CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   need help! for vane rotary compressor cfd (http://www.cfd-online.com/Forums/fluent/108969-need-help-vane-rotary-compressor-cfd.html)

arebung November 6, 2012 05:11

need help! for vane rotary compressor cfd
 
hello..i want to simulate suction process for rotary vane compressor..it is possible to use ansys fluent..and can you guide me in doing that..im a student..this is for my master project..t.q

vicarious November 7, 2012 16:05

Yes it is. You can simulate the flow involved rotor & stator interaction with Multiple Reference Frame approach (MRF).

cfd seeker November 8, 2012 03:04

For advise on my part, I think you need to change your project because it is tough ask for masters scope because

1. there is a translational motion of vanes in and out of vane cavity, to incorporate it you need to write a Udf
2. For Rotational motion of the rotor, you need to write another Udf
3. you need to adjust them in such a way that during rotational motion the vanes translational motion follow the cavities
4. I haven't found any good reference related to this work in literature, i always believe one should first do the literature review and make sure that he has enough references and data.

Far November 8, 2012 10:35

CFX has better options for this. See this

http://www.edr.no/blogg/ansys_blogge...mmersed_solids

https://www.sharcnet.ca/Software/Flu...solidsmod.html

vicarious November 8, 2012 10:54

Quote:

Originally Posted by cfd seeker (Post 390929)
For advise on my part, I think you need to change your project because it is tough ask for masters scope because

1. there is a translational motion of vanes in and out of vane cavity, to incorporate it you need to write a Udf
2. For Rotational motion of the rotor, you need to write another Udf
3. you need to adjust them in such a way that during rotational motion the vanes translational motion follow the cavities
4. I haven't found any good reference related to this work in literature, i always believe one should first do the literature review and make sure that he has enough references and data.

I'm wandering why does one need to write UDF for rotor motion. Because I've already simulated a stage of a test axial compressor using sliding mesh method. It just needed a rotor cascade attached to the stator cascade and got linked from top and bottom. Giving a velocity to the rotor and it moves relative to the stator cascade.

imran9697 November 10, 2012 02:34

Axial compressor is different from rotary vane compressor, it can be done with simple sliding mesh technique. you can check rotary vane compressor working on internet and you will agree with what CFD seeker has posted. You can model it using immersed solid approach posted by far, but i am unsure about its experimental validation because it can not account for in and out motion of vanes in the cavity.

vicarious November 10, 2012 06:20

Quote:

Originally Posted by imran9697 (Post 391359)
Axial compressor is different from rotary vane compressor, it can be done with simple sliding mesh technique. you can check rotary vane compressor working on internet and you will agree with what CFD seeker has posted. You can model it using immersed solid approach posted by far, but i am unsure about its experimental validation because it can not account for in and out motion of vanes in the cavity.

Thanks for the heads up.

arebung November 19, 2012 23:28

thanks for the link..if i want to simulate the suction port and discharge port of the compressor how im going to validate this?

pramod January 24, 2013 13:11

What about flownex? Can it be done using flownex?

Striving February 25, 2014 01:26

Quote:

Originally Posted by pramod (Post 403830)
What about flownex? Can it be done using flownex?

do you have flownex? i need it ,i think i can communicate with you


All times are GMT -4. The time now is 12:04.