CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > Siemens

DFBI question

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

LinkBack Thread Tools Display Modes
Old   January 20, 2009, 13:10
Default DFBI question
Posts: n/a

My question is: on web tutorial for DFBI ship motion, the simulation was set as LAMINAR...but for me it isn't correct!! If i want the real motion (sink and trim) of the boat, I need to calculate the realhydrodynamics forces , so the simulation necessary must be set to TURBULENT!

And with turbulent model, is more difficult to make convergence of case!

It's wrong??
  Reply With Quote

Old   January 21, 2009, 16:26
Default Re: DFBI question
Posts: n/a
yep, you can not do that with turbolence, a pernos name axmantinetzan has the .sim file..... if you change teh laminar to turbo you can not convergence.... this is a problem of the solver
  Reply With Quote

Old   January 21, 2009, 17:02
Default Re: DFBI question
Posts: n/a
I have run turbulent dfbi without a problem (although not on this case)
  Reply With Quote

Old   January 21, 2009, 17:21
Default Re: DFBI question
Posts: n/a

What type of setting you impose?? k-epsilon?? Have you tested a ship hull?

Is match with experimental data??
  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
Info on DFBI for Ship Motion Simone Siemens 17 March 29, 2016 21:19
i need info on DFBI Eleazar Siemens 7 September 2, 2010 03:13
DFBI, turbulence model and ship motion ettax Siemens 1 June 4, 2010 12:31
VOF WAVE/ DFBI MAB Siemens 7 November 17, 2008 22:34
VOF WAVE/ DFBI MAB FLOW-3D 2 November 14, 2008 01:02

All times are GMT -4. The time now is 22:34.