Fully Developed Boundary Condition at Duct Inlet

January 23, 2005, 22:27

Hi everyone,

I try to impose a fully-developed turbulent boundary condition at a duct inlet. Is the 1/7-power-low velocity profile as in CFX tutorial 9 a proper approximation? What are other popular power-low velcity profile expressions? And how can I get the K and epsilon inlet profile if the k-e turbulence model was adopted?

Thanks, Twiti

January 24, 2005, 02:31

You can easily specify your own inlet profile in CFX5.7. See the profile boundary condition (under solver theory if I'm right) in the user manual for details. Good luck, TB

January 23, 2005, 22:27	Fully Developed Boundary Condition at Duct Inlet	#1
Twiti Guest Posts: n/a	Hi everyone, I try to impose a fully-developed turbulent boundary condition at a duct inlet. Is the 1/7-power-low velocity profile as in CFX tutorial 9 a proper approximation? What are other popular power-low velcity profile expressions? And how can I get the K and epsilon inlet profile if the k-e turbulence model was adopted? Thanks, Twiti

January 24, 2005, 02:31	Re: Fully Developed Boundary Condition at Duct Inl	#2
TB Guest Posts: n/a	You can easily specify your own inlet profile in CFX5.7. See the profile boundary condition (under solver theory if I'm right) in the user manual for details. Good luck, TB

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