CFD Online Logo CFD Online URL
Home > Forums > FLUENT

high drag value

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

LinkBack Thread Tools Display Modes
Old   April 5, 2005, 06:49
Default high drag value
Posts: n/a
hi i am modelling only the under water portion of planing craft. we are using sinkage and trim values obtained from experiments. at low speed fluent is giving drag comparable with experiments. but at high speeds(5m/s) the drag values are 5 times the experimental.

what should i do to get the correct drag.

i have tried using all the turbulence models and differnt domain and also using different mesh sizes.

expecting your reply asap

thanking u in advance

  Reply With Quote

Old   April 8, 2005, 19:27
Default Re: high drag value
Posts: n/a
Hi Sulfi,

Can you tell me your domain and your mesh size. Are you sure that your reference values are correct?

  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
Getting too high Drag Coefficients nicolarre OpenFOAM Running, Solving & CFD 10 August 10, 2014 11:55
drag coeff to high - kOmegaSST turbulence model RugbyGandalf OpenFOAM 5 February 22, 2011 03:35
high amount of drag coefficient. about 15????Is it okay? ndabir CFX 3 February 1, 2010 18:10
High drag coeff. estimated by Gambit+fluent M. suuri FLUENT 6 November 6, 2006 09:02
Multicomponent fluid Andrea CFX 2 October 11, 2004 05:12

All times are GMT -4. The time now is 12:23.