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Problem with noCombustion > rhoReactingFoam

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Old   April 7, 2020, 18:44
Default Problem with noCombustion > rhoReactingFoam
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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?
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Old   August 11, 2020, 14:34
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Robert Crane
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did you ever figure this out? I am having the same problem.
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Old   August 11, 2020, 16:32
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Try "none" instead of "noCombustion" - that seems to work fine for me.
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Old   August 11, 2020, 17:02
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Robert Crane
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thank you, that worked for me as well.
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Old   August 12, 2020, 04:29
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Domenico Lahaye
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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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