2528df0f75
These changes make it unnecessary to copy header files around during the build process, which tends to confuse IDEs and debuggers. The headers which comprise Cantera's external C++ interface are now in the 'include' directory. All of the samples and demos are now in the 'samples' subdirectory.
107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
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#include <cantera/Cantera.h>
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#include <cantera/IdealGasMix.h> // defines class IdealGasMix
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <map>
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#include <numeric>
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#include <string>
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#include <algorithm>
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using namespace std;
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using namespace Cantera;
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using namespace Cantera_CXX;
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// The program is put into a function so that error handling code can
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// be conveniently put around the whole thing. See main() below.
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void demoprog()
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{
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printf("\n\n**** Testing modifying NASA polynomial coefficients ****\n\n");
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IdealGasMix gas("h2o2.cti","ohmech");
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int nsp = gas.nSpecies();
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int type;
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doublereal c[15];
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doublereal minTemp, maxTemp, refPressure;
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// get a reference to the species thermo property manager
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SpeciesThermo& sp = gas.speciesThermo();
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int n, j;
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// these constants define the location of coefficient "a6" in the
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// cofficient array c. The c array contains Tmid in the first
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// location, followed by the 7 low-temperature coefficients, then
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// the seven high-temperature ones.
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const int LOW_A6 = 6;
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//const int HIGH_A6 = 13;
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for (n = 0; n < nsp; n++) {
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printf("\n\n %s (original):", gas.speciesName(n).c_str());
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// get the NASA coefficients in array c
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sp.reportParams(n, type, c, minTemp, maxTemp, refPressure);
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// print the unmodified NASA coefficients
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printf("\n ");
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for (j = 1; j < 8; j++) {
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printf(" A%d ", j);
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}
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printf("\n low:");
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for (j = 1; j < 8; j++) {
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printf(" %10.4E ", c[j]);
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}
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printf("\n high:");
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for (j = 8; j < 15; j++) {
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printf(" %10.4E ", c[j]);
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}
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printf("\n ");
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// modify coefficient A6 of the low-temperature polynomial
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// Note that since we are not modifying the high-temperature
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// polynomial, a warning will be printed about a discontinuity
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// in enthalpy at Tmid.
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c[LOW_A6] += 1.0e4;
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sp.modifyParams(n, c);
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sp.reportParams(n, type, c, minTemp, maxTemp, refPressure);
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// print the modified NASA coefficients
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printf("\n\n %s (modified):", gas.speciesName(n).c_str());
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printf("\n ");
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for (j = 1; j < 8; j++) {
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printf(" A%d ", j);
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}
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printf("\n low:");
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for (j = 1; j < 8; j++) {
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printf(" %10.4E ", c[j]);
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}
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printf("\n high:");
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for (j = 8; j < 15; j++) {
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printf(" %10.4E ", c[j]);
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}
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printf("\n ");
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}
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}
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int main()
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{
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try {
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demoprog();
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} catch (CanteraError) {
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showErrors(cout);
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}
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}
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