Pressure Force Output

mohammad.sarfaraz · June 15, 2014, 12:52

Dear all

In my model, a fixed component is placed above the flow and never touch the flow.

But when I see the Pressure Force in the z-direction, its value is NOT zero.

(The *.prepin file is attached.)

Any help is appreciated.

Zograth · July 2, 2014, 15:20

Isn't that the pressure from the fluid on itself? There's alot of pressure on the bottom of the ocean.

Zograth · July 2, 2014, 19:30

You can analyze the pressure acting on the component by checking it in "output" for the component. Then you will see that the pressure is zero.

mohammad.sarfaraz · July 3, 2014, 02:42

Quote:

Originally Posted by Zograth

You can analyze the pressure acting on the component by checking it in "output" for the component. Then you will see that the pressure is zero.

There is NO flow around the component, So there is NO pressure acting on the component, So the output force should be ZERO. But it is NOT zero.

Zograth · July 3, 2014, 08:18

I tested your prepin. The force is zero. When you analyze the pressure around the component go to probe and scroll down to component 1: x pressure force and so on to check the different forces that is acting on the object.

mohammad.sarfaraz · July 3, 2014, 08:38

Quote:

Originally Posted by Zograth

I tested your prepin. The force is zero. When you analyze the pressure around the component go to probe and scroll down to component 1: x pressure force and so on to check the different forces that is acting on the object.

Hi
Thanks for the attempt, but:

Check the z pressure force, NOT x.

Zograth · July 3, 2014, 10:46

I checked them all. They are all zero.

Zograth · July 3, 2014, 11:04

I am using version 11. Maybe that's why.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pressure Force Integral	Steve R	FLUENT	1	February 4, 2013 14:07
Force can not converge	colopolo	CFX	13	October 4, 2011 23:03
how does Fluent calculate the pressure and viscous force vector?	Ralf Schmidt	FLUENT	2	May 17, 2010 16:49
what the result is negatif pressure at inlet	chong chee nan	FLUENT	0	December 29, 2001 06:13
Hydrostatic pressure in 2-phase flow modeling (CFX4.2)	HB &DS	CFX	0	January 9, 2000 14:19

July 2, 2014, 15:20		#2
Zograth New Member frode gimsøy Join Date: Jun 2014 Posts: 9 Rep Power: 12	Isn't that the pressure from the fluid on itself? There's alot of pressure on the bottom of the ocean.

July 2, 2014, 19:30		#3
Zograth New Member frode gimsøy Join Date: Jun 2014 Posts: 9 Rep Power: 12	You can analyze the pressure acting on the component by checking it in "output" for the component. Then you will see that the pressure is zero.

July 3, 2014, 08:18		#5
Zograth New Member frode gimsøy Join Date: Jun 2014 Posts: 9 Rep Power: 12	I tested your prepin. The force is zero. When you analyze the pressure around the component go to probe and scroll down to component 1: x pressure force and so on to check the different forces that is acting on the object.

July 3, 2014, 10:46		#7
Zograth New Member frode gimsøy Join Date: Jun 2014 Posts: 9 Rep Power: 12	I checked them all. They are all zero.

July 3, 2014, 11:04		#8
Zograth New Member frode gimsøy Join Date: Jun 2014 Posts: 9 Rep Power: 12	I am using version 11. Maybe that's why.