WHAT IS EXACTLY FREE SURFACE FLOW

March 11, 2006, 06:46

DEAR ALL,

I WANTED TO KNOW WHAT EXACTLY MEANS FREE SURFACE FLOW IN DETAIL......

THANKS & REGARDS RASHMI V RAO

March 11, 2006, 11:35

Open channel flows in general, rivers, oceans are good examples

March 13, 2006, 04:29

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, 18:14

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 13, 2006, 23:13

THNX DAN..... I GOT IT !!!! I WAS BIT UNDER CONFUSION REGARDING THIS ..... NOW GOT CLEARED. THNX A LOT !!!!

March 14, 2006, 08:58

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, 16:08

your're welcome.

March 15, 2006, 00:26

Ok KP, I shall avoid using upper case letter 's further. Thnx..For ur answer to my question.

Rashmi V Rao

March 11, 2006, 06:46	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, 11:35	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, 04:29	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, 18:14	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 13, 2006, 23:13	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, 08:58	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, 16:08	Re: WHAT IS EXACTLY FREE SURFACE FLOW	#7
Dan Guest Posts: n/a	your're welcome.

March 15, 2006, 00:26	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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