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February 6, 2003, 13:04 |
Inlet Turbulence
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#1 |
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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? |
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February 14, 2003, 03:02 |
Re: Inlet Turbulence
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#2 |
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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 |
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March 28, 2003, 07:43 |
Re: Inlet Turbulence
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#3 |
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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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