b6eb212bcb
It is possible to define inner grid cells with a type of either CLOSED, FLUX, CLOSED or UNSET.
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
#include "diffusion/BTCSBoundaryCondition.hpp"
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#include <diffusion/BTCSDiffusion.hpp>
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#include <iomanip>
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#include <iostream> // for std
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#include <vector> // for vector
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using namespace std;
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using namespace Diffusion;
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int main(int argc, char *argv[]) {
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// dimension of grid
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int dim = 1;
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int n = 20;
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// create input + diffusion coefficients for each grid cell
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std::vector<double> alpha(n, 1e-1);
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std::vector<double> field(n, 1e-6);
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BTCSBoundaryCondition bc(n);
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// create instance of diffusion module
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BTCSDiffusion diffu(dim);
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diffu.setXDimensions(1, n);
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// set the boundary condition for the left ghost cell to dirichlet
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bc(BC_SIDE_LEFT) = {BC_TYPE_CONSTANT, 5e-6};
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// bc[0] = {Diffusion::BC_CONSTANT, 5e-6};
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// diffu.setBoundaryCondition(1, 0, BTCSDiffusion::BC_CONSTANT,
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// 5. * std::pow(10, -6));
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// set timestep for simulation to 1 second
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diffu.setTimestep(1.);
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cout << setprecision(12);
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// loop 100 times
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// output is currently generated by the method itself
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for (int i = 0; i < 100; i++) {
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diffu.simulate(field.data(), alpha.data(), bc);
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cout << "Iteration: " << i << "\n\n";
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for (auto &cell : field) {
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cout << cell << "\n";
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}
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cout << "\n" << endl;
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}
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return 0;
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}
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