[jishnuhari25]

Dear FOAMERS,
As part of my Master project, I am supposed to do saturated flow boiling simulation using OpenFOAM. I have selected twoPhaseEulerFoam as the base solver. I am planning to introduce heat transfer coeffecient as one parameter. From a paper i referred, the the correlation includes a vapour quality term. But i dont know how I should introduce that term. Please help me.
Thanks in advance
Š

[jishnuhari25]

FOAMERS,
please find some time to help me in explaining the physics behind the case bubblecolumn in twoPhaseEulerFoam. I am not able to get the science and hence not able to develop it into my work, i.e, saturated flow boiling simulation.
Please help.
Thanks in advance

[jishnuhari25]

FOAMERS,
I am currently working on twoPhaseEulerFoam for the simulation of saturated flow boiling. I dont have clear idea about the tutrial bubble column of twoPhaseEulerFoam and I am unable to find any tutorial decribing the problem.
Please help me
Thanks in advance

[jishnuhari25]

Hi all,
I am doing saturated boiling and while compiling my solver I am stuck with following errors.
boilingModel.H: In function ‘int main(int, char**)’:
boilingModel.H:19:87: error: cannot convert ‘Foam::dimensioned<double>’ to ‘double’ for argument ‘1’ to ‘double exp(double)’
dimensionedScalar dw = min(0.0014, 0.0006*::exp(-((Tsat.value()-T2[faceCelli])/45)));
^
In file included from twoPhaseEulerFoam.C:80:0:
boilingModel.H:78:19: error: cannot convert ‘Foam::dimensioned<double>’ to ‘double’ in assignment
mEvap[faceCelli] = (Qevap.value()/(hfg.value()+Cp2.value()*(Tsat.value()- T2[faceCelli])))/mesh.V()[faceCelli];//calculating evapoative mass transfer


boilingmodel is a header file used to implement bubble characteristics. Please heklp me as I am stuck here.

[RjwV]

Hello jishnuhari25,

I know it may be a little late, but here is my attempt to help you.

First of all, try to avoid using integers in equations only containing doubles, so don't use "1" or "2", or in your case, "45". Try using 45.0 instead. Sometimes using an integer will try to force your entire equation to become an integer.

Also, does "0.0006*::exp" work in other equations? Shouldn't it be 0.0006*Foam::exp or 0.0006*std::exp , depending on what you want to use?

Not sure what the problem in line 80 could be.

Kind regards,
Ramon

[jishnuhari25]

Thank you very much for your reply.
I have completed my project somehow and it shows pretty good results. Thank you very much for spending your time in trying to resolve my problem.