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SuperLatticePhysCorrDrag3D

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  • #6221
    yx19971028
    Participant

    Hello everyone,
    I want to research the flow past the square cylinder based on code in the example named cylinder3d.But the lift coefficient(Cl) is obviously lower than the experimental value.
    The Cl I got is about 0.004 while the experimental data is about 0.4.I want to ask how to improve the accuracy of Cl.
    The code is as follows:
    IndicatorCuboid3D<T> squarecircle ( extend, origin );
    superGeometry.rename( 1,2,squarecircle );
    sLattice.defineDynamics(superGeometry, 2, &boundaryDynamics);
    setWallFunctionBoundary<T,DESCRIPTOR>(sLattice, superGeometry, 2, converter, wallFunctionParam);
    SuperLatticePhysCorrDrag3D<T,DESCRIPTOR> drag( sLattice, superGeometry, 2, converter );
    T dragA[3];
    int input1[3] = {};
    drag( dragA, input1 );
    clout << “; drag=” << dragA[0] << “; lift=” << dragA[1] <<endl;
    Thank you.
    Xu Yang

    #6222
    mathias
    Keymaster

    Dear Xu,

    this is a complex question which require to know many details which cannot be anwered within the forum. It requires a personal consulting which we offer in the froamwork of a common project.

    Best
    Mathias

    #6224
    yx19971028
    Participant

    Dear Mathias,
    Thank you for your apply.
    Best
    Xu Yang.

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