No, it's something to understand & check. The classic example (which is covered in the Fluent User's Guide) are the turbulence models: most suffer from limitations of some sort which is why there are a few to choose from. Read https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v241/en/flu_ug/flu_ug_sec_turb_choosing.html for more information.Â
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