Wall shear stress in channel flow-plus and minus -- CFD Online Discussion Forums

September 20, 2012, 16:18	Wall shear stress in channel flow-plus and minus	#1
CharlieTan84 New Member Charlie Tan Join Date: Sep 2011 Posts: 23 Rep Power: 14	Hello, Derivation of a wall shear stress for a channel flow results as a minus wall shear stress at the bottom of the wall and a plus at the top. Can someone please explain me how is this possible? Because intuitively thinking, they should be same, with a minus sign. Because at the top and the bottom, there is friction. Right?? Thank you very much!

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

All times are GMT -4. The time now is 00:19.