Semi circular tubes inlet/outlet boundary condition in a fluid domain in FLUENT -- CFD Online Discussion Forums

June 28, 2016, 03:16	Semi circular tubes inlet/outlet boundary condition in a fluid domain in FLUENT	#1
oozcan Senior Member Onur Özcan Join Date: Feb 2016 Location: Istanbul/Turkey Posts: 461 Rep Power: 12	Hi all, I just want to learn about inlet/outlet hydraulic diamaters For example I have a value in inlet in tubes-enter to be obtained by myself numerically.( velocity magnitude depending on volumetric flow rate and tube inlet crossectional areas.) But the model that is used in FLUENT has lots of semi circular tubes then, velocity magnitude depending on volumetric flow rate changes with hydraulic diameter or total circular diamater? I have made 4x Area / Perimeter to find hyrdaulic diamater in a tube. is it correct ? Kind Regards,

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