OpenFOAM 10 中，使用后处理forceCoeffs 的命令

[wr_z]

请教各位前辈，在OpenFOAM 10中，想要输出圆柱绕流模型中最后一步的曳力系数，命令怎么写，使用命令“pimpleFoam -postProcess -func forceCoeffs1 -latestTime” 一直报错，forceCoeffs文件：

Error:

[李东岳]

functions
{
    forces
    {
        type            forceCoeffs;
        libs            ("libforces.so");
        writeControl    timeStep;
        writeInterval   1;
    
        patches         ("motorBike.*");
        rho             rhoInf;      // Indicates incompressible
        log             true;
        rhoInf          1;           // Redundant for incompressible
        liftDir         (0 0 1);
        dragDir         (1 0 0);
        CofR            (0.72 0 0);  // Axle midpoint on ground
        pitchAxis       (0 1 0);
        magUInf         20;
        lRef            1.42;        // Wheelbase length
        Aref            0.75;        // Estimated
    }
}

http://dyfluid.com/code.html#id37

[wr_z]

@李东岳 感谢东岳老师的回复，请问这个forceCoeffs是要写在controlDict里么，我把forceCoeffs里的内容复制到了controlDict，然后修改了运行命令为：pimpleFoam -postProcess -func forces -latestTime，还是报错。

controlDict:
controlDict

error:

[李东岳]

估计你的不是openfoam10

另外，type已经有了

functions
{
    forces
    {
        type            forceCoeffs;///////////////////////////////////
        libs            ("libforces.so");
        writeControl    timeStep;
        writeInterval   1;
    
        patches         ("motorBike.*");
        rho             rhoInf;      // Indicates incompressible
        log             true;
        rhoInf          1;           // Redundant for incompressible
        liftDir         (0 0 1);
        dragDir         (1 0 0);
        CofR            (0.72 0 0);  // Axle midpoint on ground
        pitchAxis       (0 1 0);
        magUInf         20;
        lRef            1.42;        // Wheelbase length
        Aref            0.75;        // Estimated
    }
}

[wr_z]

@李东岳 感谢东岳老师的回复。已解决。需要在system里有一个单独的forceCoeffs文件，然后在controlDict里的添加functions{#include "forceCoeffs"}，这样会在输出文件里输出每一步的Cd等相关信息。感谢老师！