EXERCISES

Reaction Networks, Nucl Physics Input, Hydro, BBN

Hydrodynamic Exercises

(During-Course Assignment)

Run a hydrodynamic code for:

  1. Read the Problems & Solutions guide.
    1. Set up and run the Sedov Blast problem.
    2. Set up and run the Bondi Accretion problem.

You can also try:

  1. Gravitational collapse of:
    • Uniformly distributed “star” (P(initial) = 0)
    • Simple density profile (P(initial) = 0)
    • Are there self-similar solutions?
  2. Energy injection into gas clump of:
    • uniformly distributed mass
    • simple density profile $\rho(r) = \rho(0)[1-(r/R)^2]^n $
    • How does the evolution change with different injection energies
  3. Drive a piston through some medium
    • Piston in a cylinder
    • Spherical piston driving outwards
    • Spherical piston driving inwards
    • How does the outward driven spherical piston compare to the energy injection?

(Pre-Course Assignment)

Download, compile and run the Hydrodynamics Code

  1. Download the VH1.0 Hydrodynamics Code.
  2. Compile the code with your fortran90 compiler.
  3. Report in the Hydrodynamics Code discussion thread your success with machine information.
  4. Read the Quick Start guide.
    1. Run the shock tube problem set up for beginners.
    2. Plot and compare your results to the expected solution.
  5. Read the Inside the code guide.
  6. The VH1 User’s Guide for the serial version is hidden at VH1 User's Guide.