File serial_tri.hxx¶
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class LaplaceSerialTri : public Laplacian¶
Public Functions
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LaplaceSerialTri(Options *opt = nullptr, const CELL_LOC loc = CELL_CENTRE, Mesh *mesh_in = nullptr, Solver *solver = nullptr, Datafile *dump = nullptr)¶
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inline ~LaplaceSerialTri()¶
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inline virtual void setCoefA(const Field2D &val) override¶
Set coefficients for inversion. Re-builds matrices if necessary.
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virtual FieldPerp solve(const FieldPerp &b, const FieldPerp &x0) override¶
Solve Ax=b for x given b
This function will
Take the fourier transform of the y-slice given in the input
For each fourier mode a) Set up the tridiagonal matrix b) Call the solver which inverts the matrix Ax_mode = b_mode
Collect all the modes in a 2D array
Back transform the y-slice
Input:
- Parameters
b – [in] A 2D variable that will be fourier decomposed, each fourier mode of this variable is going to be the right hand side of the equation Ax = b
x0 – [in] Variable used to set BC (if the right flags are set, see the user manual)
- Returns
The inverted variable.
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LaplaceSerialTri(Options *opt = nullptr, const CELL_LOC loc = CELL_CENTRE, Mesh *mesh_in = nullptr, Solver *solver = nullptr, Datafile *dump = nullptr)¶