e482d71779
BREAKING CHANGE: Functionality is now provided by function calls and scheme generation is decoupled from LEqS solving.
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
#ifndef DIFFUSION_H_
|
|
#define DIFFUSION_H_
|
|
|
|
#include "BoundaryCondition.hpp"
|
|
#include <Eigen/Dense>
|
|
#include <Eigen/Sparse>
|
|
#include <array>
|
|
#include <bits/stdint-uintn.h>
|
|
#include <vector>
|
|
|
|
namespace tug {
|
|
namespace diffusion {
|
|
|
|
/**
|
|
* Defines grid dimensions and boundary conditions.
|
|
*/
|
|
typedef struct {
|
|
uint32_t grid_cells[3];
|
|
double domain_size[3];
|
|
bc::BoundaryCondition *bc;
|
|
} TugGrid;
|
|
|
|
/**
|
|
* Besides containing the grid structure it holds also information about the
|
|
* desired time step to simulate and which solver to use.
|
|
*/
|
|
typedef struct {
|
|
double time_step;
|
|
Eigen::VectorXd (*solver)(Eigen::SparseMatrix<double>, Eigen::VectorXd);
|
|
TugGrid grid;
|
|
} TugInput;
|
|
|
|
/**
|
|
* Solving 1D diffusion problems with Backward Time Centred Space scheme.
|
|
*
|
|
* \param input_param Object with information for the simulation e.g. grid
|
|
* dimensions, time step ...
|
|
*
|
|
* \param field Pointer to continious memory holding the concentrations for each
|
|
* grid cell of the grid. It doesn't matter if stored in row (most likely) or
|
|
* column major.
|
|
*
|
|
* \param alpha Pointer to continious memory holding the alpha for each grid
|
|
* cell of the grid. (NOTE: only constant alphas are supported currently)
|
|
*
|
|
* \return Runtime in seconds
|
|
*/
|
|
auto BTCS_1D(const TugInput &input_param, double *field, const double *alpha)
|
|
-> double;
|
|
|
|
/**
|
|
* Solving 2D diffusion problems with Alternating-direction implicit method.
|
|
*
|
|
* \param input_param Object with information for the simulation e.g. grid
|
|
* dimensions, time step ...
|
|
*
|
|
* \param field Pointer to continious memory holding the concentrations for each
|
|
* grid cell of the grid. It doesn't matter if stored in row (most likely) or
|
|
* column major.
|
|
*
|
|
* \param alpha Pointer to continious memory holding the alpha for each grid
|
|
* cell of the grid. (NOTE: only constant alphas are supported currently)
|
|
*
|
|
* \return Runtime in seconds
|
|
*/
|
|
auto ADI_2D(const TugInput &input_param, double *field, const double *alpha)
|
|
-> double;
|
|
|
|
} // namespace diffusion
|
|
} // namespace tug
|
|
|
|
#endif // DIFFUSION_H_
|