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

Wave generation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 30, 2007, 16:54
Default Wave generation
  #1
Dan
Guest
 
Posts: n/a
Does anyone have experience creating water waves? I want to look at waves striking a dock piling.

I started by writing a function to vary the water height at my inlet using a simple sine function, the wave doesn't propogate downstream however, instead it reverses back on itself and after awhile disappears

  Reply With Quote

Old   December 1, 2007, 12:52
Default Re: Wave generation
  #2
andy
Guest
 
Posts: n/a
You need to specify more than a displacement as an initial condition for travelling waves. A left moving wave and right moving wave may well have the same shape (displacement) at an instant in time but they will have different particle velocities.By (presumably) specifying a zero particle velocity you have not specified any overall movement of mechanical energy in one direction or the other (think force*velocity). Often this will give you equal right and left moving waves (i.e. drop pebble in water) but if you are doing this at the boundary then your boundary conditions may well interfere.

  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
Looking for UDF files of the tutorial "Simulation of Wave Generation in a Tank" seucj Fluent UDF and Scheme Programming 8 June 24, 2015 03:26
need tutorial files(Simulation of Wave Generation in a Tank) gholamghar FLUENT 32 October 5, 2014 14:31
Wave generation The_Architect FLUENT 3 August 16, 2011 03:39
Wave generation using open channel wave boundary condition krishnaprasad Main CFD Forum 0 March 3, 2011 22:28
need tutorial files(Simulation of Wave Generation in a Tank) gholamghar FLUENT 0 March 28, 2009 04:08


All times are GMT -4. The time now is 12:02.