CFD Online Logo CFD Online URL
Home > Forums > Siemens

boundary conditions

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

LinkBack Thread Tools Display Modes
Old   November 18, 2005, 05:07
Default boundary conditions
Posts: n/a

I KNOW FLOW RATE and PRESSURE DROP(BETWEEN INLET AND OUTLET) Which B.Cs. should i select. the problem is of pipe flow with one inlet and one outlet.

Thanks in advance

  Reply With Quote

Old   November 18, 2005, 05:22
Default Re: boundary conditions
Posts: n/a
There's a relation ship between the flow rate and the pressure drop, so i think that in both way you should have the same results! the easiest way i think that's to use the pressure boundries for both inlet and outlet of the pipe.
  Reply With Quote

Old   November 21, 2005, 07:16
Default Re: boundary conditions
John Luo
Posts: n/a
Both are fine and should give you same results upon convergence. But fixed mass flow rate will normally converge faster.
  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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Burgerbs equation non constant Boundary Conditions Initial Conditions arkangel OpenFOAM Running, Solving & CFD 1 October 2, 2008 14:48
Boundary conditions for turbulent boundary layer Thomas FLUENT 1 June 17, 2008 05:14
boundary conditions for boundary layer flow A. Al-zoubi CFX 0 November 3, 2007 08:11
Integral boundary conditions turbulent intensitylength boundary conditions olesen OpenFOAM Running, Solving & CFD 0 July 27, 2006 07:18
boundary conditions Jason Jordan FLUENT 0 June 26, 2001 17:12

All times are GMT -4. The time now is 18:26.