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openFoam difference between Total Temperature ad fixed Value? |
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September 12, 2016, 10:51 |
openFoam difference between Total Temperature ad fixed Value?
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#1 |
Member
annn
Join Date: Jun 2016
Posts: 40
Rep Power: 9 |
What is the difference between the boundary conditions (for temperature) fixedValue and total Temperature, i consulted the user guide but the explanation was very basic: This boundary condition provides a total temperature condition
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September 19, 2016, 09:08 |
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#2 |
Senior Member
Join Date: Sep 2013
Posts: 353
Rep Power: 20 |
This should answer your question about total temperature:
https://en.wikipedia.org/wiki/Stagnation_temperature And this is the actual implementation in the code: Code:
const fvPatchVectorField& Up = patch().lookupPatchField<volVectorField, vector>(UName_); const fvsPatchField<scalar>& phip = patch().lookupPatchField<surfaceScalarField, scalar>(phiName_); const fvPatchField<scalar>& psip = patch().lookupPatchField<volScalarField, scalar>(psiName_); scalar gM1ByG = (gamma_ - 1.0)/gamma_; operator== ( T0_/(1.0 + 0.5*psip*gM1ByG*(1.0 - pos(phip))*magSqr(Up)) ); |
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