylinder, 233unsteady-state in membrane thermal
casting, 438, 471, 472, 473, 474unsteady-state in slab with heat
generation, 248unsteady-state radial conduction in
sphere, 248unsteady-state radial in solid cylinder,
228unsteady-state radial in spherical shell,
229
unsteady-state resistance heating inwire, 200, 223
unsteady-state to sphere withtemperature-dependent conductivity,250
Heat transfer coefficient, 159, 193, 196,209, 227, 229, 232, 233, 234, 244,246, 248, 250
Heterogeneous chemical reaction, seeChemical reaction, heterogeneous
High Reynolds number flow, seeApproximation, high Reynoldsnumber
Hollow fiber, 101, 287, 328, 349, 415Homogeneous chemical reaction, see
Chemical reaction, homogeneousHydraulic ram, 76, 116Hydrodynamic boundary layer, see
Approximation, hydrodynamicboundary layer
Hydrogen fuel production, see Chemicalreactor, fluid-wall aerosol
Identity tensor, 47, 63, 483Incompressible flow approximation, see
Approximation, incompressible flowIntegral balance:
auxiliary condition, 47, 68, 96, 102,103, 119, 174, 175, 176, 195, 213,214, 243, 244, 246, 374
conservation of energy, 174conservation of mass, 47, 299, 323, 337,
342, 344, 345, 346, 351species, 275, 298, 309, 347, 348, 374
Integral relationships:Gauss-Ostrogradskii divergence
theorem, 504Leibnitz’ formula, 504
Interphase mass transfer time scale, seeTime scale, interphase mass transfer
Isolating quantities in dimensionalanalysis, 14, 16, 436, 461, 479
Jet flow, 94, 126
Kinematic surface condition, 47, 52, 68,96, 127, 128, 129
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524 INDEX
Leibnitz formula, 504Lewis number, see Dimensionless groups,
Lewis numberLie groups, 7Little oh of one, 2, 19, 145, 252Local scaling, 10
in fluid flow, 31, 32, 36, 47, 49, 67, 68,83
in heat transfer, 166, 167, 170, 194,in mass transfer, 264, 268, 281, 294
Low Reynold’s number approximation, seeApproximation, creeping flow
Lubrication flow, see Approximation,lubrication flow
Mach number, see Dimensionless groups,Mach number
Macroscale scaling analysis, see Scalinganalysis, macroscale
Mass balance, see Equation of continuityfor binary mixture
Mass transfer:convective between rotating cylinders
with concentration-dependentviscosity, 352
convective from sphere, 355convective in falling film flow down a
vertical cylinder, 338convective in falling film flow down a
vertical plane, 269, 338convective in field-flow fractionation,
316convective in fluid-wall aerosol flow
reactor, 448convective in membrane-lung
oxygenator, 287, 415convective in oxygen transfer to red
blood cell, 332convective in pressure-swing gas
absorption, 424convective in Taylor dispersion of a
solute, 303convective to uniformly accessible
rotating disk, 312diffusive in crystallization from a
supersaturated solution, 345diffusive in evaporation of liquid in
tube, 273, 337
diffusive in evaporative casting ofpolymer film, 297, 350
diffusive in membrane permeation cell,321
diffusive in membrane permeation withconcentration-dependent diffusivity,277
diffusive in membrane thermal casting,438, 471, 472, 473, 474
diffusive in stationary liquid film, 253,336, 357
diffusive in swelling membrane withnonconstant diffusivity, 349
diffusive in tapered pore, 306, 337diffusive to nucleated water droplet,
344, 346film theory, 253free convection from horizontal
evaporating liquid, 357free convection in evapotranspiration
from vertical cylinder, 281,354
free convection next to permeablevertical plate, 354
penetration theory, 259, 336Mass-transfer coefficient, 212, 216, 259,
260, 289, 294, 297, 299, 332, 355,356, 357, 358, 359, 387, 400, 407,416
Mass transfer with chemical reaction:continuous stirred tank reactor, 390,
408, 409diffusional domain of slow reaction
regime, 381, 404fast reaction regime, 372, 404, 405, 407fluid-wall aerosol flow reactor, 448, 475,
476, 477, 478, 479heterogeneous in growth of nucleated
water droplet, 346heterogeneous in rusting of metal
surface, 347heterogeneous in tube flow, 266, 325,
340heterogeneous in tubular photocatalytic
reactor, 358homogeneous in aeration of water
containing aerobic bacteria, 340homogeneous in dissolution of
cylindrical capsule, 343, 344
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INDEX 525
homogeneous in dissolution of sphericalcapsule, 308, 342,
