Astrophysical Gasdynamics

The course book is:
Cathy J. Clarke and Bob Carswell, Principles of Astrophysical Fluid Dynamics
(hardcover ISBN: 978-0521853316, paperback ISBN: 978-0521618564)
Additional handouts and copies will be provided for parts not covered in the book

Exercises I
Exercises II
Exercises III
Exercises IV
Answers to exercises
Instructions for the computer lab. Note that the deadline for handing in the report is Feb 1, 2008. The report should be written in a relatively self-contained, narrative style. Imagine you write for someone who has NOT read the questions in the instructions.
Exam of 2006 plus answers

Other books which cover the subject and which may be useful:

Arnab Rai Choudhuri, The Physics of Fluids and Plasmas: An Introduction for Astrophysicists
Frank H. Shu, The Physics of Astrophysics II: Gas Dynamics
L.D. Landau & E.M. Lifshitz, Course of Theoretical Physics 6: Fluid Mechanics
Michael J. Thompson, An Introduction to Astrophysical Fluid Dynamics
Milton Van Dyke, An Album of Fluid Motion (picture book)

Books on numerical hydrodynamics:

Randall J. LeVeque, Finite Volume Methods for Hyperbolic Problems (website)
Culbert B. Laney, Computational Gasdynamics

Some links:

Timetable

(TIMETABLE) (ht2007)
Week	Date	Time	Comment
45	Tue Nov 6	10-12	L1
45	Thu Nov 8	10-12	L2
46	Tue Nov 13	10-12	L3
46	Thu Nov 15	10-12	L4
47	Thu Nov 22	10-12	L5
48	Tue Nov 27	10-12	L6
48	Tue Nov 27	13-15	RÖ1
48	Wed Nov 28	13-15	L7
48	Thu Nov 29	10-12	RÖ2
49	Tue Dec 4	10-12	L8
49	Thu Dec 6	10-12	L9
49	Thu Dec 6	13-15	RÖ3
50	Mon Dec 10	13-15	L10
50	Wed Dec 12	10-12	L11
50	Wed Dec 12	13-15	L12
50	Thu Dec 13	10-12	RÖ4
3	Mon Jan 14	9-14	Tentamen
14	Mon Mar 31	12-17	Omtentamen

All lectures and exercise classes will be given in the lecture room at the Astronomy department.

Course content

List of the material for the exam

Part 1: Introduction

Introduction
Eulerian versus Lagrangian form
Mathematical concepts
Stream lines

Part 2: Crowd Control

Distribution functions
Boltzmann equation
Moments of the Boltzmann equation
Euler equations

Part 3: Equations is power?

Eulerian versus Lagrangian form
Advection
Gravity
Energy and relation to thermodynamics

Part 4: Spherical Cows

Non-cartesian coordinates
Exponential atmosphere
Self-gravitating spheres

Part 5: The Perfect Wave

Acoustic waves
Sound speed
Shock waves
Rankine-Hugoniot conditions
Other discontinuities/waves
Spherical blast waves / Supernova Explosions

Part 6: Behind the shower curtain

Bernoulli equation
Vorticity, potential flow
De Laval nozzle
Spherical accretion and stellar winds

Part 7: The Honey Trap

Transport phenomena
Navier-Stokes equations
Viscosity
Reynolds number
Poiseuille Flow
Accretion Disks

Part 8: The Big Mess

Instabilities
Linear perturbations
Convective instability
Rayleigh-Taylor instability
Kelvin-Helmholtz instability
Jeans instability
Turbulence

Part 9: Is it Good'enuf?

Numerical hydrodynamics
CFL condition & Upwind condition
von Neumann Stability Analysis
Conservation, finite-volume, finite-difference
Lax-Wendroff-Richtmeyer Method
Flux Vector Splitting Methods
Godunov methods
Operator Splitting
Smooth Particle Hydrodynamics

Look under Literature to see the material that was here before.

Astrophysical Gasdynamics

AS7002 (7.5 credits)

Welcome

Entrance requirements

Course description

Course literature

Timetable

Course content