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Forum: Main CFD Forum

February 5, 2011, 19:44

Replies: 12

DG on triangular mesh - numerical viscosity

Views: 2,846

Posted By gory

For a scalar advection equation, many schemes...

For a scalar advection equation, many schemes reduce to an identical scheme.
Godunov, Roe, Flux-vector-splitting, etc., all becomes the same upwind scheme.
BTW, this is my understanding of...

Forum: Main CFD Forum

February 5, 2011, 09:59

Replies: 12

DG on triangular mesh - numerical viscosity

Views: 2,846

Posted By gory

Lax–Friedrichs is a very dissipative flux. Try...

Lax–Friedrichs is a very dissipative flux.
Try Roe's flux. Here is a f90 subroutine:
http://www.ossanworld.com/cfdbooks/cfdcodes/twod_euler_fluxes_v2.f90
which is known to be accurate enough for...

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