CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

pressure equation in Jet simulation

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 9, 2010, 13:18
Default pressure equation in Jet simulation
  #1
Senior Member
 
Suresh kumar Kannan
Join Date: Mar 2009
Location: Luxembourg, Luxembourg, Luxembourg
Posts: 129
Rep Power: 17
kumar is on a distinguished road
Hello,
I am solving a three dimensional liquid jet using interFoam. I am using LES. I have a cylindrical nozzle which then opens into a cylinder. I have applied wall conditions at the nozzle walls and symmetry plane at the circumference of the cylinder. I use a velcoity inlet coniditon. at the inlet it is zeroGradient for pressure and fixed value 0 at the outlet.

But after i started my simulation, i noticed that my pressure equation is requiring many iterations to converge, and it is running for almost an hour for just one time step. My simulation has become very slow.

Anybody who had similar experience can give some suggestions on making the simulation faster.

regards
K.Suresh kumar
kumar is offline   Reply With Quote

Reply


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
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 06:21
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 07:27
Pressure BC for combustion chamber Giuki FLUENT 1 July 19, 2011 12:35
Pressure enigma. Sara Main CFD Forum 22 July 30, 2009 05:46
High pressure water jet CK FLOW-3D 3 December 10, 2008 10:19


All times are GMT -4. The time now is 03:08.