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August 31, 2005, 14:05 |
In the combustion solvers, the
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#1 |
New Member
Bei
Join Date: Mar 2009
Posts: 21
Rep Power: 17 |
In the combustion solvers, the enthalpy equation doesn't include chemical reaction source term. For instance, in reactingFoam, chemistry.solve is called to get the species source term, but based on the chemistryModel::solve(), the temperature/enthalpy of mixture are calculated and discarded when returning from the subroutine. It must be my misunderstanding. Please tell me how it works with the energy equation. Thanks!
Bei |
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February 15, 2012, 06:31 |
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#2 |
Senior Member
isabel
Join Date: Apr 2009
Location: Spain
Posts: 171
Rep Power: 17 |
Dear everybody,
I have exactly the same doubt. For example, the enthalpy equation of the solver xiFoam does not include any chemical reaction source term: solve ( fvm::ddt(rho, h) + mvConvection->fvmDiv(phi, h) - fvm::laplacian(turbulence->alphaEff(), h) = = DpDt ); How does the solver computes the increment of temperature due to combustion? |
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February 19, 2012, 18:54 |
total energy
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#3 |
New Member
lapaci
Join Date: Feb 2012
Posts: 1
Rep Power: 0 |
If the formulation is based on the total energy, energy equation does not include reacting source term. It is in the species equation (formation enthalpy.)
Poinsot & Veynant was explaining many formulations of energy equations. p.s. i am new in OpenFoam, where can i find a simple tutorial for a diffusion flame and which solver shall i use. |
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