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Difference between compressible and incompressible flow 
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#1
Sep2908, 04:32 AM

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Hi all
I am really confused with what is the actual meaning of compressible and incompressible flow? 


#2
Sep2908, 06:31 AM

Sci Advisor
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In a nutshell: Does density of the media change significantly?



#3
Sep2908, 06:43 AM

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Thanks
P: 26,148

Hi mahaesh!
Incompressible flow is flow whose density is constant along any streamline. For details see http://en.wikipedia.org/wiki/Compressible_flow 


#4
Sep2908, 07:28 AM

P: 12

Difference between compressible and incompressible flow
Hi tinytim
Thanks for your reply but i am confusing because combustion is a compressible flow due to variation in density but in Computational Fluid dynamics analysis combustion treated as incompressible flow Why? 


#5
Sep2908, 05:49 PM

Sci Advisor
P: 5,095

I am not familiar with what exactly you are doing, but in a constant flow process, like in a jet engine, there is actually a very small pressure drop across the burner (in a well designed burner). I wonder if that doesn't have something to do with what you are looking at.



#6
Sep2908, 06:47 PM

P: 1,672




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