CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Autodesk Simulation CFD

CFDesign V11 -- Reverse flow at outlet

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 17, 2011, 09:36
Default CFDesign V11 -- Reverse flow at outlet
  #1
New Member
 
Maruthi Chaluvadi
Join Date: Jun 2011
Posts: 1
Rep Power: 0
maruthiv is on a distinguished road
Hi,

I am trying to run an analysis on a flow path of Solenoid valve in CFDesign.. The boundary conditions are :

Inlet (2 intlets): 185 KPa and 80C (temp)
Outlet (4 outlets) :0Kpa (2 circular and 2 ellitical gemoetry)



Now after running the analysis, at the outlet if i see the vectors, they show flow out for half the outlet and flow in the backward direction for the other half. Is this beacuse of circulation, vorticity? Do they effect ??

How can i get rid of this flow vectors showing back flow. I tried extending the outlet so the flow will be developed. But that is effecting my flow rate at outlet surface which is what i am trying to calculate.


Please give your insight!!

Thank you.
Maruthi
maruthiv is offline   Reply With Quote

Old   June 17, 2011, 09:38
Default
  #2
New Member
 
Join Date: Dec 2010
Posts: 4
Rep Power: 15
ayroman03 is on a distinguished road
Have you got a pic?
ayroman03 is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 15:45
Outlet boundary conditions for unsteady flow Bjorn B Main CFD Forum 3 January 11, 2006 05:42
Reverse flow in the VOF model yan FLUENT 1 May 26, 2005 09:14
reverse flow P.R.Naren FLUENT 5 May 19, 2005 01:15
UDF in Fluent to Match Mass Flow at Pressure Outlet Jonas Larsson Main CFD Forum 1 April 29, 1999 10:44


All times are GMT -4. The time now is 03:05.