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Species and Energy source term unit.

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Old   August 16, 2018, 04:42
Default Species and Energy source term unit.
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Hi,all.

I try wall condensation of H2O gas,using OpenFOAM 2.3.1.
I modify rhoReactingBuoyantFoam.
Into YEqn.H, I add source term "Mass_sou" volScalarField ,and into EEqn.H "Eng_sou" .
I want to know the unit of Mass_sou and Eng_sou.
I think Mass_sou as "kg/m3/s" and Eng_sou "W/m3".
Is it right?

following is source code.

<<YEqn.H>>
fvScalarMatrix YiEqn
(
fvm::ddt(rho, Yi)
+ mvConvection->fvmDiv(phi, Yi)
- fvm::laplacian(turbulence->muEff(), Yi)
==
reaction->R(Yi)
+ fvOptions(rho, Yi)
+ Mass_sou
)

<<EEqn.H>>
fvScalarMatrix EEqn
(
fvm::ddt(rho, he) + mvConvection->fvmDiv(phi, he)
+ fvc::ddt(rho, K) + fvc::div(phi, K)
+ (
he.name() == "e"
? fvc::div
(
fvc::absolute(phi/fvc::interpolate(rho), U),
p,
"div(phiv,p)"
)
: -dpdt
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
reaction->Sh()
+ fvOptions(rho, he)
+ Eng_sou
);

How can I find out the information?
please tell me...

Regard.
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Old   August 21, 2018, 17:14
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Beside doing it per hand (you know the dimensions for rho and he and can calculate it from fvm::ddt(rho, he)) you could just add whatever as a source term and then run the simulation. OpenFOAM will tell you which dimensions you need.
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Old   August 22, 2018, 00:57
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Hi, mitti.

Thank you for replying in spite of my poor questions.
Calculations seem to proceed without problems.
I think that I could probably set as I intended.

I appreciate your response.
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