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sf_pml: moved Zm into GetKappaGraded

pull/1/head
Thorsten Liebig 2010-07-30 15:29:19 +02:00
parent e85f8ef8b7
commit b2ac68d835
2 changed files with 10 additions and 9 deletions
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15
FDTD/operator_ext_pml_sf.cpp
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@ -235,7 +235,7 @@ double Operator_Ext_PML_SF_Plane::GetNodeLength(int ny, unsigned int pos[3], boo
return m_Op->GetMeshDelta(ny,l_pos,dualMesh); return m_Op->GetMeshDelta(ny,l_pos,dualMesh);
} }
double Operator_Ext_PML_SF_Plane::GetKappaGraded(double depth) const double Operator_Ext_PML_SF_Plane::GetKappaGraded(double depth, double Zm) const
{ {
if (depth<0) if (depth<0)
return 0.0; return 0.0;
@ -244,7 +244,7 @@ double Operator_Ext_PML_SF_Plane::GetKappaGraded(double depth) const
double g = 2.5; double g = 2.5;
double R0 = 1e-6; double R0 = 1e-6;
double kappa0 = -log(R0)*log(g)/(2*m_pml_delta * pow(g,m_pml_width/m_pml_delta) -1); double kappa0 = -log(R0)*log(g)/(2*m_pml_delta * pow(g,m_pml_width/m_pml_delta) -1);
return pow(g,depth/m_pml_delta)*kappa0; return pow(g,depth/m_pml_delta)*kappa0 / Zm;
} }
bool Operator_Ext_PML_SF_Plane::Calc_ECPos(int nP, int n, unsigned int* pos, double* inEC) const bool Operator_Ext_PML_SF_Plane::Calc_ECPos(int nP, int n, unsigned int* pos, double* inEC) const
@ -255,7 +255,8 @@ 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);
double Zm = sqrt(inMat[2] / inMat[0]); // Zm = sqrt(mue/eps) double Zm2 = inMat[2] / inMat[0]; // Zm^2 = mue/eps
double Zm = sqrt(Zm2); // Zm = sqrt(Zm^2) = sqrt(mue/eps)
double kappa = 0; double kappa = 0;
double sigma = 0; double sigma = 0;
double depth = 0; double depth = 0;
@ -264,14 +265,14 @@ bool Operator_Ext_PML_SF_Plane::Calc_ECPos(int nP, int n, unsigned int* pos, dou
if (m_top) if (m_top)
{ {
depth = pos[m_ny]*m_pml_delta - 0.5*m_pml_delta; depth = pos[m_ny]*m_pml_delta - 0.5*m_pml_delta;
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) * Zm2;
} }
else else
{ {
depth = m_pml_width - (pos[m_ny])*m_pml_delta; depth = m_pml_width - (pos[m_ny])*m_pml_delta;
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) * Zm2;
} }
if ((inMat[0]<=0) || (inMat[2]<=0)) //check if material properties are valid (necessary for cylindrical coords) if ((inMat[0]<=0) || (inMat[2]<=0)) //check if material properties are valid (necessary for cylindrical coords)
{ {

4
FDTD/operator_ext_pml_sf.h
View File

@ -43,7 +43,7 @@ public:
virtual double GetNodeLength(int ny, unsigned int pos[3], bool dualMesh = false) const {UNUSED(ny);UNUSED(pos);UNUSED(dualMesh);return 0.0;} virtual double GetNodeLength(int ny, unsigned int pos[3], bool dualMesh = false) const {UNUSED(ny);UNUSED(pos);UNUSED(dualMesh);return 0.0;}
//! This will resturn the pml parameter grading //! This will resturn the pml parameter grading
virtual double GetKappaGraded(double depth) const {UNUSED(depth);return 0.0;} virtual double GetKappaGraded(double depth, double Zm) const {UNUSED(depth);UNUSED(Zm);return 0.0;}
virtual bool BuildExtension(); virtual bool BuildExtension();
@ -88,7 +88,7 @@ public:
virtual double GetNodeArea(int ny, unsigned int pos[3], bool dualMesh = false) const; virtual double GetNodeArea(int ny, unsigned int pos[3], bool dualMesh = false) const;
virtual double GetNodeLength(int ny, unsigned int pos[3], bool dualMesh = false) const; virtual double GetNodeLength(int ny, unsigned int pos[3], bool dualMesh = false) const;
virtual double GetKappaGraded(double depth) const; virtual double GetKappaGraded(double depth, double Zm) const;
virtual bool Calc_ECPos(int nP, int n, unsigned int* pos, double* inEC) const; virtual bool Calc_ECPos(int nP, int n, unsigned int* pos, double* inEC) const;