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update & fixes to sf_pml to support z-direction pml in clyindrical coords

pull/1/head
Thorsten Liebig 2010-07-29 18:32:57 +02:00
parent 8316b1c2bd
commit 3d1c7f22b9
2 changed files with 61 additions and 25 deletions
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84
FDTD/operator_ext_pml_sf.cpp
View File

@ -17,6 +17,7 @@
#include "operator_ext_pml_sf.h" #include "operator_ext_pml_sf.h"
#include "engine_ext_pml_sf.h" #include "engine_ext_pml_sf.h"
#include "operator_cylinder.h"
#include "tools/array_ops.h" #include "tools/array_ops.h"
@ -126,18 +127,32 @@ bool Operator_Ext_PML_SF::BuildExtension()
for (pos[2]=0;pos[2]<m_numLines[2];++pos[2]) for (pos[2]=0;pos[2]<m_numLines[2];++pos[2])
{ {
Calc_ECPos(0,n,pos,inEC); Calc_ECPos(0,n,pos,inEC);
GetVV(0,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[1]/2/inEC[0])/(1+dT*inEC[1]/2/inEC[0]); if (inEC[0]>0)
GetII(0,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[3]/2/inEC[2])/(1+dT*inEC[3]/2/inEC[2]); GetVV(0,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[1]/2/inEC[0])/(1+dT*inEC[1]/2/inEC[0]);
if (inEC[2]>0)
GetII(0,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[3]/2/inEC[2])/(1+dT*inEC[3]/2/inEC[2]);
GetVI(0,n,pos[0],pos[1],pos[2]) = (dT/inEC[0])/(1+dT*inEC[1]/2/inEC[0]); if (inEC[0]>0)
GetIV(0,n,pos[0],pos[1],pos[2]) = (dT/inEC[2])/(1+dT*inEC[3]/2/inEC[2]); GetVI(0,n,pos[0],pos[1],pos[2]) = (dT/inEC[0])/(1+dT*inEC[1]/2/inEC[0]);
if (inEC[2]>0)
GetIV(0,n,pos[0],pos[1],pos[2]) = (dT/inEC[2])/(1+dT*inEC[3]/2/inEC[2]);
// if (n==0)
// cerr << pos[0] << " " << pos[1] << " " << pos[2] << " " << inEC[1] << endl;
Calc_ECPos(1,n,pos,inEC); Calc_ECPos(1,n,pos,inEC);
GetVV(1,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[1]/2/inEC[0])/(1+dT*inEC[1]/2/inEC[0]); if (inEC[0]>0)
GetII(1,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[3]/2/inEC[2])/(1+dT*inEC[3]/2/inEC[2]); GetVV(1,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[1]/2/inEC[0])/(1+dT*inEC[1]/2/inEC[0]);
if (inEC[2]>0)
GetII(1,n,pos[0],pos[1],pos[2]) = (1-dT*inEC[3]/2/inEC[2])/(1+dT*inEC[3]/2/inEC[2]);
GetVI(1,n,pos[0],pos[1],pos[2]) = (dT/inEC[0])/(1+dT*inEC[1]/2/inEC[0]); if (inEC[0]>0)
GetIV(1,n,pos[0],pos[1],pos[2]) = (dT/inEC[2])/(1+dT*inEC[3]/2/inEC[2]); GetVI(1,n,pos[0],pos[1],pos[2]) = (dT/inEC[0])/(1+dT*inEC[1]/2/inEC[0]);
if (inEC[2]>0)
GetIV(1,n,pos[0],pos[1],pos[2]) = (dT/inEC[2])/(1+dT*inEC[3]/2/inEC[2]);
// if (n==0)
// cerr << pos[0] << " " << pos[1] << " " << pos[2] << " " << inEC[1] << endl;
} }
} }
} }
@ -206,13 +221,8 @@ double Operator_Ext_PML_SF_Plane::GetNodeArea(int ny, unsigned int pos[3], bool
{ {
unsigned int l_pos[] = {pos[0],pos[1],pos[2]}; unsigned int l_pos[] = {pos[0],pos[1],pos[2]};
l_pos[m_ny] = m_LineNr; l_pos[m_ny] = m_LineNr;
if (ny==m_ny)
return m_Op->GetMeshDelta(m_nyP,l_pos,dualMesh)*m_Op->GetMeshDelta(m_nyPP,l_pos,dualMesh); return m_Op->GetNodeArea(ny,l_pos,dualMesh);
if (ny==m_nyP)
return m_Op->GetMeshDelta(m_ny,l_pos,dualMesh)*m_Op->GetMeshDelta(m_nyPP,l_pos,dualMesh);
if (ny==m_nyPP)
return m_Op->GetMeshDelta(m_nyP,l_pos,dualMesh)*m_Op->GetMeshDelta(m_ny,l_pos,dualMesh);
return 0.0;
} }
double Operator_Ext_PML_SF_Plane::GetNodeLength(int ny, unsigned int pos[3], bool dualMesh) const double Operator_Ext_PML_SF_Plane::GetNodeLength(int ny, unsigned int pos[3], bool dualMesh) const
@ -245,8 +255,6 @@ bool Operator_Ext_PML_SF_Plane::Calc_ECPos(int nP, int n, unsigned int* pos, dou
double inMat[4]; double inMat[4];
m_Op->Calc_EffMatPos(n,l_pos,inMat); m_Op->Calc_EffMatPos(n,l_pos,inMat);
