CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   FLUENT (https://www.cfd-online.com/Forums/fluent/)
-   -   UDF for fully developed flow at inlet (https://www.cfd-online.com/Forums/fluent/196324-udf-fully-developed-flow-inlet.html)

John222 December 1, 2017 07:35

UDF for fully developed flow at inlet
 
Hi all :)

I created a UDF code to make the flow at inlet fully developed for a 3d circular cross section pipe to be modelled in LES. The pipe is 12 inch diameter and the speed is 13 m/s at inlet.

I need to verify it and cross check with any similar works done in the past in published papers or reports.

Let me know your suggestions.

LuckyTran December 1, 2017 14:25

Fully developed laminar or turbulent inlet? Since you mention LES, it seems to suggest turbulent.

The laminar profile is parabolic like and quite doable but the turbulent profile is not known, unless you know it?

John222 December 1, 2017 16:09

Quote:

Originally Posted by LuckyTran (Post 673625)
Fully developed laminar or turbulent inlet? Since you mention LES, it seems to suggest turbulent.

The laminar profile is parabolic like and quite doable but the turbulent profile is not known, unless you know it?

It is turbulent flow, what do you mean unknown. I know the flow speed at inlet


All times are GMT -4. The time now is 04:29.