PetscDSGetRiemannSolver#

Returns the Riemann solver for the given field

Synopsis#

#include "petscds.h" 
PetscErrorCode PetscDSGetRiemannSolver(PetscDS ds, PetscInt f, void (**r)(PetscInt dim, PetscInt Nf, const PetscReal x[], const PetscReal n[], const PetscScalar uL[], const PetscScalar uR[], PetscInt numConstants, const PetscScalar constants[], PetscScalar flux[], void *ctx))

Not collective

Input Parameters#

  • ds - The PetscDS object

  • f - The field number

Output Parameter#

  • r - Riemann solver

Calling sequence for r#

  r(PetscInt dim, PetscInt Nf, const PetscReal x[], const PetscReal n[], const PetscScalar uL[], const PetscScalar uR[], PetscScalar flux[], void *ctx)
  • dim - The spatial dimension

  • Nf - The number of fields

  • x - The coordinates at a point on the interface

  • n - The normal vector to the interface

  • uL - The state vector to the left of the interface

  • uR - The state vector to the right of the interface

  • flux - output array of flux through the interface

  • numConstants - number of constant parameters

  • constants - constant parameters

  • ctx - optional user context

See Also#

PetscDS, PetscDSSetRiemannSolver()

Level#

intermediate

Location#

src/dm/dt/interface/dtds.c


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