UNUSED(nP);
double Zm = sqrt(inMat[2] / inMat[0]); // Zm = sqrt(mue/eps) double Zm = sqrt(inMat[2] / inMat[0]); // Zm = sqrt(mue/eps)
double kappa = 0; double kappa = 0;
double sigma = 0; double sigma = 0;
@ -265,15 +273,23 @@ bool Operator_Ext_PML_SF_Plane::Calc_ECPos(int nP, int n, unsigned int* pos, dou
kappa = GetKappaGraded(depth) / Zm ; kappa = GetKappaGraded(depth) / Zm ;
sigma = GetKappaGraded(depth-0.5*m_pml_delta) * Zm; sigma = GetKappaGraded(depth-0.5*m_pml_delta) * Zm;
} }
// if ((pos[0]==0) && (pos[1]==0)) if ((inMat[0]<=0) || (inMat[2]<=0)) //check if material properties are valid (necessary for cylindrical coords)
// cerr << n << "\t" << pos[m_ny] << "\t"<< depth << "\t" << kappa << "\t" << sigma << endl; {
kappa = sigma = 0;
}
} }
inEC[0] = inMat[0] * GetNodeArea(n,pos) / GetNodeLength(n,pos); double geomFactor = GetNodeArea(n,pos) / GetNodeLength(n,pos);
inEC[1] = (inMat[1]+kappa) * GetNodeArea(n,pos) / GetNodeLength(n,pos); if (geomFactor<=0 || isnan(geomFactor) || isinf(geomFactor)) //check if geomFactor is positive, not zero and a valid number (necessary for cylindrical coords)
geomFactor = 0;
inEC[0] = inMat[0] * geomFactor;
inEC[1] = (inMat[1]+kappa) * geomFactor;
inEC[2] = inMat[2] * GetNodeArea(n,pos,true) / GetNodeLength(n,pos,true); geomFactor = GetNodeArea(n,pos) / GetNodeLength(n,pos);
inEC[3] = (inMat[3]+sigma) * GetNodeArea(n,pos,true) / GetNodeLength(n,pos,true); if (geomFactor<=0 || isnan(geomFactor) || isinf(geomFactor)) //check if geomFactor is positive, not zero and a valid number (necessary for cylindrical coords)
geomFactor = 0;
inEC[2] = inMat[2] * geomFactor;
inEC[3] = (inMat[3]+sigma) * geomFactor;
return true; return true;
} }
@ -344,11 +360,31 @@ Engine_Extension* Operator_Ext_PML_SF_Plane::CreateEngineExtention()
return eng_ext; return eng_ext;
} }
bool Operator_Ext_PML_SF_Plane::IsCylinderCoordsSave() const
{
if (m_ny==2)
{
Operator_Cylinder* op_cyl = dynamic_cast<Operator_Cylinder*>(m_Op);
if (op_cyl==NULL)
{
cerr << "Operator_Ext_PML_SF_Plane::IsCylinderCoordsSave(): Error!!! Sanity check failed!!! ==> Developer is not sane.... this should never have happend.. exit..." << endl;
exit(0);
}
if (op_cyl->GetClosedAlpha())
{
cerr << "Operator_Ext_PML_SF_Plane::IsCylinderCoordsSave(): Warning... this extension can not handle a closed alpha cylinder operator... " << endl;
return false;
}
return true;
}
return false;
}
void Operator_Ext_PML_SF_Plane::ShowStat(ostream &ostr) const void Operator_Ext_PML_SF_Plane::ShowStat(ostream &ostr) const
{ {
Operator_Extension::ShowStat(ostr); Operator_Extension::ShowStat(ostr);
string XYZ[3] = {"x","y","z"}; string XYZ[3] = {"x","y","z"};
string top_bot[2] = {"top", "bottom"}; string top_bot[2] = {"bottom", "top"};
ostr << " Active direction\t: " << XYZ[m_ny] << " (" << top_bot[m_top] << ")" << endl; ostr << " Active direction\t: " << XYZ[m_ny] << " (" << top_bot[m_top] << ")" << endl;
ostr << " PML width (cells)\t: " << m_numLines[m_ny] << endl; ostr << " PML width (cells)\t: " << m_numLines[m_ny] << endl;
} }

2
FDTD/operator_ext_pml_sf.h
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@ -94,7 +94,7 @@ public:
virtual Engine_Extension* CreateEngineExtention(); virtual Engine_Extension* CreateEngineExtention();
virtual bool IsCylinderCoordsSave() const {return false;} virtual bool IsCylinderCoordsSave() const;
virtual string GetExtensionName() const {return string("Split Field PML Plane Extension");} virtual string GetExtensionName() const {return string("Split Field PML Plane Extension");}