Cheg 355 - Lecture Notes - Sept. 25, 2001
Announcements
The homework assigned today has been delayed until a week from Thursday
(October 4). Remember that the first hour exam is on Tuesday, October 9!
Class notes
Scanned Notes
The main points of the lecture were
- Derivation of the Navier-Stokes Equations
Goals:
After this class you should be able to:
- Derive the Navier-Stokes equations.
- Understand where each of the terms come from, and what physically each one represents.
- Know the assumptions leading to Newton's Law of Viscosity.
Reading
- The class notes.
- Middleman, chapter 4.
Additional Readings:
In our class demonstration today we looked at Crookes' Radiometer, which was
initially thought to be a demonstration of the momentum associated with quanta of
light. It took many years before the noted hydrodynamicist Osborne Reynolds (1879)
was able to show that it was actually a demonstration of the migration of molecules due
to thermal gradients around the edges of the vanes. For a detailed explanation of the
phenomenon and its history, go here.
Homework Exercises (Due Oct. 4, 2001)
problem set 5
solution
David.T.Leighton.1@nd.edu