Fluids

Fluids

Solution not converging

    • knuckshuk
      Subscriber
      Please find attached file herewith for the simulation result I am getting from fluent. The result is for second part of burner problem i.e for Spool piece. Please check and suggest. Awaiting for your reply.
    • Karthik R
      Administrator
      Could you please help me understand what you are attempting to model? Are you solving a Natural Convection model? If you are doing this, please make sure you have gravity turned on. If this is not the case, please elaborate on what you are attempting to model.nThanks.nKarthikn
    • knuckshuk
      Subscriber
      Hi! Thank you for replying. I am trying to see the temperature and velocity profile of a milk inside a can, heated from all directions. The geometry is a simple cylinder and filled with milk (no headspace). I have set the walls, top and bottom of the can to be at a fixed temperature of 120oC. I have turned on the gravity y = -9.81. This is the screenshot of another attempt of calculation that i did. nIt mentioned that it has converged at the first 5 iterations, but suddenly it didnt. There's this message on the report as well  temperature limited to 5.000000e+03 in 17321 cells on zone 2 in domain 1. From what I look up from the forums, the message usually doesnt really affect anything and I have checked my mesh (since its a simple cylinder). So i'm not too sure what is wrong with my setup. Hope that you can advise!Array
    • Rob
      Ansys Employee
      What are you using for the milk density?n
    • knuckshuk
      Subscriber
      I am using piecewise-linear data set. It only has 6 data for 10oC to 60oC. n
    • Rob
      Ansys Employee
      OK, so, given the volume is fixed and density changes with temperature (milk expands) where does the extra volume go? n
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