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

Help on project!

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 15, 2004, 21:46
Default Help on project!
  #1
jacky
Guest
 
Posts: n/a
I reqired to create a 3D model and determine the air mass flow through the throttle body, which basically is a converging-diverging nozzle. what i did so far was created a cylinder as domain with the vol of the throttle deducted at the end of it, then i mashed with Hybrid/tri, then set the 3 sides of the cylinder as pressure inlet (1 atmo), the sides of throttle as wall and the end of the diverging section as pressure outlet. then i ran a inviscous flow model, but the solution diverge after 10 iterations and have floating point errors, also the velocity of flow is not right. can anyone explain to me what floating point error is and how imporant convergant is? also what is the different between pressure-far field and pressure inlet and outflow-vent. do you racken i have set up the model correctly?
  Reply With Quote

Old   May 19, 2004, 08:04
Default Re: Help on project!
  #2
Andy
Guest
 
Posts: n/a
try www.eng-tips.com

They've got a cfd forum as well as a few cfd specialists who hang out in the engine forum that can probably help.

Andy
  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
The FOAM Documentation Project - SHUT-DOWN holger_marschall OpenFOAM 242 March 7, 2013 12:30
Extend Project Release 1.6-ext hjasak OpenFOAM Announcements from Other Sources 33 July 14, 2011 18:54
PhD Project: Computational Modelling of Tidal Turbines grtabor OpenFOAM 1 May 31, 2011 10:28
The OpenFOAM extensions project mbeaudoin OpenFOAM 16 October 9, 2007 09:33
CFD project idea John Cleveland Main CFD Forum 4 March 8, 2005 12:55


All times are GMT -4. The time now is 09:11.