[tsjb00]

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

[isabel]

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?

[mkaraca]

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.