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-   -   Problem with noCombustion > rhoReactingFoam (https://www.cfd-online.com/Forums/openfoam-solving/225787-problem-nocombustion-rhoreactingfoam.html)

IronArma April 7, 2020 18:44

Problem with noCombustion > rhoReactingFoam
 
Hi Foamers,

It is few months since I have started dealing with OpenFOAM and of course i seldom run into multiple errors that i can usually takle also looking at the threads in this forum. This time i cannot manage to solve my problem.

In particular I am working on a problem that is very similar to the tutorial that you find in combustion/reactingFoam/counterFlowFlame2D. I am running the OpenFOAM v1912 version.

If i run the simulation as it is, everything works properly, however if i switch off the combustion by simply acting on the combustionProperties file:
Code:

/*--------------------------------*- C++ -*----------------------------------*\
| =========                                                                 
| \\      /  F ield        | OpenFOAM: The Open Source CFD Toolbox         
|  \\    /  O peration    | Version:  v1912                               
|  \\  /    A nd          | Website:  www.openfoam.com                   
|    \\/    M anipulation  |                                               
\*---------------------------------------------------------------------------*/
FoamFile
{
    version    2.0;
    format      ascii;
    class      dictionary;
    location    "constant";
    object      combustionProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

combustionModel  noCombustion;

active  false;

noCombustionCoeffs
{
}

// **********************************************************//

when i run the reactingFoam solver, the simulation is stuck at the selection of the combustion model... and the terminal freezes with this lines

Code:

Reading/calculating face flux field phi

Creating turbulence model.

Selecting turbulence model type laminar
Selecting laminar stress model Stokes
Creating reaction model

Selecting combustion model noCombustion

Of course, i have left unaltered all of the other files in the 0, constant and system directories.
Can you help me understanding what is going on?

rcrane22 August 11, 2020 14:34

did you ever figure this out? I am having the same problem.

Tobermory August 11, 2020 16:32

Try "none" instead of "noCombustion" - that seems to work fine for me.

rcrane22 August 11, 2020 17:02

thank you, that worked for me as well.

dlahaye August 12, 2020 04:29

Question: how do results, CPU run time and speed of convergence of rhoReactingFoam and reactingFoam differ for the test case considered? Thx.


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