Classes | Namespaces | Functions | Variables
scattering.cc File Reference

Go to the source code of this file.

Classes

class  ScatteringProblem< ELEMENT >
 ////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////// More...
 

Namespaces

namespace  GlobalParameters
 ////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////
 

Functions

std::complex< double > GlobalParameters::I (0.0, 1.0)
 Imaginary unit. More...
 
void GlobalParameters::get_exact_u (const Vector< double > &x, Vector< double > &u)
 Exact solution for scattered field (vector returns real and impaginary parts). More...
 
void GlobalParameters::prescribed_incoming_flux (const Vector< double > &x, complex< double > &flux)
 Flux (normal derivative) on the unit disk for a planar incoming wave. More...
 
int main (int argc, char **argv)
 Solve 2D Helmholtz problem for scattering of a planar wave from a unit disk. More...
 

Variables

double GlobalParameters::K_squared =10.0
 Square of the wavenumber. More...
 
unsigned GlobalParameters::N_fourier =10
 Number of terms used in the computation of the exact solution. More...
 
bool GlobalParameters::DtN_BC =false
 Flag to choose the Dirichlet to Neumann BC or ABC BC. More...
 
unsigned GlobalParameters::ABC_order =3
 Flag to choose wich order to use. More...
 
double GlobalParameters::Outer_radius =1.5
 Radius of outer boundary (must be a circle!) More...
 

Function Documentation

◆ main()

int main ( int  argc,
char **  argv 
)

Solve 2D Helmholtz problem for scattering of a planar wave from a unit disk.

Definition at line 709 of file scattering.cc.

References GlobalParameters::ABC_order, ScatteringProblem< ELEMENT >::doc_solution(), and GlobalParameters::DtN_BC.