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Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

perforated wall model

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    • wei xin
      Subscriber

      I made the settings according to the user guide, but encountered the following issues,after editing the TXT file according to the help document, there is a "Please specify coupling approach: uncoupled/coupled." problem when reading the file. I am sure that there is no problem with the model input. Some files are as follows:

      1
      0.6
      inject-wall
      coupled extract-wall
      discrete  Point-Direction ext-discrete
      dynamic compressible
      % x y z vx vy vz diameter cd
      1.914449 0.1172331 0.1077797 0 0 1 0.001 0.5
      1.944378 0.1172331 0.1098533 0 0 1 0.001 0.5
    • Rob
      Forum Moderator

      I assume both "inject-wall" and "extract-wall" exist and are adjacent to the fluid(s) volume(s). 

    • wei xin
      Subscriber

      yes, i am sure that "inject-wall" and "extract-wall" exist and both are adjacent to the fluid(s) volume(s)

    • Rob
      Forum Moderator

      I can't see anything obvious so have asked one of our second line team. That could take a few days depending on holidays & time zones as well as availability. If we've not responded by late Monday please bump the thread. 

    • Rob
      Forum Moderator

      Having had the thread checked the format looks OK. Can you check if "Point-Direction" and "point-direction" makes a difference?  Are there any spaces or odd characters in the path name? Did you type the commands into a text editor or copy from the documentation? If the latter can you check for white space characters. 

      The two points defined create a cylinder that is projected to the two surfaces (injection & extraction), I assume the axis this sets will hit those surfaces? That shouldn't be the issue here given the error seems to be earlier in the set up. 

       

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