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Fluid flow, pressure drop simulation in Comsol

  1. Nov 4, 2009 #1
    Dear all,

    I am trying to solve a simple model with Comsol to find the pressure drop in a rectangular channel W=5mm, h=0.6mm, L=10mm. When i try to set the inlet velocity to 0.5m/s the solver shows the error message "Maximum number of newton iterations reached". The solver works fine if i set the input velocity to lower velocity(eg., 0.005m/s). when i increase the velocity to 0.05 m/s the solver ends up with the error message. I even tried to increase the height of the channel, still get the same error sequence.

    I am using a Stationary, Direct (Pardiso)solver.

    Any comments or help is much appreciated.

    Thanks in advance

  2. jcsd
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