# Turbulence Model Study

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 July 3, 2002, 06:55 Turbulence Model Study #1 Sridhar Guest   Posts: n/a Dear Fluent Users, I am studying the flow in the simplified 2d radiator with 10 tubes. Before doing this I am doing a model study to see which turbulence model is suitable for this problem. Can anyone suggest a model which is suitable for this problem, and if not the steps to be followed during the model study, I mean how can we decide which model is suitable. Thanks Sridhar.

 July 4, 2002, 00:12 Re: Turbulence Model Study #2 Lanre Guest   Posts: n/a Are you interested in the tube-side or shell/external-side of the radiator?

 July 4, 2002, 03:17 Re: Turbulence Model Study #3 Sridhar Guest   Posts: n/a Hi Lanre, I am intrested in flow inside the radiator tubes. I made a simple radiator with inlet, inlet connected to inlet tank which is connected to 10 tubes(each 5mm width)and then to a outlet tank and to outlet. I am studying the effect of inlet and outlet position on the fluid flow across the tubes and overall pressure drop between inlet and outlet. Thanks. Sridhar.

 July 4, 2002, 11:23 Re: Turbulence Model Study #4 Lanre Guest   Posts: n/a First determine whether the flow is indeed turbulent in the entry and discharge headers, and in the tubes. If the flow is turbulent, I would suggest the RNG k-e model with non-equilibrium wall functions for your developing boundary layer in the tubes.

 July 4, 2002, 16:58 Re: Turbulence Model Study #5 Sridhar Guest   Posts: n/a Thanks Lanre. Sridhar.

 July 5, 2002, 12:37 Re: Turbulence Model Study #6 chun Guest   Posts: n/a hi, sridhar mad for deepa

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