homogeneous in flow between parallelmembranes, 261, 339
homogeneous in hollow fiber membranereactor, 328, 349
homogeneous in liquid film withconcentration-dependent diffusivity,351
inner domain of instantaneous reactionregime, 373, 374, 405, 406
intermediate domain of slow reactionregime, 403
intermediate reaction regime, 371, 404,407
kinetic domain of slow reaction regime,380, 405
packed column chemisorption, 394, 410,411
slow reaction regime, 371, 400, 401, 408surface domain of instantaneous reaction
regime, 373, 405Membrane:
convective heat transfer between parallelwith flow injection, 202
flow between parallel with velocityprofile distortion, 136
flow between parallel, 143flow between permeable and parallel flat
plate, 137flow in annular region between
concentric, 139flow in closed-end parallel, 141, 143flow in hollow fiber with permeation,
101heat transfer in boundary-layer flow
over with suction, 241mass transfer in artificial lung
oxygenator, 287, 415, 467, 468mass transfer in field-flow fractionation
between parallel, 316mass transfer in hollow fiber, 328, 349mass transfer in permeation cell, 321mass transfer in swelling, 277, 349mass transfer with nonconstant
diffusivity through, 277, 349mass transfer with reaction in flow
between parallel, 261, 339
thermal casting, 438, 471, 472, 473,474
Membrane-lung oxygenator, 287, 415,467, 468
Microscale scaling analysis, see Scalinganalysis, microscale
Minimum parametric representation, 13,35, 62, 64, 65, 69, 70, 97, 101, 104,108, 109, 187, 190, 192, 196, 224,287, 288, 291, 293, 296, 297, 335,414, 415, 444, 456, 457, 464
Momentum balance, see Equations ofmotion; Equations of motion forporous media
Momentum boundary layer, see Region ofinfluence, fluid flow
Moving boundary:dissolution of spherical capsule, 308evaporation of liquid, 273evaporative casting of polymer film, 297evaporative cooling of liquid film, 211,
242freezing of water-saturated soil, 243,
244instantaneous reaction front, 373melting of frozen soil, 173, 242, 243thermal casting of membrane, 438, 471,
472, 473, 474
Navier Stokes equation, see Equations ofmotion
Newton’s constitutive equation, 483, 489,491, 492, 493
Nomenclature, see NotationNormal stress boundary condition, see
Boundary condition, normal stressNo-slip condition, see Boundary condition,
no-slipNotation, 506Nozzle, 114Nucleation, 344, 346Nusselt number, see Dimensionless groups,
Nusselt number for heat transfer,Nusselt number for mass transfer
Observation time, see Time scale,observation time
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526 INDEX
Order of magnitude, see Big ”oh” of one;Little ”oh” of one; Scaling analysis
Order-of-one scaling analysis, see Big”oh” of one; Little ”oh” of one;Scaling analysis
Oscillated plate, 38, 68, 110, 111Oscillating disk viscometer, see
Viscometer, oscillating diskOscillating tube, 122, 142, 287, 415, 467,
468
Packed column, 124, 394, 410, 411Peclet number, see Dimensionless groups,
Peclet number for heat transfer, Pecletnumber for mass transfer
Penetration theory, see Approximation,penetration theory in heat transfer;Approximation, penetration theory inmass transfer
Permeation:cell for membrane characterization, 321evapotranspiration through vertical
cylinder, 281, 354hollow fiber membrane reactor, 328, 349influence on heat transfer in
boundary-layer flow over flatmembrane, 241
influence on velocity profile in flowbetween parallel membranes, 136
membrane-lung oxygenator, 287, 415,467, 468
through closed-end hollow fiber causingaxial flow, 101
through closed-end parallel membranescausing axial flow, 141, 143
through concentric membranes withaxial flow in annular region, 139
through membrane parallel to flat platewith laminar flow, 137
through membrane with nonconstantdiffusivity, 277, 349
through parallel membranes in field-flowfractionation, 316
through parallel membranes in flow withhomogeneous reaction, 261, 339
through parallel membranes withconvective heat transfer, 202
through parallel membranes withlaminar flow, 141, 143
through walls of rotating co-axialcylinders with axial flow, 352
Phase transition:freezing of water-saturated soil, 243,
244melting of frozen soil, 173, 242, 243thermally induced phase separation
process for membrane formation, 438,471, 472, 473, 474
