Fluid-Structure Interaction with Clawpack

Settings in solver.in

• Recommended options for Clawpack together with Ghost-fluid method (GFM) to obtain an absolut robust and reliable method:
  • MUSCL reconstruction in primitive variables: Method(2)>=4 or Method(2)=1 (first order)
  • Dimensional splitting: Method(3)=-2
  • Positivity preserving upwind scheme:
    • Roe+HLL or HLL approximative Riemann solver
    • VanLeer or Steger-Warming flux vector splitting
    • Exact Riemann solver (not always available)
• Components that cannot be proven to be positivity preserving might also work in some cases:
  • Characteristic Wave-by-wave reconstruction: Method(2)=2
  • Multi-dimensional Wave Propagation Method: Method(3)=2 or 22
  • Roe approximative Riemann solver in original form (without dynamic transition to HLL)

Standard Euler equations with GFM

• 2D
  • Lift-up of a sphere in 2D (verification test) [codes]
  • Flow over a ramp (comparison between Cartesian schemes and GFM) [codes]
  • Flow over a double wedge configuration [codes]
  • Underwater explosion below a ship hull
  • Impulse generation by an open shock tube
• 3D
  • Proximal bodies in hypersonic flow (shock-induced loading on two static spheres) [codes]
  • Lift-up of a sphere in 3D [codes]
  • Spheres in hypersonic flow expanding from close-packed configuration [codes]
  • Blast wave propagation in a mining pit accident

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-- RalfDeiterding - 21 Jan 2005