Engineering Mechanics

Proceedings Vol. 14 (2008)

ENGINEERING MECHANICS 2008

Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Jonáš P., Mazur O., Uruba V.
pages 114 - +13p., full text

The effects of the roughness elements distributed over a wall (WR) and of the free stream turbulence (FST) on laminar turbulent boundary layer transition are known long ago. In general they both accelerate the transition process under otherwise equal conditions and thus affect the boundary layer development into turbulent boundary layer. Experimental investigations of the effects in question are beneficial even if they are individually acting. So far the authors are not aware of the investigation of the joint action of the mentioned influences even though they may be important in many engineering devices.

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