Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ......
Transcript of Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ......
![Page 1: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/1.jpg)
Fluent & Multiphase Flows
Salmane Saadani
Fluent Sweden AB
![Page 2: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/2.jpg)
Historical Background The original FLUENT software was developed at the
University of Sheffield, UK in the 1970s (Tempest)
1983 title in FLUENT was transferred to a New HampshireCompany called ‘Creare’
1988 Fluent group at Creare becomes Fluent Inc.
1999 Fluent Sweden opened
2006 Fluent has become part of the Ansys Group.
![Page 3: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/3.jpg)
Fluent Inc. HQ - Lebanon, NHEvanston, ILSanta Clara, CAAn Arbor, MIMorgantown, WV
N. America Europe Asia/PacificFluent UKFluent FranceFluent GermanyFluent ItalyFluent SwedenFluent Benelux
Fluent Asia-Pacific, JapanTokyo and OsakaFluent India
Worldwide Offices
Numerous offices worldwide in additionto various distributors
![Page 4: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/4.jpg)
FLUENT SWEDEN
Services Software Sales
Technical support
Training
Consulting
14 Employees 5 Ph.D
5 Siv Ing
![Page 5: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/5.jpg)
Fluent & Multiphase FlowsFluent Offers:
A wide range of proven and leading edgeMultiphase models.
Advanced meshing tools.
Optimal Parrallelization schemes
Worldwide experience and involvement inMultiphase Applications
![Page 6: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/6.jpg)
Fluent & Multiphase Flows
It Means:
Accurate flow simulations
Accurate geometry representation
Quick solutions
Ability to solve unconventional problems
![Page 7: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/7.jpg)
Multiphase Flow Regimes Bubbly flow/ Droplet flow/
Particle-laden flow = Discretesecondary phase structures(bubbles, droplets, solidparticles) in a continuousprimary phase
Slug flow = Large bubbles in acontinuous liquid
Annular flow = Continuousliquid along walls, gas in core
Stratified / Free-surface flow= Immiscible fluids separatedby a clearly-defined interface
Jet flow = thin liquid coresurrounded by bulk gas phase
Film flow = thin liquid layerflowing along wall boundaries
Bubbly flow / Droplet flow /Particle-laden flow
Slug flow
Annular flow
Jet flow Film flow
Free-surface flow
![Page 8: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/8.jpg)
Fluent Multiphase Models
Volume of Fluid (VOF) Model (free-surface / stratifiedflows, filling, sloshing)
Mixture Model (bubbly, droplet, Granular Flow)
Discrete Phase Model (bubbly, droplet, particle-laden flowswith α ≤ 10%)
The Eulerian model (Advanced Particle Modeling)
• Kinetic theory of granular flows
• Population Balance Model
![Page 9: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/9.jpg)
Population Balance Model Nucleation
Chemical Reaction
Phase change
• Boiling
Growth
Chemical Reaction
Crystal growth
Breakage
Particle-particle collisions
Turbulence and shear
Aggregation
Particle-particle collisions
Coagulation
Coalescence
Agglomeration
Time
Time
Nucleation: Creation of particles
Growth (Shrinkage)
Aggregation
Break-up
![Page 10: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/10.jpg)
Meshing
•Tetraheadral
•Hexaheadral
•Multiple Mesh Type Combinations
•Hexcore Mesh
•Moving Deforming Mesh
•Polyheadral
![Page 11: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/11.jpg)
Meshing
Hybrid Mesh
439,781 cellsPolyhedral Mesh
174,552 cells
Grid reduction by a factorof 3 to 5
![Page 12: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/12.jpg)
Mixing Tank
1119006 cellsFine Tetrahedral Mesh
370549 cellsCoarse Tetrahedral Mesh
237404 cellsPolyhedral Mesh
![Page 13: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/13.jpg)
Velocity Profiles Turbulent Kinetic Energy Profiles
Coarse Tetrahedral: 370,549 cellsFine Tetrahedral: 1,119,006 cellsPolyhedral: 237,404 cells
Geometry
0
0.2
0.4
0.6
0.8
1
1.2
0 0.1 0.2 0.3 0.4 0.5z/H
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0 0.1 0.2 0.3 0.4 0.5z/H
Mixing Tank
![Page 14: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/14.jpg)
13001850Polyhedral with PBCS
2700~41800Fine Tetrahedral with PBCS
Memory(MB)
Relative SingleCPU TimeIterations
Mixing Tank
![Page 15: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/15.jpg)
ParallelParallel I/O Market leader in Parallel Performance Fast case and data file read/write Very Good ScalabilityOther Parallel Enhancements Load Balancing (Prevents Bottlenecking) Ability to read Hexcore meshes directly into
parallel without partitioning
![Page 16: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/16.jpg)
FLUENT 6.3
Parallel Data File Write
9.834
5.282Xeon/GigE
5.612Opteron/Infiniband6.334
6.68
Speed-up
FLUENT 6.3/FLUENT 6.2
Numberof CPUs
Platform andInterconnect
![Page 17: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/17.jpg)
Fluent Involvement
Fluent works closelywith industry leadersworldwide to push thelimit of CFD further
![Page 18: Fluent & Multiphase Flows - Chalmers · 1988 Fluent group at Creare becomes Fluent Inc. ... •Population Balance Model. Population Balance Model Nucleation Chemical Reaction Phase](https://reader033.fdocuments.in/reader033/viewer/2022052208/5b42d8667f8b9a14058b6361/html5/thumbnails/18.jpg)
Conclusion FLUENT continues to
push the boundaries for More accurate flow simulations
More accurate geometrymodeling
Quicker solutions