07_field_modifiers.cpp File Reference

Comprehensive examples of the FieldModifier API. More...

#include <cmath>
#include <iostream>
#include <memory>
#include <mpi.h>
#include <openpfc/openpfc.hpp>

Include dependency graph for 07_field_modifiers.cpp:

Classes
class	GaussianIC
	Custom field modifier: Gaussian initial condition. More...
class	DirichletBC
	Custom boundary condition: Fixed Dirichlet BC at right boundary. More...
class	OscillatingBC
	Space-time varying BC: Oscillating left boundary. More...

Functions
void	print_section (const std::string &title)
void	demo_custom_initial_condition ()
void	demo_boundary_condition ()
void	demo_space_time_bc ()
void	demo_composition ()
	Demonstrate composition of multiple field modifiers.
int	main (int argc, char **argv)

Detailed Description

Comprehensive examples of the FieldModifier API.

This example demonstrates:

1. Creating custom initial conditions
2. Creating custom boundary conditions
3. Space-time varying boundary conditions
4. Composing multiple modifiers

Compile and run: mpicxx -std=c++17 -I/path/to/openpfc/include 07_field_modifiers.cpp \ -L/path/to/openpfc/lib -lopenpfc -lheffte -o 07_field_modifiers mpirun -np 4 ./07_field_modifiers

Function Documentation

demo_composition()

void demo_composition

(

)

Demonstrate composition of multiple field modifiers.

This shows how to combine:

• Constant background IC
• Localized perturbation IC
• Boundary conditions

Modifiers are applied in sequence, each building on the previous.

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