ComputeForces Moment Calculation

MaxoMaxo
in DualSPHysics v5.0

Hello,

I am simulating a screw extruder and I want to calculate the drive power. Therefore I am using Computeforces -momentaxis to calculate the torque on the screw. My problem is: for some viscosities the torque is zero although the forces in xyz dircetions arent, also the overall simulated results dont seem to fit to literature etc.. I hope someone can help me if there are some issues with compute forces.

Comments

  • Asalih3dAsalih3d

    Hi Maxo

    I believe there is an option to extract forces at each particle, then by doing this you can yourself calculate the moment as you want and double check ComputeForces. Have a look at:

    DualSPHysics_v5.0\doc\help\ComputeForces_Help.out

    image.png


    Kind regards

  • MaxoMaxo

    Thanks for your answer.

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