|
[Sponsors] |
April 14, 2009, 12:05 |
Fully developed flow profile
|
#1 |
New Member
Join Date: Mar 2009
Posts: 3
Rep Power: 17 |
Hi All,
I tried to get the fully developed velocity profile in a uniform diameter pipe. Inlet = Velocity profile Outlet = Static Pressure = 0 The flow mach number is around 0.35, so I included compressiblity in CFX. when I plotted the profile after 40D, 50D from inlet, I dont get the fully developed profile. The velocity keep on increasing. I think it is due to inclusion of compressiblity(Velocity increases to satisfy continuity equation). I dont think it would make so much difference in velocity in real situation. Am I doing any thing wrong? what you think? Thanks |
|
April 18, 2009, 02:32 |
|
#2 |
Senior Member
N/A
Join Date: Mar 2009
Posts: 189
Rep Power: 17 |
How much does it deviate from fully developed flow profile ? Obviously you cannot expect the exact profile since density changes will cause increase or decrease in the velocity.
|
|
April 19, 2009, 07:55 |
Fully developed flow profile-compressibility
|
#3 |
New Member
Join Date: Mar 2009
Posts: 3
Rep Power: 17 |
Thanks for your reply. I could see a 7% increase in average velocity across area/line @70D from Inlet when compared with fully developed profile with out compressibility.
|
|
May 20, 2009, 23:21 |
|
#4 | |
Senior Member
Jack
Join Date: Mar 2009
Posts: 106
Rep Power: 16 |
Do you have these results from experimental data? I´ve got to validate ANSYS CFX, using only forced convection between plates.
Rogerio. Quote:
|
||
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Simulating fully developed flow in a pipe | Tim Donohue | CFX | 1 | November 20, 2007 21:24 |
fully developed laminar flow | prasat | Main CFD Forum | 1 | March 6, 2003 08:39 |
fully developed laminar pipe flow | wendy | CFX | 11 | January 16, 2002 18:12 |
profile for fully developed turbulent duct flow | jeff | Main CFD Forum | 1 | November 14, 2001 22:35 |
fully developed turbulent flow in a pipe | Dipak | Phoenics | 3 | July 20, 2000 06:53 |