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OF10| reactingFoam with multi-component transport

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Old   September 17, 2022, 19:24
Question OF10| reactingFoam with multi-component transport
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Manahara Manatunga
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Hi all,

I am trying to model a hydrogen diffusion flame using reactingFoam. The reference experimental flame is the DLR-H5 flame (Re_j=6600). There is noticeable preferential diffusion happening close to the jet-nozzle and I am hoping to capture this via an LES/EDC (finite-rate chem w/ TCI) simulation using OF10 solver reactingFoam.

I am fairly new to OpenFOAM and C++. I have gathered that newer versions of reactingFoam (>=OF8) has the capability to include preferential diffusion effects and thermal diffusion. I referred to the user guide section 7.1 for information on setting up my case.

According to the OF10 userguide and the Sandia_D_LTS example, I have set-up my constant/physicalProperties as:

    type            hePsiThermo;
    mixture         multiComponentMixture;
    transport       sutherland;
    thermo          janaf;
    energy          sensibleEnthalpy;
    equationOfState perfectGas;
    specie          specie;
under the laminar examples I found a further mixture type
and also came across the transport type
under /src/ThermophysicalTransportModels/laminar

I am interested in modelling the momentum transport with LES while combustion is modelled via TCI model EDC with detailed multi-component transport. (Wilke for mixture viscosity calculations and including Maxwell-Stefan diffusivities in the species transport equations). Neither of these class references are listed in the userguide under section 7.1.

My questions is if what I am trying to achieve is possible through OF10 and if so, where can I find some more information of the inputs for the coefficientWilkeMultiComponentMixture and MaxwellStefan.

Thank you in advance,

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Old   September 19, 2022, 03:45
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Domenico Lahaye
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Yes, this should be possible in principle. Typically convergence is hard to achieve.

Below is a recent recent (among many other others).

With more precise indications of what you need, I can see how to provide further input.

title = {Large Eddy Simulation of a dual swirl gas turbine combustor: Flame/flow structures and stabilisation under thermoacoustically stable and unstable conditions},
journal = {Combustion and Flame},
volume = {203},
pages = {279-300},
year = {2019},
issn = {0010-2180},
doi = {},
url = {},
author = {Zhi X. Chen and Ivan Langella and Nedunchezhian Swaminathan and Michael Stöhr and Wolfgang Meier and Hemanth Kolla},
keywords = {Large Eddy Simulation, Partially premixed combustion, Gas turbine model combustor, Dual swirl, Self-excited thermoacoustic instability}
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combustion, diffusion flames, multicomponent diffusion, openfoam 10, reactingfoam

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