Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire...

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Fluids Physics 202 Lecture 3

Transcript of Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire...

Page 1: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Fluids

Physics 202 Lecture 3

Page 2: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Pascal’s principle: any pressure change will flow through the entire fluid equally

Page 3: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Archimedes’ principle: vertical pressure differentials provides the force of buoyancy

Page 4: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Pressure differentials cause flow; steady flow moves along streamlines of current

Page 5: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

The steady flow of an ideal fluid is both incompressible and non-viscous

Page 6: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Bernoulli's equation describes the pressure differentials in a ideal fluid that is flowing

Page 7: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Viscosity is fluid friction; leads to air drag and requires extra pressure for flow

Page 8: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Turbulence driven by speed and size of the object, viscosity and density of the fluid

Page 9: Fluids Physics 202 Lecture 3. Pascal’s principle: any pressure change will flow through the entire fluid equally.

Navier-Stokes equations go beyond Bernoulli, but are very difficult to solve


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