The non-uniqueness of 2D potential flow past a cylinder. Blasius' expression
for the force on a body in 2D,

using complex variables. Calculation of the force using residue technique,
and the Kutta-Joukowsky formula.

Analogous calculation of moment.

Use of conformal mapping in airfoil theory. Flow plast a flat plate
using conformal

mapping. The Kutta condition and the determination of lift as a function
of angle of attack.

Quasi-steady theory of thrust production in flapping flight. Joukowski
airfoils.

**Suggested reading:**

- Batchelor 423-435
- Milne-Thomson 163-167