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Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

FLUENT UDF dynamic mesh+ MIXTURE

    • yaolong1302091233
      Subscriber

      Hi everyone, I'm having problems using FLUENT for stirring simulation again, UDF moving mesh + MIXTURE, and when I run it, I often get a mistake
      Updating solution at time levels N and N-1.
      Updating solution at time levels N and N-1. done.

      Updating mesh at time level N...
      set_part_dest_tree: cell not found on myid = 7.(Fig.3)

      This makes the calculation impossible and I have to proceed from the latest saved transient casdat file, which is obviously frustrating, I would like to know the reason for the error and a possible solution, is it related to the parallel core settings, when I open Flunet to work on it, I always get the message, Process affinity not being set (Fig.2)? I am using 50 cores double precision for simulation work. From the iteration curve(Fig.1), i dont think it is a mesh problem or model issue. hope you guys can answer my query, thanks!

    • Rob
      Forum Moderator

      https://innovationspace.ansys.com/forum/forums/topic/fluent-udf-dynamic-mesh-mixture/  Does this help?

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