Uniqueness of potential flows. Fundamental solutions of Laplace's equation
in 3D as a fluid sources and sinks.

Non-reversible character in real fluids. The Rankine fairing. Calculation
of force from momentum integral.

A model of flow past an airship. Butler sphere theorem and flow past
a sphere.

D'Alembert's paradox from kinetic energy.

Irrotational flow in 2D using complex potentials. Blasius theorem for the force on an aerofoil.

**Suggested reading: **The sections given here
are somewhat technical, and are suggested only

as a supplement to the lecture for students ith some familiarity with
potential theory..

- Batchelor 120-124
- Milne-Thomson 84-95
- L & L 26-30