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Showing results 1 to 11 of 11 Search took 0.00 seconds. Search: Posts Made By: feizaghaee

Forum: CFX February 24, 2010, 04:23

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee there are 4 secondary flows in the plane normal... there are 4 secondary flows in the plane normal to the main direction flow. directions of these flows are exactly as same as attached file but vice versa. these secondary flows make max velocity...

Forum: CFX February 24, 2010, 03:59

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee diffrerences between Reynolds stresses result in... diffrerences between Reynolds stresses result in this scondary flows but CFX calculates these flows inversely i don't know why.

Forum: CFX February 23, 2010, 06:22

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee yes, they are coming from Reynolds stresses. ... yes, they are coming from Reynolds stresses. what do you mean by "These are tricky things to get right, you may need to tweak some model constants" ?

Forum: CFX February 22, 2010, 03:01

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee i finally understand the reason of this problem.... i finally understand the reason of this problem. the secondary flows in velocity field are exactly inverse (attached pic). does any body know what's the problem?

Forum: CFX February 20, 2010, 12:47

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee i'm modeling a channel with water and air flow.... i'm modeling a channel with water and air flow. the secondary flows cause max velocity dosen't occur at top of the flow.

Forum: CFX February 19, 2010, 03:52

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee but i've checked with different size and the... but i've checked with different size and the results was same. i've worked with .85 m long meshes but the result was exactly as same as meshes with .19 m long. the turbulence did'nt affect the...

Forum: CFX February 18, 2010, 01:51

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee the channel is toward the Z direction and i use... the channel is toward the Z direction and i use hexa mesh. the hexa meshes have .2 m long in Z direction and in the XY plane have a shape like attached picture. the finer mesh is around the free...

Forum: CFX February 18, 2010, 01:28

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee no i mean the max velocity must occurs at the .7... no i mean the max velocity must occurs at the .7 hight of water from bottom of channel.

Forum: CFX February 16, 2010, 08:01

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee it's not correct because the max velocity occures... it's not correct because the max velocity occures at .9 y (depth) from bottom of the channel

Forum: CFX February 16, 2010, 00:48

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee does anybody know what's the reason of this... does anybody know what's the reason of this problem??????

Forum: CFX February 15, 2010, 15:50

Replies: 20 Velocity field problem Views: 4,043 Posted By feizaghaee Velocity field problem hi. i work with cfx 12 and i'm trying to simulate a free surface flow in a rectanular channel with ssg turbulance model. but there is something rong with the velocity field. i use homogeneous...

Showing results 1 to 11 of 11

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