Navigation

    CFD中文网

    CFD中文网

    • Login
    • Search
    • 最新

    三维圆柱绕流升力沿管长分布

    OpenFOAM
    1
    2
    219
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • F
      Fu last edited by

      最近在研究圆柱绕流。 用的算例是李老师提供的算例:http://www.dyfluid.com/icofoam.html

      现在我把圆柱从二维(Z方向一层网格)拉伸到三维计算圆柱绕流。 但是现在的forceCoeffs 和Forces function只能生成整个三维圆柱的升力和阻力。 如果我想生成沿管长方向的升力分布,例如均分成100个分段的升力。 Openfoam能够见到做到这点吗:143:

      隔壁有人提供了这种后处理方法,但是看起来需要每个时间步单独处理,而且三维的数据量太大了,,这样好像不能每个时间步自动处理。

      These are my paraviewsteps in short:

      1)Extracted Surface
      2)Generate Surface Normals
      3)Calculated:
      cp = normals*(p2-p1); ->Pressure Drag
      cf=tangentialsmuwallGradU_y -> Friction Drag (or calculated directly by foamCalc components wallGradU
      4) Build Integral Drag=S(cp_X+cf_X)dA2/rhovvA

      1 Reply Last reply Reply Quote
      • F
        Fu last edited by

        回复自己。。。用bindata
        https://www.openfoam.com/documentation/guides/latest/doc/guide-fos-forces-forces.html

        1 Reply Last reply Reply Quote
        • First post
          Last post

        CFD中文网 | 东岳流体 | 京ICP备15017992号-2