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Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Fluent mesh penetration warning

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    • Lee
      Subscriber

      Hello, everyone,

          When I clicked the “initialize” option, the warning “Info: Interface zones penetrate each other. This could adversely affect your solution” appeared.

          As is shown in figure 1, whole fluid domain consists of two parts: fluid domain 1 and domain 2, interface between them consists of surface 1(belong to domain 1) and surface 2(belong to domain 2).

          As is shown in figure 2, there two versions of fluid domain 1: fluid domain 1-v1 and fluid domain 1-v2. And in figure 1, the fluid domain 1 is v1.

          The problem is: when I put fluid domain 1-v1 in whole fluid domain, there was no warning message, shown in figure 3, however, once I chose the fluid domain 1-v2 as the fluid domain 1, warnings appeared, shown in figure 4.

          I did the analysis of interference between parts in Creo, there is no interference in this model.

          Could anyone tell me the reason behind this? Thanks!

      Regards,

      Figure 1 whole fluid domain

      Figure 2 Modifications on fluid domain 1

      Figure 3

      Figure 4

    • Federico
      Ansys Employee

      Hello Lee, 

      If you have already checked that there is no interference in your model, I would run this case and monitor the solution at the interface. Fluent is finding intersections based on a proximity threshold, but it is possible that this does not impact your solution.

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