File serial_tri.hxx#

class LaplaceSerialTri : public Laplacian#

Public Functions

LaplaceSerialTri(Options *opt = nullptr, const CELL_LOC loc = CELL_CENTRE, Mesh *mesh_in = nullptr, Solver *solver = nullptr)#
inline ~LaplaceSerialTri()#
inline virtual void setCoefA(const Field2D &val) override#

Set coefficients for inversion. Re-builds matrices if necessary.

inline virtual void setCoefC(const Field2D &val) override#
inline virtual void setCoefD(const Field2D &val) override#
inline virtual void setCoefEx(const Field2D &val) override#
inline virtual void setCoefEz(const Field2D &val) override#
virtual FieldPerp solve(const FieldPerp &b) override#
virtual FieldPerp solve(const FieldPerp &b, const FieldPerp &x0) override#

Solve Ax=b for x given b

This function will

  1. Take the fourier transform of the y-slice given in the input

  2. For each fourier mode a) Set up the tridiagonal matrix b) Call the solver which inverts the matrix Ax_mode = b_mode

  3. Collect all the modes in a 2D array

  4. 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.

Private Members

Field2D A#
Field2D C#
Field2D D#