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# heat-transfer
  • j

    jong4651

    08/18/2024, 5:01 AM
    However I am struggling to impliment either of these methods. Any guidance would be much appreciated!
  • j

    jong4651

    08/18/2024, 5:52 AM
    For reference. I do not need to model the chemistry occuring in the burner. However, the temperature of the gas should jump in the flame zone. The import aspect that I am looking at is how the flow leaves the burner and interacts with a surface close by
  • j

    jong4651

    08/18/2024, 6:28 AM
    I believe I can impliment (2) by using the fan boundary condition on the patch and setting the temperature to be the desired value
  • m

    Momo_sel

    10/15/2024, 2:48 AM
    Hello, I'm new here. I'm working in doing a simulation of an anisothermal lid driven cavity filled with water (mixed convection) and i am kinda lost on which solver to use
  • m

    Momo_sel

    10/15/2024, 2:49 AM
    I am using openfoam 11 and started doing it with (fluid) solver while using boussinesq as equation of state but i don’t think it’s working well for me. 😦 any recommendations?
  • g

    Gry Llida 🦗

    03/30/2025, 10:01 PM
    hi, some proprietary software has shell conduction option for conjugate heat transfer. for a zero thickness wall it allows to specify the layers materials and thicknesses and volumetric heat source in solution setup, then models conduction both parallel and perpendicular to the surface. is this available in opemfoam? any examples please? thanks
  • y

    Yann

    03/31/2025, 7:23 AM
    Yes, ``thermalBaffle`` in the OpenCFD branch : https://develop.openfoam.com/Development/openfoam/-/blob/OpenFOAM-v2412/src/regionModels/thermalBaffleModels/derivedFvPatchFields/thermalBaffle/thermalBaffleFvPatchScalarField.H There is a tutorial using it: ``$FOAM_TUTORIALS/heatTransfer/buoyantSimpleFoam/roomWithThickCeiling``
  • y

    Yann

    03/31/2025, 7:29 AM
    In the foundation branch I think there is only ``thermalBaffle1D``
  • b

    bazz

    04/04/2025, 6:59 PM
    Does anyone have an idea how to postProcess heat transfer coefficient
  • b

    bazz

    04/04/2025, 6:59 PM
    I am using buoyantPimpleFoam
  • b

    bazz

    04/04/2025, 7:00 PM
    I saw the video from fluid mechanics 101
  • b

    bazz

    04/04/2025, 7:01 PM
    I extract wallHeatFlux but what to do after that
  • b

    bazz

    04/04/2025, 7:01 PM
    Is there a function to get heat transfer coefficient
  • b

    bazz

    04/04/2025, 7:01 PM
    Directly
  • b

    bazz

    04/04/2025, 7:02 PM
    Using kOmegaSST
  • p

    Paketbote

    04/05/2025, 7:39 AM
    Depending on the OpenFOAM branch you use: https://doc.openfoam.com/2306/tools/post-processing/function-objects/field/heatTransferCoeff/ or https://cpp.openfoam.org/v9/classFoam_1_1functionObjects_1_1wallHeatTransferCoeff.html.
  • b

    bazz

    04/05/2025, 3:09 PM
    functions { heatTransferCoeff { type heatTransferCoeff; libs ("libfieldFunctionObjects.so"); field T; writeControl timeStep; writeInterval 1000; patches (hot cold insulatedwall); htcModel fixedReferenceTemperature; TRef 303; } } used this and it gave me a heatTransferCoeff field
  • b

    bazz

    04/05/2025, 3:09 PM
    but it is coming out to be infinity
  • b

    bazz

    04/05/2025, 3:11 PM
    can it be because of my 2d case
  • b

    bazz

    04/05/2025, 3:54 PM
    maybe its because i am using a wrong patch
  • b

    bazz

    04/05/2025, 3:54 PM
    insulatedwall has zero gradient why would it have heat flux
  • b

    bazz

    04/05/2025, 3:54 PM
    omg i am domb\
  • b

    bazz

    04/05/2025, 4:02 PM
    is still -1.4e145
  • g

    Gry Llida 🦗

    04/08/2025, 10:10 AM
    hi. thank you. um, i didnt know there are separate branches foundation and opencfd
  • g

    Gry Llida 🦗

    04/08/2025, 10:11 AM
    there is .com and .org which is which?
  • y

    Yann

    04/08/2025, 10:12 AM
    .com is the OpenCFD branch
  • k

    kandelabr

    04/08/2025, 10:12 AM
    [at this moment]
  • y

    Yann

    04/08/2025, 10:12 AM
    and .org the foundation branch
  • g

    Gry Llida 🦗

    04/08/2025, 10:12 AM
    ok thank you
  • y

    Yann

    04/08/2025, 10:15 AM
    True. OpenCFD always remained OpenCFD so far, despite being owned by SGI, then ESI and now Keysight. But I guess the future of OpenCFD is in Keysight hands now.