Cheg 355 - Lecture Notes - Nov. 12, 2001
Announcements
Remember that the second hour exam will be a week from tomorrow!
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.
- Middleman, chapter 11.
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,
actually described in detail in section 11.4 of Middleman. 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 america's largest flow meter is given
here.
David.T.Leighton.1@nd.edu