Part IB - Fluid Dynamics
Lectured by P. F. Linden, Lent 2016
These notes are not endorsed by the lecturers, and I have modified them (often significantly) after lectures. They are nowhere near accurate representations of what was actually lectured, and in particular, all errors are almost surely mine.
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Contents
- V Full version
- 0 Introduction
- 1 Parallel viscous flow
- 1.1 Preliminaries
- 1.2 Stress
- 1.3 Steady parallel viscous flow
- 1.4 Derived properties of a flow
- 1.5 More examples
- 2 Kinematics
- 2.1 Material time derivative
- 2.2 Conservation of mass
- 2.3 Kinematic boundary conditions
- 2.4 Streamfunction for incompressible flow
- 3 Dynamics
- 3.1 Navier-Stokes equations
- 3.2 Pressure
- 3.3 Reynolds number
- 3.4 A case study: stagnation point flow (u = 0)
- 3.5 Momentum equation for inviscid (nu = 0) incompressible fluid
- 3.6 Linear flows
- 3.7 Vorticity equation
- 4 Inviscid irrotational flow
- 4.1 Three-dimensional potential flows
- 4.2 Potential flow in two dimensions
- 4.3 Time dependent potential flows
- 5 Water waves
- 5.1 Dimensional analysis
- 5.2 Equation and boundary conditions
- 5.3 Two-dimensional waves (straight crested waves)
- 5.4 Group velocity
- 5.5 Rayleigh-Taylor instability
- 6 Fluid dynamics on a rotating frame