vcbferreira/NuFI_deal.ii
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advanced with new splines, updated readme todo

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This commit is contained in:
Vasco C. B. Ferreira
2026-03-11 21:01:43 +01:00
parent fb75d4d31d
commit 61599fbce0
5 changed files with 219 additions and 16 deletions
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nufi_solver.hpp
+14 -13
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@@ -15,7 +15,8 @@
#include "parameters.hpp"
#include "poisson_problem.hpp"
#include "fields.hpp" // holds f0(x,v), and compute_rho(x)
#include "spline_field.hpp"
#include "spline_field.hpp" // old GPT splines
#include "splines.hpp" //new splines
using namespace dealii;
@@ -25,9 +26,9 @@ public:
NuFISolver();
void run();
double eval_rho(unsigned int n, double x, const UniformSpline1D<double,4>& E_spline, unsigned int Nv = Parameters::NV);
double eval_ftilda(unsigned int n, double x, double u, const UniformSpline1D<double, 4>& E_spline);
void save_ftilda(unsigned int n, const UniformSpline1D<double,4>& E_spline, unsigned int Nx_out, unsigned int Nv_out, const std::string &filename);
double eval_rho(unsigned int n, double x, const std::vector<double> E_coeffs, unsigned int Nv = Parameters::NV);
double eval_ftilda(unsigned int n, double x, double u, const std::vector<double> E_coeffs);
void save_ftilda(unsigned int n, const std::vector<double> E_coeffs, unsigned int Nx_out, unsigned int Nv_out, const std::string &filename);
private:
@@ -50,7 +51,7 @@ private:
inline double NuFISolver::eval_ftilda(unsigned int n,
double x,
double u,
const UniformSpline1D<double, 4>& E_spline)
const std::vector<double> E_coeffs)
{
double Lu = std::abs(Parameters::V_DOMAIN_LEFT - Parameters::V_DOMAIN_RIGHT);
@@ -78,7 +79,7 @@ inline double NuFISolver::eval_ftilda(unsigned int n,
inline double NuFISolver::eval_rho(const unsigned int n,
const double x,
const UniformSpline1D<double, 4>& E_spline,
const std::vector<double> E_coeffs,
const unsigned int Nv)
{
const double dv = (Parameters::V_DOMAIN_RIGHT - Parameters::V_DOMAIN_LEFT) / Nv;
@@ -97,25 +98,25 @@ inline double NuFISolver::eval_rho(const unsigned int n,
class ChargeDensity_NuFI : public Function<1>
{
public:
ChargeDensity_NuFI(NuFISolver &solver, size_t n, const UniformSpline1D<double,4> &E_spline)
: solver(solver), n(n), E_spline(E_spline) {}
ChargeDensity_NuFI(NuFISolver &solver, size_t n, const std::vector<double> E_coeffs)
: solver(solver), n(n), E_coeffs(E_coeffs) {}
virtual double value(const Point<1> &p,
[[maybe_unused]] const unsigned int component = 0) const override
{
double x = p[0];
return solver.eval_rho(n, x, E_spline);
return solver.eval_rho(n, x, E_coeffs);
}
private:
NuFISolver &solver;
size_t n;
const UniformSpline1D<double, 4> &E_spline;
const std::vector<double> E_coeffs;
};
inline void NuFISolver::save_ftilda(unsigned int n,
const UniformSpline1D<double,4>& E_spline,
const std::vector<double> E_coeffs,
unsigned int Nx_out,
unsigned int Nv_out,
const std::string &filename)
@@ -176,7 +177,7 @@ inline void NuFISolver::run()
E_grid[i] = 0;
}
UniformSpline1D<double,4> E_spline(E_grid, Parameters::X_DOMAIN_LEFT, Parameters::X_DOMAIN_RIGHT);
std::vector<double> E_coeffs(E_grid, Parameters::X_DOMAIN_LEFT, Parameters::X_DOMAIN_RIGHT); // Needs correction
for (unsigned int it = 0; it < Nt; ++it)
{
@@ -212,7 +213,7 @@ inline void NuFISolver::run()
E_grid = poisson.sample_electric_field(poisson, Nx, 0.0, Lx);
E_spline = UniformSpline1D<double, 4>(E_grid, 0.0, Lx);
E_spline = std::vector<double> E_coeffs; // needs correction
}
std::cout << "NuFI simulation finished.\n";