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[00836] Reynolds-blended weights for BDDC in applications to Navier-Stokes equations

  • Session Time & Room : 4D (Aug.24, 15:30-17:10) @E504
  • Type : Contributed Talk
  • Abstract : We solve incompressible Navier-Stokes equations by the finite element method with one step of the Balancing Domain Decomposition by Constraints (BDDC) method. This method requires a scaling operator at the interface between subdomains. We introduce a new interface scaling tailored to Navier-Stokes equations. The weights in this averaging consider a local Reynolds number. This Reynolds-blended scaling is compared with several existing approaches on 3D lid-driven cavity and backward-facing step problems.
  • Classification : 65Y05
  • Format : Talk at Waseda University
  • Author(s) :
    • Martin Hanek (Czech Technical University in Prague, Institute of Mathematics of the Czech Academy of Sciences)