3D Euler equations - Periodic boundary conditions

Problem description

Circular shock-waves expand and interact in open space. This example demonstrates that AMROC can handle even multiple periodic boundary conditions correctly. See two-dimensional analogue.

Initial / Boundary Conditions

Numerical Simulation

• Three-dimensional Euler-equations for an ideal gas (Air with gamma=1.4)
• Wave-propagation algorithm, Minmod-limiter
• Calculation with CFL-No. 0.8 to time t=0.84
• AMR-computation with a coarse grid of 30x30x30cells

3 grid levels:

• Calculation of 58 time steps
• 2 levels with refinement factor 2 are used.
• Finest level corresponds to 120x120x120 grid (1.73 M cells)

Results: 3 Levels

-- RalfDeiterding - 06 Dec 2004