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

coef of drag and Re

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

LinkBack Thread Tools Display Modes
Old   November 2, 2001, 16:49
Default coef of drag and Re
Posts: n/a
I am trying to work through the derivation of why Cd is proportional to 1/Re at low Re, directly related....why Cd is constant with respect to Re at high Re. Any help would be greatly appreciated.
  Reply With Quote

Old   November 3, 2001, 03:45
Default Re: coef of drag and Re
Jongdae Kim
Posts: n/a
How to define your Re. number?

Re=U*d/nu ?

In your case, what is d ? Are you studying on the bluff body aerodynamics? Depends on the body shape (geometry), the values of coefficients are different.

Now, I almost finished calculating Reynolds number dependency analysis of two-dimensional square cylinder using large eddy simulation.

Reynolds number range is from 20 to 22000 and the aerodynamic coefficients are Cd_mean, Cl_mean, Cd_rms, Cl_rms, Strouhal Number. Pressure on cylinder and velocity fields around cylinder are also analyzed.

If you have interesting on this fields, please send e-mail.
  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

All times are GMT -4. The time now is 21:10.