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Some testing...

pull/1/head
Thorsten Liebig 2010-03-01 20:50:42 +01:00
parent eea86d4184
commit 61f69dd240
4 changed files with 77 additions and 16 deletions
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21
Analyse/PlotVoltage.m Normal file
View File

@ -0,0 +1,21 @@
%close all;
clear all;
clc
tmp = load('../tmp/u1');
t = tmp(:,1);
u = tmp(:,2);
L=numel(t);
subplot(2,1,1);
plot(t,u);
dt=t(2)-t(1);
f = (1:L)/L/dt;
fu = fft(u)/L;
subplot(2,1,2);
plot(f(1:L/2),abs(fu(1:L/2)));

10
FDTD/engine.cpp
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@ -36,11 +36,11 @@ bool Engine::IterateTS(unsigned int iterTS)
for (unsigned int iter=0;iter<iterTS;++iter)
{
//voltage updates
for (pos[2]=1;pos[2]<Op->numLines[2]-1;++pos[2])
for (pos[0]=1;pos[0]<Op->numLines[0]-1;++pos[0])
{
for (pos[1]=1;pos[1]<Op->numLines[1]-1;++pos[1])
{
for (pos[0]=1;pos[0]<Op->numLines[0]-1;++pos[0])
for (pos[2]=1;pos[2]<Op->numLines[2]-1;++pos[2])
{
//do the updates here
//for x
@ -78,15 +78,15 @@ bool Engine::IterateTS(unsigned int iterTS)
//do the updates here
//for x
curr[0][pos[0]][pos[1]][pos[2]] *= Op->ii[0][pos[0]][pos[1]][pos[2]];
curr[0][pos[0]][pos[1]][pos[2]] -= Op->iv[0][pos[0]][pos[1]][pos[2]] * ( volt[2][pos[0]][pos[1]+1][pos[2]] - volt[2][pos[0]][pos[1]][pos[2]] - volt[1][pos[0]][pos[1]][pos[2]+1] + volt[1][pos[0]][pos[1]][pos[2]]);
curr[0][pos[0]][pos[1]][pos[2]] += Op->iv[0][pos[0]][pos[1]][pos[2]] * ( volt[2][pos[0]][pos[1]][pos[2]] - volt[2][pos[0]][pos[1]+1][pos[2]] - volt[1][pos[0]][pos[1]][pos[2]] + volt[1][pos[0]][pos[1]][pos[2]+1]);
//for y
curr[1][pos[0]][pos[1]][pos[2]] *= Op->ii[1][pos[0]][pos[1]][pos[2]];
curr[1][pos[0]][pos[1]][pos[2]] -= Op->iv[1][pos[0]][pos[1]][pos[2]] * ( volt[0][pos[0]][pos[1]][pos[2]+1] - volt[0][pos[0]][pos[1]][pos[2]] - volt[2][pos[0]+1][pos[1]][pos[2]] + volt[2][pos[0]][pos[1]][pos[2]]);
curr[1][pos[0]][pos[1]][pos[2]] += Op->iv[1][pos[0]][pos[1]][pos[2]] * ( volt[0][pos[0]][pos[1]][pos[2]] - volt[0][pos[0]][pos[1]][pos[2]+1] - volt[2][pos[0]][pos[1]][pos[2]] + volt[2][pos[0]+1][pos[1]][pos[2]]);
//for x
curr[2][pos[0]][pos[1]][pos[2]] *= Op->ii[2][pos[0]][pos[1]][pos[2]];
curr[2][pos[0]][pos[1]][pos[2]] -= Op->iv[2][pos[0]][pos[1]][pos[2]] * ( volt[1][pos[0]+1][pos[1]][pos[2]] - volt[1][pos[0]][pos[1]][pos[2]] - volt[0][pos[0]][pos[1]+1][pos[2]] + volt[0][pos[0]][pos[1]][pos[2]]);
curr[2][pos[0]][pos[1]][pos[2]] += Op->iv[2][pos[0]][pos[1]][pos[2]] * ( volt[1][pos[0]][pos[1]][pos[2]] - volt[1][pos[0]+1][pos[1]][pos[2]] - volt[0][pos[0]][pos[1]][pos[2]] + volt[0][pos[0]][pos[1]+1][pos[2]]);
}
}
}

2
FDTD/processvoltage.cpp
View File

@ -38,5 +38,5 @@ void ProcessVoltage::Process()
}
// cerr << voltage << endl;
voltages.push_back(voltage);
file << Eng->numTS << "\t" << voltage << endl;
file << (double)Eng->numTS*Op->GetTimestep() << "\t" << voltage << endl;
}

