# The problem of streamlines!!!

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 March 19, 2016, 10:49 The problem of streamlines!!! #1 Senior Member   Aja Join Date: Nov 2013 Location: Hungary Posts: 380 Rep Power: 6 Hi, I am simulating a turbine Please see streamlines around blade in following figures. Mesh is structure and mesh (between the domains) is conformal and i also used this simulation but problem doesn't solved. How to solve this problem? I am grateful that guide me. Best. Aja Last edited by aja1345; March 21, 2016 at 01:21.

 March 19, 2016, 12:37 #2 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,329 Blog Entries: 6 Rep Power: 45 this is likely due to rotating and stationary domain.

March 19, 2016, 12:43
#3
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Aja
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Quote:
 Originally Posted by Far this is likely due to rotating and stationary domain.

There is between rotating and stationary domain. Is there any problem in that?

Last edited by aja1345; March 24, 2016 at 10:23.

March 19, 2016, 12:44
#4
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Sijal
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Quote:
 Originally Posted by aja1345 There is massive gradient between rotating and stationary domain. Is there any problem in that?
what sort of gradient? It would be much helpful if you can support text with pics....

March 19, 2016, 13:04
#5
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Aja
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Quote:
 Originally Posted by Far what sort of gradient? It would be much helpful if you can support text with pics....
I am simulating a axial-flow air turbine, namely, Wells turbine. solution is steady state.
This turbine have 8 blades((360/8)=45 deg=angle between blades). Due to the circumferential symmetry, only one eight of the annulus has been computed, imposing periodic boundary conditions in the tangential direction. In my model, the computational domain has been restricted in the axial direction to four chord lengths upstream and eight chord lengths downstream of the blade. Blades are symmetry(Naca00XX).

Computational domain is as follow:

I am grateful that guide me.

Last edited by aja1345; March 21, 2016 at 01:19.

 March 19, 2016, 13:39 #6 Senior Member   Aja Join Date: Nov 2013 Location: Hungary Posts: 380 Rep Power: 6 I want to obtain streamlines as follows (This pic is in a published paper). Last edited by aja1345; March 21, 2016 at 01:20.

 March 19, 2016, 23:19 #7 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,329 Blog Entries: 6 Rep Power: 45 take it to CFD post. It is problem of displaying data in two different zones i.e. stationary and rotating. Right now Fluent is showing data in rotating reference frame... aja1345 likes this.

March 19, 2016, 23:54
#8
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Aja
Join Date: Nov 2013
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Quote:
 Originally Posted by Far take it to CFD post. It is problem of displaying data in two different zones i.e. stationary and rotating. Right now Fluent is showing data in rotating reference frame...
Hi,

My language English is not very good.

What is your exact meaning of "take it to CFD post."? Can you explain more about CFD post?

Last edited by aja1345; March 24, 2016 at 10:23.

 March 20, 2016, 06:02 #9 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,329 Blog Entries: 6 Rep Power: 45 CFD Post is post processing software by ANSYS. It has more options than Fluent for post processing ... aja1345 likes this.

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