how to give boundary condition....urgent plz reply frnds

pks126 · September 13, 2012, 08:24

i have two cases first one with clean inlet flow compressor and second one is distorted flow compressor (using distorted screen).

First case inlet axial velocity is uniform/constant.

Second case i have generated inlet axial velocity profile which changes circumferentially.

i know values at design point rpm, mass flow, axial velocity(distorted n undistorted both)
what is the basic/logic behind using boundary condition at inlet & outlet?
Total P Total T static P static T Mass flow velocity are the option available in CFX while choosing BC.

thanks & regards
Prashant

ghorrocks · September 13, 2012, 19:15

Have a look at the best practices guide for turbo machinery modelling. It is included in the CFX documentation.

ghorrocks · September 13, 2012, 19:15

Have a look at the best practices guide for turbo machinery modelling. It is included in the CFX documentation.

September 13, 2012, 08:24	how to give boundary condition....urgent plz reply frnds	#1
pks126 New Member Prashant Kumar Singh Join Date: Jun 2012 Location: IIT Bombay Posts: 19 Rep Power: 13	i have two cases first one with clean inlet flow compressor and second one is distorted flow compressor (using distorted screen). First case inlet axial velocity is uniform/constant. Second case i have generated inlet axial velocity profile which changes circumferentially. i know values at design point rpm, mass flow, axial velocity(distorted n undistorted both) what is the basic/logic behind using boundary condition at inlet & outlet? Total P Total T static P static T Mass flow velocity are the option available in CFX while choosing BC. thanks & regards Prashant

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September 13, 2012, 19:15		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Have a look at the best practices guide for turbo machinery modelling. It is included in the CFX documentation.