Fluids

Physics 202, Lecture 3

1

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

Physics 202, Lecture 3

2

Archimedes’ principle: vertical pressure differentials provides the force ofbuoyancy

Physics 202, Lecture 3

3

Pressure differentials cause flow; steady flow moves along streamlines ofcurrent

Physics 202, Lecture 3

4

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

Physics 202, Lecture 3

5

Bernoulli’s equation describes the pressure differentials in a ideal fluid thatis flowing

Physics 202, Lecture 3

6

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

Physics 202, Lecture 3

7

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

Physics 202, Lecture 3

8

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

Physics 202, Lecture 3

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