Truck aerodynamics: zero shear BC -- CFD Online Discussion Forums

October 3, 2023, 10:32	Truck aerodynamics: zero shear BC	#1
anonymous turtle New Member Dean Graysiano Join Date: Oct 2023 Posts: 1 Rep Power: 0	Hi everyone, I am trying to model a truck-trailer with a moving cylinder on the rear edge that would freely rotate and reduce skin friction and energise the boundary layer, reducing pressure drag. I have modeled a rectangular prism with a curved rear edge and set the BC for the curved rear edge to zero shear. Any ideas why this would be increasing the total drag? I'm also trying to play around with a velocity equation at this surface but am not sure how to calculate it. Many thanks Last edited by anonymous turtle; October 4, 2023 at 02:30.

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 Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
shear rate and strain rate	Lilly	FLUENT	1	August 29, 2014 00:46
Turbulence Model, truck aerodynamics	helena	Main CFD Forum	3	December 3, 2010 04:29
Heavy Truck Aerodynamics Working Group Model	louisgag	OpenFOAM Running, Solving & CFD	1	August 25, 2010 14:40
shear stress scalar definitions?	Novak Elliott	CFX	0	April 6, 2003 01:45
What is the detail definition of wall shear stress	zjm	FLUENT	0	January 2, 2002 07:43

All times are GMT -4. The time now is 20:56.