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2D Euler equations - Explosion in a Box

Problem description

A circular shock-wave expands in an enclosed box. The reflected shocks interact in a complex manner. This example demonstrates basic adaptive functionality. See three-dimensional analogue.


Initial / Boundary Conditions

ib_box.gif


Numerical Simulation

  • Two-dimensional Euler-equations for an ideal gas (Air with gamma=1.4)
  • Wave propagation scheme with Minmod wave-limiter and transverse wave propagation
  • Calculation with CFL-No. 0.8 to time t=0.5
  • AMR-computation with a coarse grid of 150x150 cells

2 grid levels:

  • Calculation of 196 time steps
  • 1 levels with refinement factor 2 is used .
  • Finest level corresponds to 300x300 grid (90 K cells)

3 grid levels:

  • Calculation of 199 time steps
  • 2 levels with refinement factor 2 and 4 are used .
  • Finest level corresponds to 1200x1200 grid (1.4 M cells)


Results: 2 Levels / 3 Levels / Variation of Distribution / Variation of GuC-Factor



-- RalfDeiterding - 04 Dec 2004


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