Add source term in alphaEqn.H of interFoam

tayo · November 28, 2012, 11:41

Hello all,

Just a quick one. I added a source term (Sp) to alphaEqn.H in interFoam. I tried following example in interPhaseChangeFoam but compiling it gives me error in MULES that "5 arguments are expected, 6 provided" (Sp is the addition). How do I properly include this Sp source term in the alpha eqn? Or is there an alternative way to do this? Thanks

surfaceScalarField phiAlpha
(
fvc::flux
(
phi,
alpha1,
alphaScheme
)
+ fvc::flux
(
-fvc::flux(-phir, scalar(1) - alpha1, alpharScheme),
alpha1,
alpharScheme
)
);

volScalarField Sp
(
IOobject
(
"Sp",
runTime.timeName(),
mesh
),
source term
);

MULES::explicitSolve(alpha1, phi, phiAlpha, Sp, 1, 0);

Mahdi2010 · October 23, 2013, 04:40

If you wanna add any source term to the alpha equation using the MULE
solver, you need to take care of the MULE functions in MULE.H.
There are two ways that MULE works, implicit or explicit. whether your source term is defined explicitly or implicitly, you should have Su and Sp as the source term.
in your code you call the MULE explicitly but you define 1 source term. the error says that
either change the function call to implicit solve or define a new source term called Su.
By the way, what your source term looks like?

November 28, 2012, 11:41	Add source term in alphaEqn.H of interFoam	#1
tayo Member Tayo Join Date: Aug 2012 Posts: 94 Rep Power: 14	Hello all, Just a quick one. I added a source term (Sp) to alphaEqn.H in interFoam. I tried following example in interPhaseChangeFoam but compiling it gives me error in MULES that "5 arguments are expected, 6 provided" (Sp is the addition). How do I properly include this Sp source term in the alpha eqn? Or is there an alternative way to do this? Thanks surfaceScalarField phiAlpha ( fvc::flux ( phi, alpha1, alphaScheme ) + fvc::flux ( -fvc::flux(-phir, scalar(1) - alpha1, alpharScheme), alpha1, alpharScheme ) ); volScalarField Sp ( IOobject ( "Sp", runTime.timeName(), mesh ), source term ); MULES::explicitSolve(alpha1, phi, phiAlpha, Sp, 1, 0);

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October 23, 2013, 04:40		#2
Mahdi2010 Member Mahdi Join Date: Jul 2012 Posts: 53 Rep Power: 14	If you wanna add any source term to the alpha equation using the MULE solver, you need to take care of the MULE functions in MULE.H. There are two ways that MULE works, implicit or explicit. whether your source term is defined explicitly or implicitly, you should have Su and Sp as the source term. in your code you call the MULE explicitly but you define 1 source term. the error says that either change the function call to implicit solve or define a new source term called Su. By the way, what your source term looks like?