Can anyone highlights the characteristic lengh fluent uses?
For example, if I want to calculate Renould number on a plane (contour) which is velocity*density*charactersticLength/viscosity
What value of Characteristic Length does fluent use by default?
When we want to determine which force is dominant we need to know dimensionless numbers and many of them are dependent on Characteristic Length. But this Characteristic Length is a random number (I know sometime we used D, L of the domain), then how we can make sure which force is dominant??
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