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#41 | |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
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Quote:
there are tables for JANAF values for various materials in net or in thermodynamics books like van wylen,... I remember I found them although wasn't easy enough.
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#42 |
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AdOo
Join Date: Mar 2016
Location: Bordeaux
Posts: 91
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Hi Punit Walia,
I'm in the same case as yours, did you get any answer ? Thank you Adrien |
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#43 |
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Chris Cloney
Join Date: Jun 2016
Location: Halifax, Canada
Posts: 62
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This is an old thread, but the link for the old janaf tables is down. I was wondering if anyone could post a new link or the old files?
I will use the new ones for now, but they are overkill for my problem. |
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#44 |
New Member
Join Date: Sep 2019
Posts: 14
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Dear Foamers
In OFv7 and OFv2006 and other earlier versions, in janafThermoI.H file, calculation of dGdT (Gibbs free energy derivative w.r.t. temperature) is expressed as: Code:
template<class EquationOfState> inline Foam::scalar Foam::janafThermo<EquationOfState>::dGdT ( const scalar p, const scalar T ) const { const coeffArray& a = coeffs(T); return -((a[0] + a[5]/T)/T + a[1]/2 + T*(a[2]/3 + T*(a[3]/4 + T*a[4]/5))); } It may be a silly question, but could anybody please explain why is this so? Thank you |
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Tags |
development, janaf, openfoam-1.5, thermophysicalproperties |
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