# Inlet Turbulence

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 February 6, 2003, 13:04 Inlet Turbulence #1 Yazhuo Qian Guest   Posts: n/a To set the Inlet Turbulence in Phoenics 3.4, one could either set the inlet turbulence intensity, or set the KEin and EPin, If I choose to set inlet turbulence intensity, how the Phoenics treat with that condition? I think it may use the equation: KEin=3*(Ti*U)**2/2, to get KEin. If I am right, what about EPin?

 February 14, 2003, 03:02 Re: Inlet Turbulence #2 neihad Guest   Posts: n/a I agree with you. EPin can be calculated from the following relationship: Epin= C^(3/2)* (K^(3/2))/L where c=constant=0.01-0.1 L=Reference length (e.g. 0.05 D duct) Regards Neihad

 March 28, 2003, 07:43 Re: Inlet Turbulence #3 John Ludwig, CHAM Guest   Posts: n/a The inlet turbulence is set as follows: KEin = ((I/100)*VELin)^2 where I is the intensity in % and VELin is the inlet velocity EPin = 0.164*(KEin^1.5)/(0.1*l) where l is half the minimum inlet dimension.

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