60
main.cpp
View File

@ -12,6 +12,7 @@
using namespace std;
void BuildMSL(ContinuousStructure &CSX);
void BuildDipol(ContinuousStructure &CSX);
int main(int argc, char *argv[])
{
@ -19,8 +20,7 @@ int main(int argc, char *argv[])
//*************** setup/read geometry ************//
ContinuousStructure CSX;
// CSX.ReadFromXML("csx-files/MSL.xml");
BuildMSL(CSX);
BuildDipol(CSX);
//*************** setup operator ************//
CartOperator cop;
@ -38,7 +38,7 @@ int main(int argc, char *argv[])
// cop.DumpOperator2File("tmp/Operator");
cerr << "Nyquist number of timesteps: " << cop.GetNyquistNum(fmax) << endl;
unsigned int NrIter = cop.GetNyquistNum(fmax);
unsigned int NrIter = cop.GetNyquistNum(fmax)/3;
cerr << "Time for operator: " << difftime(OpDoneTime,startTime) << endl;
@ -50,11 +50,13 @@ int main(int argc, char *argv[])
//*************** setup processing ************//
ProcessVoltage PV(&cop,&eng);
PV.OpenFile("tmp/u1");
double start[]={0,0,0};
double stop[]={0,50,0};
double start[]={-500,-150,0};
double stop[]={-500,150,0};
PV.DefineStartStopCoord(start,stop);
unsigned int maxIter = 5000;
PV.Process();
// NrIter=200;
//*************** simulate ************//
for (unsigned int i=0;i<maxIter;i+=NrIter)
{
@ -73,6 +75,44 @@ int main(int argc, char *argv[])
return 0;
}
void BuildDipol(ContinuousStructure &CSX)
{
CSPropMaterial* mat = new CSPropMaterial(CSX.GetParameterSet());
mat->SetKappa(0.001);
CSX.AddProperty(mat);
CSPrimBox* matbox = new CSPrimBox(CSX.GetParameterSet(),mat);
matbox->SetCoord(0,-1000.0);matbox->SetCoord(1,1000.0);
matbox->SetCoord(2,-1000.0);matbox->SetCoord(3,1000.0);
matbox->SetCoord(4,-1000.0);matbox->SetCoord(5,1000.0);
CSX.AddPrimitive(matbox);
CSPropElectrode* elec = new CSPropElectrode(CSX.GetParameterSet());
elec->SetExcitation(1,1);
elec->SetExcitType(0);
// elec->SetDelay(2.0e-9);
CSX.AddProperty(elec);
CSPrimBox* box = new CSPrimBox(CSX.GetParameterSet(),elec);
box->SetCoord(0,-1.0);box->SetCoord(1,1.0);
box->SetCoord(2,-75.0);box->SetCoord(3,75.0);
box->SetCoord(4,-1.0);box->SetCoord(5,1.0);
CSX.AddPrimitive(box);
CSRectGrid* grid = CSX.GetGrid();
for (int n=-1000;n<=1000;n+=20)
grid->AddDiscLine(2,(double)n);
for (int n=-1000;n<=1000;n+=20)
grid->AddDiscLine(0,(double)n);
for (int n=-1000;n<=1000;n+=20)
grid->AddDiscLine(1,(double)n);
grid->SetDeltaUnit(1e-3);
CSX.Write2XML("tmp/Dipol.xml");
}
void BuildMSL(ContinuousStructure &CSX)
{
// CSPropMaterial* mat = new CSPropMaterial(CSX.GetParameterSet());
@ -109,14 +149,14 @@ void BuildMSL(ContinuousStructure &CSX)
CSRectGrid* grid = CSX.GetGrid();
for (int n=-100;n<=100;n+=10)
grid->AddDiscLine(2,(double)n);
for (int n=-100;n<=100;n+=10)
for (int n=-300;n<=300;n+=20)
grid->AddDiscLine(0,(double)n);
for (int n=0;n<=100;n+=10)
for (int n=0;n<=300;n+=20)
grid->AddDiscLine(1,(double)n);
for (int n=-1000;n<=1000;n+=20)
grid->AddDiscLine(2,(double)n);
grid->SetDeltaUnit(1e-3);
CSX.Write2XML("csx-files/MSL.xml");
CSX.Write2XML("tmp/MSL.xml");
}