Navigation

    CFD中文网

    CFD中文网

    • Login
    • Search
    • 最新

    openfoam处理颗粒碰撞中,切向和法向回弹系数是默认为相同的?

    OpenFOAM
    1
    1
    88
    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.
    • H
      hotairballon1997 last edited by

      在WallSpringSliderDashpot.C中,有这样几句:

          scalar etaN = alpha_*sqrt(p.mass()*kN)*pow025(normalOverlapMag);
          vector fN_PW =
              rHat_PW
             *(kN*pow(normalOverlapMag, b_) - etaN*(U_PW & rHat_PW));
          ...
      
          scalar etaT = etaN;
          ...
          (if条件:颗粒不滑移的条件下)
          fT_PW = - kT*tangentialOverlap_PW - etaT*USlip_PW;
      

      这里的颗粒碰撞中的切向阻尼系数,etaN,等于法向值,然后分别应用到求碰撞力的切向和法向分量,fN, fT,中。是不是意味着,我在颗粒配置文件中通过alpha设置的回弹系数值e, 就是同时设定了切向和法向的回弹系数,eT, eN, 都等于e?

      请问这个理解对不对?

      1 Reply Last reply Reply Quote
      • First post
        Last post

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