vcbferreira/NuFI_deal.ii
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corrected results output, E is 0 all the time everywhere??

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Vasco C. B. Ferreira
2026-03-14 18:34:48 +01:00
parent 70e67e2702
commit eadf717dfc
3 changed files with 316 additions and 58 deletions
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nufi_solver.hpp
+59 -1
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@@ -27,7 +27,10 @@ public:
void run();
double eval_rho(unsigned int n, double x, const double *E_coeffs, unsigned int Nv = Parameters::NV);
double eval_ftilda(unsigned int n, double x, double u, const double *E_coeffs);
void save_ftilda(unsigned int n, const double *E_coeffs, unsigned int Nx_out, unsigned int Nv_out, const std::string &filename);
void save_rho(unsigned int n, const double *E_coeffs, unsigned int Nx_out, const std::string &filename);
void save_Efield(unsigned int n, const double *E_coeffs, unsigned int Nx_out, const std::string &filename);
private:
@@ -165,6 +168,60 @@ inline void NuFISolver::save_ftilda(unsigned int n,
file.close();
}
inline void NuFISolver::save_rho(unsigned int n,
const double *E_coeffs,
unsigned int Nx_out,
const std::string &filename)
{
std::ofstream file(filename);
double xmin = Parameters::X_DOMAIN_LEFT;
double xmax = Parameters::X_DOMAIN_RIGHT;
double dx = (xmax - xmin) / Nx_out;
file << Nx_out << "\n";
file << xmin << " " << xmax << "\n";
for (unsigned int i = 0; i < Nx_out; ++i, xmin += dx)
{
double val = eval_rho(n, xmin, E_coeffs);
file << val;
file << "\n";
}
file.close();
}
inline void NuFISolver::save_Efield(unsigned int n,
const double *E_coeffs,
unsigned int Nx_out,
const std::string &filename)
{
std::ofstream file(filename);
double xmin = Parameters::X_DOMAIN_LEFT;
double xmax = Parameters::X_DOMAIN_RIGHT;
double dx = (xmax - xmin) / Nx_out;
// select from E_coeffs
const size_t stride_x = 1;
const size_t stride_t = stride_x*(Parameters::SPLINE_NX + Parameters::SPLINE_ORDER - 1);
const double *c;
c = E_coeffs + n*stride_t;
file << Nx_out << "\n";
file << xmin << " " << xmax << "\n";
for (unsigned int i = 0; i < Nx_out; ++i, xmin += dx)
{
double val = -eval<1>(xmin, c);
file << val;
file << "\n";
}
file.close();
}
inline void NuFISolver::run()
{
std::cout << "Building E_sline\n\n";
@@ -220,7 +277,8 @@ inline void NuFISolver::run()
{
std::cout << "Saving results... \n\n";
save_ftilda(it, coeffs.get(), 128, 128, "results/ftilda_" + std::to_string(it) + ".dat");
poisson.output_results(it);
save_rho(it, coeffs.get(), 128, "results/rho_" + std::to_string(it) + ".dat");
save_Efield(it, coeffs.get(), 128, "results/field_" + std::to_string(it) + ".dat");
}
}