centrifugal comperessor

abdollah · June 15, 2016, 20:50

hi guys
im new in cfx i have a centrifugal compressor (impeller and vaneless diffuser ) for simulate its a transonic inlet high pressure comp (srv2). i used total temp and total pressure for inlet and static pressure for outlet and i did not use the frozen rotor to separate the impeller and diffuser i just considered them as an integrated zone (both rotating).i have an issue in my results:
1. outlet makh number is to high (2.9)
2.the presser ratio is little high from the test experiment 2 units
any body can help me?
thanks.

ghorrocks · June 16, 2016, 07:08

FAQ: http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F

And please do not post many identical posts again. I have deleted the duplicate post.

June 15, 2016, 20:50	centrifugal comperessor	#1
abdollah New Member abdollah Join Date: Jun 2016 Posts: 1 Rep Power: 0	hi guys im new in cfx i have a centrifugal compressor (impeller and vaneless diffuser ) for simulate its a transonic inlet high pressure comp (srv2). i used total temp and total pressure for inlet and static pressure for outlet and i did not use the frozen rotor to separate the impeller and diffuser i just considered them as an integrated zone (both rotating).i have an issue in my results: 1. outlet makh number is to high (2.9) 2.the presser ratio is little high from the test experiment 2 units any body can help me? thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Collection of open testcases of centrifugal compressors	doublestrong	ANSYS	3	January 17, 2018 16:22
Collection of open testcases of centrifugal compressors	doublestrong	Main CFD Forum	0	May 5, 2016 12:26
centrifugal pump	Chalghoum	CFX	18	April 16, 2014 06:37
Autoblade centrifugal pump template	mahdi balali	Fidelity CFD	3	February 18, 2014 08:56
Centrifugal Pump Cavitation problem or not.	ismael.s	CFX	13	February 27, 2012 08:00

June 16, 2016, 07:08		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,816 Rep Power: 144	FAQ: http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F And please do not post many identical posts again. I have deleted the duplicate post.