The low Reynolds number limit and Stokes' equations. Basic solutions.
Stokes' solution for flow

past a rigid sphere. The Stokeslet. Stokes' paradox in two dimensions.
Oseen's improvement are low Reynolds number

theory as a singular perturbation. Time-dependent flow in the Stokesian
realm. Locomotion and the

scallop theorem.

**Suggested reading:**

- Batchelor 2290235, 240-246.
- L & L 56-64.