two_d_linear_wave_flux.cc File Reference

#include "generic.h"
#include "linear_wave.h"
#include "meshes/rectangular_quadmesh.h"

Classes
class	LinearWaveProblem< ELEMENT, TIMESTEPPER >
	LinearWave problem in rectanglular domain. More...

Namespaces
	TanhSolnForLinearWave

Functions
double	TanhSolnForLinearWave::exact_u (const double &time, const Vector< double > &x)
	Exact solution. More...
double	TanhSolnForLinearWave::exact_dudt (const double &time, const Vector< double > &x)
	1st time-deriv of exact solution More...
double	TanhSolnForLinearWave::exact_d2udt2 (const double &time, const Vector< double > &x)
	2nd time-deriv of exact solution More...
void	TanhSolnForLinearWave::get_exact_u (const double &time, const Vector< double > &x, Vector< double > &u)
	Exact solution as a vector. More...
void	TanhSolnForLinearWave::get_source (const double &time, const Vector< double > &x, double &source)
	Source function to make it an exact solution. More...
void	TanhSolnForLinearWave::get_exact_gradient (const double &time, const Vector< double > &x, Vector< double > &dudx)
	Gradient of exact solution. More...
void	TanhSolnForLinearWave::prescribed_flux_on_fixed_y_boundary (const double &time, const Vector< double > &x, double &flux)
	Prescribed flux on a fixed y max boundary. More...
int	main (int argc, char *argv[])
	Demonstrate how to solve LinearWave problem. More...

Function Documentation

main()

int main	(	int argc	,
		char *	argv[]
	)

Demonstrate how to solve LinearWave problem.

///////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////

{
 
 // Store command line arguments
 CommandLineArgs::setup(argc,argv);
 
 // Pointer to source function
 LinearWaveEquations<2>::LinearWaveSourceFctPt source_fct_pt=
  &TanhSolnForLinearWave::get_source;
 
 // Number of elements in x direction
 unsigned n_x=10;
 
 // Number of elements in y direction
 unsigned n_y=20;
 
 // Build problem
 LinearWaveProblem<QLinearWaveElement<2,3>, Newmark<1> >
  problem(n_x,n_y,source_fct_pt);
 
 // Run it
 problem.unsteady_run();
 
 
}; // end of main

References TanhSolnForLinearWave::get_source(), problem, Flag_definition::setup(), and oomph::source_fct_pt().