CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

Question concerning flow3D

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

LinkBack Thread Tools Display Modes
Old   October 1, 2007, 16:00
Default Question concerning flow3D
Julian Gacek
Posts: n/a
Hi all,

I have a question concerning Flow3D but indeed, I think it can be applied to different types of 3D fluid modelling software. My question is this: how do I diminish the impact or eliminate all together, a wave that propagates along the computational domain and reflects off the boundaries, that is created at the beginning of a simulation of free surface flow? Initial conditions for the simulations included gradual starting of the flow until the desired conditions had been reached but with no success. Also artifically increasing viscosity to dissipate the excess energy has been tried with no success either. The one thing that did work was using an outflow boundary condition (a boundary condition used for wave simulations that allows the wave to exit the domain). The problem is, this boundary condition gives unrealistic flows.

Thanks for your help!
  Reply With Quote


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
Unanswered question niklas OpenFOAM 2 July 31, 2013 16:03
how to set joints in flow3d gxwdaq FLOW-3D 1 March 12, 2011 18:45
question about flow3d MM Main CFD Forum 3 July 11, 2007 07:20
CHANNEL FLOW: a question and a request Carlos Main CFD Forum 4 August 23, 2002 05:55
question K.L.Huang Siemens 1 March 29, 2000 04:57

All times are GMT -4. The time now is 13:07.