CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

1D unsteady flow boundary and initial conditions

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 7, 2011, 06:21
Unhappy 1D unsteady flow boundary and initial conditions
  #1
Senior Member
 
Join Date: Jun 2010
Posts: 101
Rep Power: 7
Hooman is on a distinguished road
Hi,

I am trying to write a code for an unsteady flow problem of a 1D fluid piston acting on a spring. I can't decide on my boundary and initial conditions. I've set my inlet velocity at all times to 0.1m/s so if v(x,t) , I've set v(0,t) = 0.1m/s. I'm not sure at all on how to set the rest of the boundary conditions. I noticed that to be able to solve my equations I need the initial velocity at all x's. Can I do that? Also for boundary conditions can I decide on something like v(0,t) = v(1,t)?

I really appreciate anybody's help as soon as possible.
Hooman is offline   Reply With Quote

Reply

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
Wind turbine simulation Saturn CFX 34 October 16, 2014 05:27
transsonic nozzle with rhoSimpleFoam Unseen OpenFOAM Running, Solving & CFD 7 April 16, 2014 03:38
problem with Min/max rho tH3f0rC3 OpenFOAM 7 February 23, 2013 06:37
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 05:05
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55


All times are GMT -4. The time now is 20:21.