100 lines
2.9 KiB
C++
Executable file
100 lines
2.9 KiB
C++
Executable file
/////////////////////////////////////////////////////////////
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//
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// mixture-averaged transport properties
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//
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// copyright California Institute of Technology 2002
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//
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/////////////////////////////////////////////////////////////
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#include <cantera/Cantera.h>
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#include <cantera/transport.h>
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#include "example_utils.h"
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#include <cantera/equilibrium.h>
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#include <cantera/IdealGasMix.h>
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using namespace Cantera;
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template<class G, class V>
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void makeTransportDataLabels(const G& gas, V& names) {
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int nsp = gas.nSpecies();
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names.resize(nsp + 3);
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names[0] = "Temperature (K)";
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names[1] = "Viscosity ()";
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names[2] = "Thermal Conductivity (W/m-K)";
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int k;
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for (k = 0; k < nsp; k++) names[3+k] = gas.speciesName(k);
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}
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template<class G, class A>
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void plotTransportSoln(string fname, string fmt, string title, const G& gas,
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const A& soln) {
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vector<string> names;
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makeTransportDataLabels(gas, names);
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writePlotFile(fname, fmt, title, names, soln);
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}
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int transport_example2(int job) {
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try {
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cout << "Multicomponent transport properties." << endl;
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if (job > 0) {
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cout << "Viscosity, thermal conductivity, and thermal diffusion\n"
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" coefficients at 2 atm for a "
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<< "range of temperatures" << endl;
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}
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if (job <= 1) return 0;
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// create a gas mixture, and set its state
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IdealGasMix gas("gri30.cti", "gri30");
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doublereal temp = 2000.0;
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doublereal pres = 2.0*OneAtm;
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gas.setState_TPX(temp, pres, "H2:1.0, O2:0.5, CH4:0.1, N2:0.2");
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equilibrate(gas,"TP");
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// create a transport manager that implements
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// multicomponent transport properties
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Transport* tr = newTransportMgr("Multi", &gas);
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int nsp = gas.nSpecies();
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// create a 2D array to hold the outputs
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int ntemps = 20;
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Array2D output(nsp+3, ntemps);
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// main loop
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for (int i = 0; i < ntemps; i++) {
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temp = 500.0 + 100.0*i;
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gas.setState_TP(temp, pres);
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output(0,i) = temp;
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output(1,i) = tr->viscosity();
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output(2,i) = tr->thermalConductivity();
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tr->getThermalDiffCoeffs(&output(3,i));
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}
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// make a Tecplot data file and an Excel spreadsheet
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string plotTitle = "transport example 2: "
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"multicomponent transport properties";
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plotTransportSoln("tr2.dat", "TEC", plotTitle, gas, output);
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plotTransportSoln("tr2.csv", "XL", plotTitle, gas, output);
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// print final temperature
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cout << "Output files:" << endl
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<< " tr2.csv (Excel CSV file)" << endl
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<< " tr2.dat (Tecplot data file)" << endl;
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return 0;
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}
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// handle exceptions thrown by Cantera
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catch (CanteraError) {
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showErrors(cout);
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cout << " terminating... " << endl;
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appdelete();
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return -1;
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}
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}
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