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added example for meeting

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This commit is contained in:
philippun 2023-08-22 13:32:02 +02:00
parent fb397897c8
commit 9d695b3aa8
4 changed files with 59 additions and 5 deletions
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2
examples/CMakeLists.txt
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@ -7,6 +7,7 @@ add_executable(BTCS_1D_proto_example BTCS_1D_proto_example.cpp)
add_executable(BTCS_2D_proto_example BTCS_2D_proto_example.cpp)
add_executable(FTCS_2D_proto_example_mdl FTCS_2D_proto_example_mdl.cpp)
add_executable(reference-FTCS_2D_closed reference-FTCS_2D_closed.cpp)
add_executable(meeting_example meeting_example.cpp)
target_link_libraries(first_example tug)
target_link_libraries(second_example tug)
target_link_libraries(boundary_example1D tug)
@ -16,6 +17,7 @@ target_link_libraries(BTCS_1D_proto_example tug)
target_link_libraries(BTCS_2D_proto_example tug)
target_link_libraries(FTCS_2D_proto_example_mdl tug)
target_link_libraries(reference-FTCS_2D_closed tug)
target_link_libraries(meeting_example tug)
# target_link_libraries(FTCS_2D_proto_example easy_profiler)
add_executable(FTCS_2D_proto_closed_mdl FTCS_2D_proto_closed_mdl.cpp)

38
examples/meeting_example.cpp Normal file
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@ -0,0 +1,38 @@
#include "tug/Boundary.hpp"
#include <tug/Simulation.hpp>
int main(int argc, char *argv[]) {
int row = 20;
int col = 30;
// grid
Grid grid = Grid(row,col);
MatrixXd concentrations = MatrixXd::Constant(row,col,0);
concentrations(10,4) = 2000;
grid.setConcentrations(concentrations);
MatrixXd alphaX = MatrixXd::Constant(row,col,1);
for (int i = 0; i < row; i++) {
alphaX(i,0) = 0.05;
}
MatrixXd alphaY = MatrixXd::Constant(row,col,1);
grid.setAlpha(alphaX, alphaY);
// boundary
Boundary bc = Boundary(grid);
bc.setBoundarySideConstant(BC_SIDE_LEFT, 0);
bc.setBoundarySideConstant(BC_SIDE_RIGHT, 0);
bc.setBoundarySideConstant(BC_SIDE_TOP, 0);
bc.setBoundarySideConstant(BC_SIDE_BOTTOM, 0);
bc.setBoundaryElementClosed(BC_SIDE_LEFT, 3);
bc.setBoundaryElementClosed(BC_SIDE_LEFT, 4);
bc.setBoundaryElementClosed(BC_SIDE_LEFT, 5);
bc.setBoundaryElementConstant(BC_SIDE_BOTTOM, 17, 100);
// simulation
Simulation sim = Simulation(grid, bc, BTCS_APPROACH);
sim.setTimestep(0.1);
sim.setIterations(100);
sim.setOutputCSV(CSV_OUTPUT_XTREME);
sim.run();
}

2
src/BTCSv2.cpp
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@ -342,7 +342,7 @@ static void BTCS_2D(Grid &grid, Boundary &bc, double &timestep) {
for (int i = 0; i < colMax; i++) {
// swap alphas, boundary conditions and sx/sy for column-wise calculation
A = createCoeffMatrix(alphaY, bcLeft, bcRight, rowMax, i, sy);
A = createCoeffMatrix(alphaY, bcTop, bcBottom, rowMax, i, sy);
b = createSolutionVector(concentrations_t1, alphaY, alphaX, bcTop, bcBottom,
bcLeft, bcRight, rowMax, i, sy, sx);
row_t1 = solve(A, b);

22
src/Boundary.cpp
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@ -64,22 +64,36 @@ void Boundary::setBoundarySideClosed(BC_SIDE side) {
if(grid.getDim() == 1){
if((side == BC_SIDE_BOTTOM) || (side == BC_SIDE_TOP)){
throw_invalid_argument(
"For the one-dimensional trap, only the BC_SIDE_LEFT and "
"For the one-dimensional case, only the BC_SIDE_LEFT and "
"BC_SIDE_RIGHT borders exist.");
}
}
this->boundaries[side] = vector<BoundaryElement>(grid.getRow(), BoundaryElement());
int n;
if (side == BC_SIDE_LEFT || side == BC_SIDE_RIGHT) {
n = grid.getRow();
} else {
n = grid.getCol();
}
this->boundaries[side] = vector<BoundaryElement>(n, BoundaryElement());
}
void Boundary::setBoundarySideConstant(BC_SIDE side, double value) {
if(grid.getDim() == 1){
if((side == BC_SIDE_BOTTOM) || (side == BC_SIDE_TOP)){
throw_invalid_argument(
"For the one-dimensional trap, only the BC_SIDE_LEFT and "
"For the one-dimensional case, only the BC_SIDE_LEFT and "
"BC_SIDE_RIGHT borders exist.");
}
}
this->boundaries[side] = vector<BoundaryElement>(grid.getRow(), BoundaryElement(value));
int n;
if (side == BC_SIDE_LEFT || side == BC_SIDE_RIGHT) {
n = grid.getRow();
} else {
n = grid.getCol();
}
this->boundaries[side] = vector<BoundaryElement>(n, BoundaryElement(value));
}
void Boundary::setBoundaryElementClosed(BC_SIDE side, int index) {