Sponge LayerΒΆ

For theory of sponge layers, see Sponge Layer

SPECIFICATION OF SPONGE LAYER

  • DIRECT_SPONGE: logical parameter for L-D type sponge, T - sponge layer, F - no sponge layer.
  • FRICTION_SPONGE: logical parameter for friction type sponge, T - sponge layer, F - no sponge layer.
  • DIFFUSION_SPONGE: logical parameter for diffusion type sponge, T - sponge layer, F - no sponge layer.
  • Csp: The maximum diffusion coefficient for diffusion type sponge. Default: 1.0
  • CDsponge: The maximum Cd for friction type sponge. Default: 10.0
  • Sponge_west_width: width (m) of sponge layer at west boundary.
  • Sponge_east_width: width (m) of sponge layer at east boundary.
  • Sponge_south_width: width (m) of sponge layer at south boundary.
  • Sponge_north_width width (m) of sponge layer at north boundary
  • R_sponge: decay rate in L-D type sponge layer. Its values are between 0.85 \(\sim\) 0.95. Default: 0.85.
  • A_sponge: maximum damping magnitude in L-D type sponge. The value is \(\sim\) 5.0. Default: 5.0