Am i right? porous jump drag force

chocolater · February 27, 2008, 04:55

Hei,

Usually, when we want to see the drag force on the wall, can use Refort-->Forces... But porous jump zone is different. it can plot only wall zones. I want to see the drag forces circluar porous zone at 2D and 3D. Some people say that can see using Report->Surface Integals. But I don't know how calcuate the pressure difference at Custom Field Functions. How can manage to pressure differece on the surface of circlar porous area.... ??? So~~, This is my way to calculate the forces at porous zones how Define --> Boundary Condition --> porous-jump change to wall after finish iteration. and then can see the force value at Report-Fores... Is that way is corret or not?? Just give the answer YES or NO.

Shim.

chocolater · September 9, 2013, 16:04

hi shim
was u right?

Are u know now? how can calculate the drag of a porous zone (or porous jump) in FLUENT? Fluent just calculate drag of walls, and porous is not a wall.

Heini · August 25, 2014, 09:33

Also interested in this subject. Did you find a solution to it?

February 27, 2008, 04:55	Am i right? porous jump drag force	#1
Shim Guest Posts: n/a	Hei, Usually, when we want to see the drag force on the wall, can use Refort-->Forces... But porous jump zone is different. it can plot only wall zones. I want to see the drag forces circluar porous zone at 2D and 3D. Some people say that can see using Report->Surface Integals. But I don't know how calcuate the pressure difference at Custom Field Functions. How can manage to pressure differece on the surface of circlar porous area.... ??? So~~, This is my way to calculate the forces at porous zones how Define --> Boundary Condition --> porous-jump change to wall after finish iteration. and then can see the force value at Report-Fores... Is that way is corret or not?? Just give the answer YES or NO. Shim. chocolater likes this.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
drag coefficient computation on a porous jump???	Fabrice	FLUENT	4	June 5, 2017 05:30
Plot drag forces at porous jump boundary condition	Shim	FLUENT	1	June 5, 2017 04:31
Force can not converge	colopolo	CFX	13	October 4, 2011 22:03
Porous Jump : Drag Force	pk	FLUENT	0	May 15, 2008 07:39
How calculate drag force for porous sphere	Chandan Sarkar	FLUENT	2	September 23, 2002 02:12

September 9, 2013, 16:04		#2
chocolater New Member i man Join Date: Feb 2013 Posts: 10 Rep Power: 13	hi shim was u right? Are u know now? how can calculate the drag of a porous zone (or porous jump) in FLUENT? Fluent just calculate drag of walls, and porous is not a wall.

August 25, 2014, 09:33		#3
Heini New Member Heini Rasmussen Join Date: Dec 2010 Posts: 9 Rep Power: 15	Also interested in this subject. Did you find a solution to it?