# WHAT IS EXACTLY FREE SURFACE FLOW

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 March 11, 2006, 07:46 WHAT IS EXACTLY FREE SURFACE FLOW #1 RASHMI Guest   Posts: n/a DEAR ALL, I WANTED TO KNOW WHAT EXACTLY MEANS FREE SURFACE FLOW IN DETAIL...... THANKS & REGARDS RASHMI V RAO

 March 11, 2006, 12:35 Re: WHAT IS EXACTLY FREE SURFACE FLOW #2 Ahmed Guest   Posts: n/a Open channel flows in general, rivers, oceans are good examples

 March 13, 2006, 05:29 Re: WHAT IS EXACTLY FREE SURFACE FLOW #3 RASHMI Guest   Posts: n/a THNX AHMED BUT I NEED DO KNOW STILL MORE SPECIFIC AND IN DETAILED FASHION...NOT ONLY EXAMPLES. COULD ANYONE HELP ME TO KNOW ABT THIS ? RASHMI V RAO

 March 13, 2006, 19:14 Re: WHAT IS EXACTLY FREE SURFACE FLOW #4 Dan Guest   Posts: n/a free surface means that the surface motion is unknown of the problem and it is going to be part of the solution. you can set up some boundary condition on the free surface (such as no heat flow) but its motion is going to be determined by the code.

 March 14, 2006, 00:13 Re: WHAT IS EXACTLY FREE SURFACE FLOW #5 RASHMI Guest   Posts: n/a THNX DAN..... I GOT IT !!!! I WAS BIT UNDER CONFUSION REGARDING THIS ..... NOW GOT CLEARED. THNX A LOT !!!!

 March 14, 2006, 09:58 Re: WHAT IS EXACTLY FREE SURFACE FLOW #6 KP Guest   Posts: n/a Free surfaces have zero gradients associated with them. A possible way to take this in account is by using a outflow BC in Fluent 6.x series. They are important for jet flow simualtions. If u want to simulate bubble columns and have only air at the top then-degassing bc are used. They are different. Let me know if this helps. KP PS: It would be apprecited if you stop using upper case in forums. Thanks

 March 14, 2006, 17:08 Re: WHAT IS EXACTLY FREE SURFACE FLOW #7 Dan Guest   Posts: n/a your're welcome.

 March 15, 2006, 01:26 Re: WHAT IS EXACTLY FREE SURFACE FLOW #8 RASHMI Guest   Posts: n/a Ok KP, I shall avoid using upper case letter 's further. Thnx..For ur answer to my question. Rashmi V Rao

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