Ansys Fluent Geoemtry Precision Different

- May 6, 2022 at 4:34 am
  
  yew511
  Subscriber
  
  Hi, I am drawing my model in Solidworks and export them as stp into Fluent workbench. During post processing, I noticed that the initial dimension has little deviation from the original dimension of my domain. My domain is -5 mm to 5 mm along the z direction. However, in post processing, it starts from -4.9995 mm, although it is little deviation, it affects my results because i need accurate location to place my contour.
- May 6, 2022 at 1:53 pm
  
  Swathi V. V.
  Ansys Employee
  
  Hi Can you try to import file in different format? Can you also try importing into Design Modeller and Spacelaim? Check the tolerance setting in solidworks while exporting as well. It is always a good practice to check the range of dimensions of computational domain under General>Scale before simulation.
- May 11, 2022 at 9:55 am
  
  yew511
  Subscriber
  
  It should start from 0 mm in x and y direction. How to solve this issue ya? I import in design modeller then to ICEM for meshing and output it as .msh
- May 11, 2022 at 3:29 pm
  
  Rob
  Forum Moderator
  
  You've run geometry through a translator, then facetted it so I'd expect a small amount of drift. A difference of 0.0000096% isn't going to make much difference to your results. If you machined the part how far off the dimension do you think you'll be?

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