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February 16, 2015, 07:58 |
Compressor Surge Analysis- CFX
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#1 |
New Member
Prakhar
Join Date: Dec 2013
Posts: 16
Rep Power: 12 |
Hi,
I am working on comparing the surge behavior of a compressor with some design modifications. I am using a single blade passage for the same. I have my simulations running, but I need to compare the surge behavior of the same. How can I do that ? I read in a few papers to monitor the pressure fluctuations at a boundary and these variations can give an indication of stability. How can I do this? Or is there any other method I can use? Looking forward to replies Regards Prakhar |
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February 16, 2015, 16:29 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,829
Rep Power: 144 |
Have you read the best practices guide in the CFX Reference manual? It gives lots of information about these sort of models.
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February 17, 2015, 04:15 |
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#3 | |
New Member
Prakhar
Join Date: Dec 2013
Posts: 16
Rep Power: 12 |
Quote:
Yes I have read the best practice guide, I agree it gives a lot of insight but unfortunately I could not find my answer there. I am simulating two centrifugal compressor design's and need to compare their surge behavior ( low mass flow rate stability). I read some papers on the same which said to monitor or plot the pressure variation at a boundary. Comparison between the amplitude of oscillations can indicate the marginal stability of performance. Is this correct?? If yes how can I monitor the pressure? Is there any other method to predict/ monitor the compressor surge? Regards Prakhar |
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February 17, 2015, 17:07 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,829
Rep Power: 144 |
I am not an expert on compressor design. If you have quality research papers which describe a method as you describe then that sounds like a good thing to try.
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February 18, 2015, 03:53 |
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#5 |
Senior Member
Thomas MADELEINE
Join Date: Oct 2014
Posts: 126
Rep Power: 12 |
If the paper is available online, can you send a link to it please ?
I am very interested about it |
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Tags |
cfx, compressor, stability analysis, surge |
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