[R.Tanaka]

Hello everyone on cfd-online!

I have some issue about my 'chtMultiRegionFoam' case and post here cause, i couldn't find how to fix in similar case.
if someone solve these error, i apologize.

First,below is my case and logs.
https://drive.google.com/drive/folde...Pe?usp=sharing

my case has 3 regions of 1fluid and 2solid.
i wanna solve a heat transfer between air to fin-tube heat exchanger and refrigerant.
i decided solve refrigerant as a solid to ease.

the error cause when i start chtMultiRegionFoam
After reading thermophysical properties, analysis will down suddenly like below.

*** Reading solid mesh thermophysical properties for region Ref44

Adding to thermos

Selecting thermodynamics package
{
type heSolidThermo;
mixture pureMixture;
transport constIso;
thermo hConst;
equationOfState rhoConst;
specie specie;
energy sensibleEnthalpy;
}

Adding to radiations

Selecting radiationModel none
Adding fvOptions

[66] #0 Foam::error:rintStack(Foam::Ostream&)[69] #0

This is my first post, so I apologize for any rudeness.

[LongGe]

Hello

Your job seems to have stopped due to the occurrence of "KILLED BY SIGNAL: 8 (Floating point exception)". So I have examined your 0 directory. As a result, you have set the values of p and p_rgh in relative pressure. If you use "chtMultiRegionFoam", use absolute pressure. That is, the atmospheric pressure is 101325 [Pa]. Will your job still stop if modify this?

[R.Tanaka]

Thank you for your advice!

I overlooked important things!
There still is a problem with the stability of the analysis, but the issue was solved!

https://drive.google.com/file/d/137K...ew?usp=sharing