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[01847] Non-reflective boundary conditions for the piston problem of gas dynamics

  • Session Time & Room : 5D (Aug.25, 15:30-17:10) @E508
  • Type : Contributed Talk
  • Abstract : We consider the piston problem of gas dynamics, described by the Lagrangian formulation of the Euler equations for an ideal compressible gas. While a highly accurate numerical solution can be obtained in the interior of the domain through state-of-the-art techniques like WENO reconstruction and SSP-RK time-stepping, boundary discretization can lead to unphysical reflections. We investigate and implement several efficient boundary conditions to deal with this problem without significantly increasing the size of the computational domain.
  • Classification : 65M08, 65M22, 76N30, 35L04, 35L65
  • Format : Talk at Waseda University
  • Author(s) :
    • Carlos Muñoz (KAUST)