|March 24, 2011, 16:13||
What are the 21 numbers in reactingFoam/constant/thermo.compressibleGas?
Join Date: Mar 2011
Posts: 25Rep Power: 7
The reactingFoam tutorial is about combustion of methane, so in constant/thermo.compressibleGas is the list of reactants and products. Each one, such as O2, has 21 numbers associated with it. The second number is molecular weight, but what are the 20 others? I sure wish the user's guide had more. Thank you, very much indeed, for any help you can provide! Scot
|March 26, 2011, 15:11||
Join Date: Mar 2009
Location: Polonghera, Cuneo, Italy
Posts: 27Rep Power: 9
let me take the O2 like an example:
O2 O2 1 31.9988
200 5000 1000
3.69758 0.00061352 -1.25884e-07 1.77528e-11 -1.13644e-15 -1233.93 3.18917
3.21294 0.00112749 -5.75615e-07 1.31388e-09 -8.76855e-13 -1005.25 6.03474
2° number -> molar weight (31.9988)
3° - 5° numbers -> temperature ranges where the interpolations are valid (min T = 200 K, max T = 5000 K, "middle" T = 1000 K. So we have two ranges: from 200 K to 1000 K and from 1000 K to 5000 K)
6° - 12° numbers -> seven coefficients for Janaff interpolation (cp, h, S) for the first temperature range (3.69758 0.00061352 -1.25884e-07 1.77528e-11 -1.13644e-15 -1233.93 3.18917)
12° - 19° numbers -> seven coefficients for Janaff interpolation (cp, h, S) for the second temperature range (3.21294 0.00112749 -5.75615e-07 1.31388e-09 -8.76855e-13 -1005.25 6.03474)
20° - 21° numbers -> coefficients for Sutherland interpolation for viscosity (1.67212e-06 170.672)
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|April 4, 2014, 08:47||
coeff for Argon ?
Join Date: Mar 2009
Location: POLAND, USA
Posts: 139Rep Power: 9
Do you now any place I could find these values for Argon ?
temperature range 87 - 400K ?
|April 4, 2014, 12:28||
Join Date: Jun 2013
Posts: 26Rep Power: 5
In the following links you can find some tables of Argon:
If you want to know about the liquid phase check:
There you can find properties of nitrogen, carbon, dioxide, argon, hydrogen and oxygen. Between those properties: Density & temperature calculation of the liquid phase, based on the pressure.
|October 1, 2014, 09:27||
get the thermo data
Does anybody know how to retrieve the data in thermo.CompressibleGas from code? Reactingfoam code defines this object:
psiReactionThermo& thermo = reaction->thermo();
basicMultiComponentMixture& composition = thermo.composition();
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