102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
// geom.cpp
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//
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// last-edit-by: J.A. de Jong
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//
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// Description:
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//
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//////////////////////////////////////////////////////////////////////
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#include "geom.h"
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#include "grid.h"
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#include "duct.pb.h"
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#include "tasmet_pyeval.h"
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#include <memory>
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#include "tasmet_exception.h"
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Geom::Geom(const pb::Duct& duct) {
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// Step one: create the grid
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std::unique_ptr<Grid> grid;
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switch (duct.gridtype()) {
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case pb::Linear:
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grid = std::unique_ptr<Grid>(new LinearGrid(duct.ngp(),
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duct.length()));
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break;
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case pb::BlGrid:
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grid = std::unique_ptr<Grid>(new BlGrid(duct.length(),
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duct.dxb(),
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duct.dxmid()));
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break;
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default:
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return;
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break;
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}
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// Store x
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x = grid->getx();
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EvaluateFun Sfun(duct.area());
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Sfun.addGlobalDef("L",duct.length());
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S = Sfun(x);
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for(auto& Si:S) {
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if(Si <=0){
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throw TaSMETError("Invalid cross-sectional area function");
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}
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}
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EvaluateFun phifun(duct.phi());
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Sfun.addGlobalDef("L",duct.length());
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phi = Sfun(x);
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EvaluateFun rhfun(duct.rh());
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Sfun.addGlobalDef("L",duct.length());
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rh = Sfun(x);
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cshape = duct.cshape();
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}
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string Geom::shapeString() const {
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return pb::Cshape_Name(cshape);
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}
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bool Geom::isPrismatic() const {
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bool ok = true;
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d S0 = S(0);
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for(auto& Si : S) {
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ok&= Si==S0;
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}
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return ok;
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}
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d Geom::getFluidVolume() const {
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d Vf=0;
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us i=0;
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Vf+=0.5*(x(i+1)-x(i))*Sf(i); // First 'cell'
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for(i=1;i<ngp()-1;i++){ // Middle cells
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Vf+=0.5*(x(i)-x(i-1))*Sf(i);
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Vf+=0.5*(x(i+1)-x(i))*Sf(i);
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}
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Vf+=0.5*(x(i)-x(i-1))*Sf(i); // Last 'cell'
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return Vf;
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}
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d Geom::getSolidVolume() const {
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d Vs=0;
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int i=0;
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Vs+=0.5*(x(i+1)-x(i))*Ss(i); // First 'cell'
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for(int i=1;i<ngp()-1;i++){ // Middle cells
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Vs+=0.5*(x(i)-x(i-1))*Ss(i);
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Vs+=0.5*(x(i+1)-x(i))*Ss(i);
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}
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Vs+=0.5*(x(i)-x(i-1))*Ss(i); // Last 'cell'
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return Vs;
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}
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//////////////////////////////////////////////////////////////////////
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