CFD Online Logo CFD Online URL
Home > Forums > FLUENT

P ratio is correct, but Pressures at in and out lets are wrong!

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   July 7, 2014, 04:18
Question P ratio is correct, but Pressures at in and out lets are wrong!
Join Date: Nov 2013
Location: Finland
Posts: 51
Rep Power: 5
alirezame is on a distinguished road
Dear guys,

I am simulating a compressor, 3D, Unsteady, Density based with pressure ratio 2.5
I used mass flow inlet and pressure out let
after about 20000 iteration (5 cycle of rotor) and getting convergence, pressure ratio is correct, 2.478 but total and static pressure at inlet and out let are wrong.
I used pressure at out let 2.4 Mpa and initial gauge pressure at inlet abound 0.9 Mpa, but after convergence these about are changed to about 1.9 and 4.45 respectively. Operation condition pressure was set to zero
Any guide ?!?!
alirezame is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 15:38.