Pi theorem:in fluid flow, 13, 62, 65, 66, 70, 109in heat transfer, 187, 192, 193, 196,
224, 248, 250, 251in mass transfer, 287, 292, 297, 335, 437
Plate, see Flat platePoint quantities, 25, 26, 37, 43, 67, 111,
156, 173, 193Porous media flow:
annulus with radial tube flow, 133between parallel flat plates, 132bounded by flat plate, 131Brinkman term, 69, 106, 483, 494, 495,cylindrical tube, 52Darcy’s law, 53, 106, 426determining soil permeability, 105gravity-driven film flow over, 99, 133liquid film flow over, 99permeability, 53, 99, 105, 106, 109,
110, 137, 426superficial velocity, 53, 55, 99, 426
Practice problems:fluid flow, 110heat transfer, 224mass transfer, 336mass transfer with chemical reaction,
399process design, 467
Prandtl number, see Dimensionless groups,Prandtl, number
Pressure-swing adsorption, 424, 468, 469,470, 471
Primary quantity, 8Process design:
chemisorption in diffusional domain ofslow reaction regime, 384
chemisorption in fast reaction regime,385
chemisorption in inner domain ofinstantaneous reaction regime, 386
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INDEX 527
chemisorption in intermediate reactionregime, 385
chemisorption in kinetic domain of slowreaction regime, 383
chemisorption in surface domain ofinstantaneous reaction regime, 387
continuous stirred tank reactor, 390fluid-wall aerosol flow reactor, 448membrane formation, 438membrane-lung oxygenator, 415packed column chemisorption, 394physical absorption, 382pressure-swing absorber, 424
Quasi-stationary hypothesis, seeApproximation, quasi-stationaryhypothesis
Quasi-steady-state, see Approximation,quasi-steady-state
Rayleigh free convection, 183, 218, 247,281, 354, 357
Rayleigh number, see Dimensionlessgroups, Rayleigh number
Reaction domain:diffusional of slow reaction, 381inner of instantaneous, 373, 405, 406intermediate of slow reaction, 403kinetic of slow reaction, 380surface of instantaneous, 373, 405See also Mass transfer with chemical
reactionReaction processes, see Mass transfer with
chemical reactionReaction regime:
fast, 372instantaneous, 373intermediate, 371slow, 371See also Mass transfer with chemical
reactionReaction time scale, see Time scale,
reaction in macroscale element; Timescale, reaction in microscale element
Reactions, see Mass transfer with chemicalreaction
Rectangular coordinates:continuity equation for binary system, 499continuity equation, 486equations of motion, 489
equations of motion for porous media,494
thermal energy equation, 496Reference factor, 10Region of influence scaling, 10
fluid flow, 20, 25, 32, 35, 36, 39, 40, 41,42, 43, 45, 53, 55, 67, 68, 69, 80, 83,85, 87, 111, 113, 120, 122, 132, 134,135, 137, 139, 418, 435, 468, 471,
heat transfer, 146, 151, 152, 153, 156,157, 158, 167, 170, 171, 193, 194,205, 206, 208, 209, 216, 217, 220,225, 228, 229, 230, 231, 235, 236,237, 238, 239, 240, 243, 244, 247,473, 476
mass transfer, 253, 260, 265, 271, 272,279, 280, 281, 285, 288, 294, 295,296, 301, 311, 312, 315, 325, 331,337, 338, 339, 340, 341, 345, 346,347, 348, 350, 351, 356, 415, 418,422, 435
mass transfer with chemical reaction,261, 266, 308, 325, 328, 339, 340,342, 343, 344, 347, 351, 358, 364,377
Reynolds number, see Dimensionlessgroups, Reynolds number
Rotating disk viscometer, see Viscometer,rotating disk
Rotating flow:annulus with end effects, 88between spinning parallel disks with
radial injection, 115disk viscometer, 116spinning disk, 79tube with axial flow, 112
Rusting, 347
Scale-up analysis, 2, 143, 248, 250Scaling analysis:
o(1) procedure, 8dimensional analysis procedure, 14estimated error, 3, 12, 24, 37, 94, 150,
156, 163, 193, 462macroscale element, 361, 377, 402, 403,
404, 407, 426, 449mathematical basis, 7microscale element, 361, 362, 364, 401,
426, 449
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528 INDEX
Scaling derivatives, see Derivative scalingSchmidt number, see Dimensionless
groups, Schmidt numberSecondary quantity, 8Sherwood number, see Dimensionless
groups, Sherwood numberSidewall effects in fluid flow, 43, 116Sign convention:
constitutive equation, 481, 483, 489,491, 492
force on fluid particle, 480Sizing of equipment, 3, 424, 448Species continuity equation, see Equation
of continuity for a binary mixtureSphere:
