Cheg 355 - Lecture Notes - Nov. 3, 2005
Announcements
Class notes
Scanned Notes
The main points of the lecture were
- High Re Flows: Bernoulli's Equation
Goals:
After this class you should be able to:
- Use Bernoulli's Equation to solve for the pressure distribution in different geometries.
- Know what inviscid, irrotational flow means!
Reading
- The class notes.
- BS&L, chapter 4
- Multi-Media Fluid Mechanics: Continue working through Kinematics: 2-D Flows and Vorticity.
Additional Readings:
In class today we talked about Bernoulli's Equation and how it could be used to
solve for pressure distributions - and how at high Re the pressure goes down when the
velocity goes up! A classic example of how this can be employed is the Venturi meter.
Basically, the flow rate of a
fluid is measured by determining the pressure differential produced by a slight
contraction of a pipe. While usually little beasties (e.g., the diameter of a pipe),
sometimes they can grow to truly gargantuan proportions. A link describing what is
billed as the world's largest flow meter is given
here.
Demonstration:
Bernoulli's Equation and the Floating Ball.
Homework Exercises (Due Nov. 15, 2005)
problem set 9
solution
David.T.Leighton.1@nd.edu