CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

gambit open channel geometry

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 21, 2009, 12:54
Question gambit open channel geometry
New Member
Thomas Plehn
Join Date: Jul 2009
Posts: 2
Rep Power: 0
tplehn is on a distinguished road
I have read numerous comments on how to set the boundary conditions for open channel flow using VOF. My problem is to create an appropriate geometry in gambit, because following my last experience, only closed volumes can be meshed and I wonder how to create something that is open and mesh its interior.
Please explain how the simplest possible open channel geometry can be created, preferably in 2d.
tplehn is offline   Reply With Quote

Old   July 21, 2009, 13:04
Lightbulb workaround solution
New Member
Thomas Plehn
Join Date: Jul 2009
Posts: 2
Rep Power: 0
tplehn is on a distinguished road
My workaround was to not use the openchannel flow option in VOF and instead using two different velocity inlets, one for phase1 and one for phase2. This seems to work when combined with one pressure outlet. Please note that the geometry is a closed rectangle with inflow on the left and outflow on the right. In the middle there is a small obstacle because I want to study the hydraulic jump for an over critical (Fr>1) flow.
tplehn is offline   Reply With Quote


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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
open channel problem (free surface) Andy Chen FLUENT 4 July 10, 2009 02:20
Open Channel Boundary Conditions via journal Matteo FLUENT 0 January 21, 2008 12:05
Gambit error on linux: Unable to open file ... Wim Heirwegh FLUENT 1 October 10, 2007 12:06
Open channel flow Walid Main CFD Forum 1 July 31, 2006 01:01
Creating a Geometry in GAMBIT Sridhar FLUENT 2 November 26, 2001 11:11

All times are GMT -4. The time now is 16:04.