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multiComponentMixture - Combustion with OpenFoam

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Old   May 23, 2022, 07:53
Default multiComponentMixture - Combustion with OpenFoam
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Hi to everyone,
i'm having a problem with OF especially with the combustion case with the tool reactingFoam. i'm trying to do this tutorials (https://develop.openfoam.com/Develop.../RAS/DLR_A_LTS) but OF gives me an error:
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 9
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
Build : 9-b456138dc4bc
Exec : reactingFoam
Date : May 23 2022
Time : 10:33:45
Host : "7a5db86db9cd"
PID : 1143
I/O : uncollated
Case : /home/openfoam/combustion/SandiaD_LTS
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: No convergence criteria found


PIMPLE: Operating solver in transient mode with 1 outer corrector
PIMPLE: Operating solver in PISO mode


Using LTS
Reading thermophysical properties

Selecting thermodynamics package
{
type hePsiThermo;
mixture multiComponentMixture;
transport sutherland;
thermo janaf;
energy sensibleEnthalpy;
equationOfState perfectGas;
specie specie;
}



--> FOAM FATAL IO ERROR:
keyword species is undefined in dictionary "/home/openfoam/combustion/SandiaD_LTS/constant/thermophysicalProperties"

file: /home/openfoam/combustion/SandiaD_LTS/constant/thermophysicalProperties from line 19 to line 32.

From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const
in file db/dictionary/dictionary.C at line 831.

FOAM exiting


does anyone know why?

thnks to all that will answer me
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Old   May 23, 2022, 09:21
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Alessio Piccolo
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Hi ade10, I think that the problem is due to how you write the entries in thermophysical properties since you are using V9 and the tutorial is from V2112. I suggest to check in V9 tutorial folder for the same case and seeing how they write down the entries. Let me know.
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Old   June 28, 2022, 18:46
Default multiComponentMixture - Combustion with OpenFoam
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ET3
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Erik T
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Hi ade10,



Did you solve this problem? I am stuck on it too.



The tutorials I am using have outdated mixture commands, but updating to multiComponentMixture was straightforward.



The "keyword specie is undefined in dictionary...." error persists.



For what it's worth, I am using the tutorials that came with my installation.



Thank you,

Erik
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Old   June 29, 2022, 03:33
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Quote:
Originally Posted by ET3 View Post
Hi ade10,



Did you solve this problem? I am stuck on it too.



The tutorials I am using have outdated mixture commands, but updating to multiComponentMixture was straightforward.



The "keyword specie is undefined in dictionary...." error persists.



For what it's worth, I am using the tutorials that came with my installation.



Thank you,

Erik
Hi Erik, can you show as the thermo physical properties files and tell also which tutorial and version are you using?
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Old   June 29, 2022, 05:06
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Quote:
Originally Posted by ET3 View Post
Hi ade10,



Did you solve this problem? I am stuck on it too.



The tutorials I am using have outdated mixture commands, but updating to multiComponentMixture was straightforward.



The "keyword specie is undefined in dictionary...." error persists.



For what it's worth, I am using the tutorials that came with my installation.



Thank you,

Erik
Hi Erik,
yes i've solved the problem.... I was using of.org and it wants some things written differently from of.com

you can try this:


/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 9
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
format ascii;
class dictionary;
location "constant";
object thermophysicalProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

thermoType
{
type hePsiThermo;
mixture multiComponentMixture;
transport sutherland;
thermo janaf;
energy sensibleEnthalpy;
equationOfState perfectGas;
specie specie;
}

defaultSpecie N2;

#include "thermo.compressibleGasGRI"
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Old   June 29, 2022, 11:51
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ET3
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Hi Alessio,



Thank you for the response!



I am trying the tutorial counterFlowFlame2DLTS.



I think I may be confused about which version I am using. When I run blockMesh, it says version 9 :


/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 9
\\/ M anipulation |
\*---------------------------------------------------------------------------*/



.
.
.


But my tutorials are for v2106. Below is the thermoPhysicalProperties file.



Based on ade10's reply, I learned that there are two different "flavors" of openfoam. Are there compelling reasons to use one over the other?













/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2106 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object thermophysicalProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

thermoType
{
type heRhoThermo;
mixture multiComponentMixture;
transport sutherland;
thermo janaf;
equationOfState perfectGas;
specie specie;
energy sensibleEnthalpy;
}

inertSpecie N2;

chemistryReader foamChemistryReader;

foamChemistryFile "<constant>/reactions";

foamChemistryThermoFile "constant/thermo.compressibleGas";


// ************************************************** *********************** //
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Old   June 29, 2022, 13:21
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hi the include functions can be different from of.com to of.org
try to download and launch this one
https://github.com/AleOfMan/OpenFoamTutorial.git
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