spectralVanishingViscosityFilter

Build horizontal and vertical spectral-vanishing filters.

Developer documentation: this item describes internal implementation details.

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Declaration

 [Qkl,Qj,kl_cutoff,kl_damp,j_cutoff,j_damp] = spectralVanishingViscosityFilter(kl_max,j_max)

Parameters

• kl_max maximum resolved horizontal wavenumber in radians per meter
• j_max maximum resolved vertical-mode number

Returns

• Qkl horizontal filter on the spectral grid
• Qj vertical filter on the spectral grid
• kl_cutoff exact horizontal zero-damping cutoff in radians per meter
• kl_damp estimated horizontal significant-damping wavenumber in radians per meter
• j_cutoff exact vertical zero-damping cutoff
• j_damp estimated vertical significant-damping mode

Discussion