Access to arrays of Pressure matrix in CFX

omidiut · October 12, 2011, 09:45

Hi all
I'm trying to simulate flow over airfoil. this airfoil has a moving surface and the relation that specify mesh motion of this surface based on pressure distribution on surface. in this relation i need to access the arrays of pressure in this surface, such as pressure on a line on surface of airfoil. How can i do this?

Thanks, best regards.

ghorrocks · October 12, 2011, 20:13

Have a look at the rigid body motion example tutorials which come with CFX. You will need V13, it was not in previous versions.

omidiut · October 13, 2011, 04:26

Thanks for reply of my question ghorrocks,
How does it work in ansys 13?

ghorrocks · October 13, 2011, 06:04

As I said, have a look at the tutorials.

omidiut · October 13, 2011, 19:16

I studied that, but i can't find any things useful for my case. i need use pressure with argument as Pressure(x,y,z). for example pressure on each node of a line or edge in inlet. How can i do this?

Best regards.

omidiut · October 14, 2011, 13:05

How can i specify an expression that do this: the pressure on 0<x<2 and 0<y<2 saved to an expression ?( Pressure on each node of one surface)

October 12, 2011, 09:45	Access to arrays of Pressure matrix in CFX	#1
omidiut Senior Member omid Join Date: Apr 2011 Posts: 105 Rep Power: 15	Hi all I'm trying to simulate flow over airfoil. this airfoil has a moving surface and the relation that specify mesh motion of this surface based on pressure distribution on surface. in this relation i need to access the arrays of pressure in this surface, such as pressure on a line on surface of airfoil. How can i do this? Thanks, best regards.

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October 12, 2011, 20:13		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	Have a look at the rigid body motion example tutorials which come with CFX. You will need V13, it was not in previous versions.

October 13, 2011, 04:26		#3
omidiut Senior Member omid Join Date: Apr 2011 Posts: 105 Rep Power: 15	Thanks for reply of my question ghorrocks, How does it work in ansys 13?

October 13, 2011, 06:04		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	As I said, have a look at the tutorials.

October 13, 2011, 19:16		#5
omidiut Senior Member omid Join Date: Apr 2011 Posts: 105 Rep Power: 15	I studied that, but i can't find any things useful for my case. i need use pressure with argument as Pressure(x,y,z). for example pressure on each node of a line or edge in inlet. How can i do this? Best regards.

October 14, 2011, 13:05		#6
omidiut Senior Member omid Join Date: Apr 2011 Posts: 105 Rep Power: 15	How can i specify an expression that do this: the pressure on 0<x<2 and 0<y<2 saved to an expression ?( Pressure on each node of one surface)