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I don't able to get grey mean combstion coefficients of methnol. |
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Janeshwar Sharma
Join Date: Oct 2020
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please help me in knowing the radiation emission properties of methanol.
The code I posted has CH4 as a furl but in my case CH3OH is the fuel.So can you help me to know the radiation properties and grey mean combustion coefficients of CH3OH. radiation on; radiationModel fvDOM; fvDOMCoeffs { nPhi 2; // azimuthal angles in PI/2 on X-Y.(from Y to X) nTheta 2; // polar angles in PI (from Z to X-Y plane) tolerance 1e-1; // convergence tolerance for radiation iteration maxIter 1; // maximum number of iterations } // Number of flow iterations per radiation iteration solverFreq 10; absorptionEmissionModel greyMeanCombustion; constantCoeffs { absorptivity 0.01; emissivity 0.01; E 0; } greyMeanCombustionCoeffs { lookUpTableFileName none; EhrrCoeff 0.0; CO2 { Tcommon 200; // Common Temp invTemp true; // Is the polynomial using inverse temperature. Tlow 200; // Low Temp Thigh 2500; // High Temp loTcoeffs // coefss for T < Tcommon ( 0 // a0 + 0 // a1*T + 0 // a2*T^(+/-)2 + 0 // a3*T^(+/-)3 + 0 // a4*T^(+/-)4 + 0 // a5*T^(+/-)5 + ); hiTcoeffs // coefss for T > Tcommon ( 18.741 -121.31e3 273.5e6 -194.05e9 56.31e12 -5.8169e15 ); } CH4 { Tcommon 200; Tlow 200; Thigh 2500; invTemp false; loTcoeffs ( 0 0 0 0 0 0 ); hiTcoeffs ( 6.6334 -0.0035686 1.6682e-8 2.5611e-10 -2.6558e-14 0 ); } |
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cfd - post, combustion, openfoam 1806 |
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