Fluids

Fluids

Temperature distribution in polyflow simulation

    • Larissa333
      Subscriber
      Hello,I am doing a non-isothermal time independent simulation in polyflow, in which I consider that viscoty is temperature dependent and that viscous forces are not neglected. I started the simulation from a steady-state one whith the same assumptions.nThe simulation is of a twin-screw extrusion process.nMy simulation is converging, but the temperature is almost not varying throughout the mesh. I do not have any idea about why this is occuring.nI put all the material data obtained experimentally, so I do not think this is the reason. nSo I was wondering if you could have a sugestion about the problem.nnThank you in advance.nnRegards, n
    • ydai
      Ansys Employee
      Hello Larissa,n So it sounds like the temperature variation to be expected to see will not be caused by heat transfer from boundary but only caused by viscous heating? If true, did you confirm if you have activated wall viscous heat in Material Data menu? By default it is off.n Hope this helpsn Yinn n
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