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

froud number open channel flow

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 28, 2009, 05:39
Default froud number open channel flow
  #1
New Member
 
Join Date: Dec 2009
Posts: 2
Rep Power: 0
sepp193 is on a distinguished road
Hi!
I've managed to simulate a standing wave in a river in fluent. I now have the simulation data and would like to obtain the height of the open surface and the froud number.
Does anybody know how to do this?
Thanks
sepp193 is offline   Reply With Quote

Old   January 4, 2010, 16:04
Default
  #2
New Member
 
Join Date: Dec 2009
Posts: 2
Rep Power: 0
sepp193 is on a distinguished road
Does anybody know anything??
sepp193 is offline   Reply With Quote

Old   January 6, 2010, 15:09
Default
  #3
Senior Member
 
Jouke de Baar
Join Date: Oct 2009
Posts: 122
Rep Power: 7
jack1980 is on a distinguished road
Sorry I'm not sure I understand your problem correctly, but the answers might be:

Froude Number = u / sqrt(g*d)

u = upstream velocity
g = 9.81 m/s^2
d = water depth

The height of the free surface: The easy straightforward way (for 2D problem) is to plot a single contour of the phase for VOF=0.5, print the plot and measure the height with a ruler. The harder, more accurate way is to export your data to tecplot, although I haven't done this myself yet.
jack1980 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
Boundary condition problem for open channel flow Andy CFX 8 October 1, 2012 07:45
Yacht in Open Channel Flow andreimour FLUENT 1 October 14, 2010 23:54
open channel flow with a layer of air Naomi CFX 1 November 15, 2008 07:34
Open Channel Flow Ryan FLUENT 1 March 17, 2008 11:10
Open channel flow with FLUENT 6.1.22 Walid FLUENT 0 July 11, 2006 02:16


All times are GMT -4. The time now is 02:58.