conductive heat transfer at low Biotnumber, 159, 231
conductive heat transfer in at high Biotnumber, 209
convective heat transfer from, 248convective mass transfer from, 355diffusional growth of nucleating, 344,
346diffusive mass transfer from dissolving,
308, 342diffusive mass transfer into red blood
cell, 332falling at terminal velocity, 62, 142unsteady-state with
temperature-dependent conductivity,250
water treatment via aeration from, 340Spherical coordinates:
continuity equation, 487continuity equation for binary system,
502equations of motion, 492equations of motion for porous media,
495thermal energy equation, 497
Stratified flow, 125Superficial velocity, see Porous media,
superficial velocity
Tangential stress boundary condition, seeBoundary condition, tangential stress
Tangential unit vector, see Unit vector,tangential
Taylor dispersion, 303Taylor series expansion:
of concentration-dependent density, 283,355
of diffusion coefficient, 279of pressure-dependent density, 58of small dimensionless group, 15, 66of temperature-dependent density, 185,
219of temperature-dependent viscosity, 181
Terminal velocity, 62Thermal boundary layer, see Region of
influence, heat transferThermal energy equation:
cylindrical coordinates, 497generalized notation, 483rectangular coordinates, 496spherical coordinates, 497
Thermally induced phase-separationprocess for membrane formation, 438,471, 472, 473, 474
Thiele modulus, see Dimensionlessgroups, Thiele modulus
Time scale:adsorption, 431axial dispersion, 431conduction, 162, 193, 201contact, 368, 379, 431diffusion, 258, 268, 305, 368interphase mass transfer, 379observation, 38, 40, 49, 50, 68, 93, 94,
155, 157, 161, 162, 177, 193, 194,201, 210, 215, 216, 217, 246, 257,276, 301, 305, 310, 319, 324, 341
periodic motion, 40, 420pressurization, 430, 431, 434reaction in macroscale element, 263,
268, 379reaction in microscale element, 368viscous, 40
Time scaling, see Time scaleTransient phenomena, see Unsteady-stateTube, see Cylindrical tube
Uniform magnifications and contractions, 7Unsteady-state fluid flow:
between approaching parallel circularplates, 72
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INDEX 529
between stationary and oscillatingparallel plates, 38
draining of film down vertical plate, 45falling head method for determining soil
permeability, 105hydraulic ram, 116impulsively initiated in tube, 142membrane-lung oxygenator, 287, 415oscillating disk viscometer, 117oscillating tube, 122, 142, 287, 415
Unsteady-state heat transfer:conductive in cooking turkey, 187conductive in slab with heat generation,
248conductive in solid cylinder, 228, 230,
233conductive in spherical shell, 229conductive in thermal casting of
membrane, 438, 471, 472, 473, 474conductive through wall, 153, 224, 232convective from solid sphere, 159, 209,
231, 250evaporative cooling of nonflowing film,
211, 242freezing of water-saturated soil, 173,
243, 244melting of frozen soil, 242, 243resistance heating in wire, 200, 223
Unsteady-state mass transfer:convective in aeration of water, 340convective in field-flow fractionation,
316convective in membrane-lung
oxygenator, 287, 415convective in pressure-swing adsorption,
424, 468, 469, 470, 471convective in Taylor dispersion, 303diffusive evaporation of liquid, 273, 337diffusive in crystallization from
supersaturated liquid, 345
diffusive in dissolution of cylindricalcapsule, 343, 344
diffusive in dissolution of sphericalcapsule, 308, 342
diffusive in evaporative polymer filmcasting, 297, 350
diffusive in growth of nucleated waterdroplet, 344, 346
diffusive in membrane permeation cell,321
diffusive in rusting of planar surface,347
diffusive in thermal casting ofmembrane, 438, 471, 472, 473, 474
diffusive through stationary film, 253,259, 336
Unsteady-state mass transfer with chemicalreaction:
macroscale element scaling, 377microscale element scaling, 364
Vector-tensor notation, 482Viscometer:
falling needle, 117oscillating disk, 117rotating disk, 116
Viscous dissipation 163, 180, 202, 235Viscous time scale, see Time scale, viscous
Wall:conduction through one-dimensional,
153, 224, 232conduction through one-dimensional
with heat generation, 248conduction through three-dimensional,
225conduction through two-dimensional,
146Wetted-wall column, see Falling flow