JSME International Journal Series B Fluids and Thermal Engineering
Online ISSN : 1347-5371
Print ISSN : 1340-8054
ISSN-L : 1340-8054
PAPERS
Management of a Plane Turbulent Wall Jet by the Large-Eddy Break-up Device
Shinsuke MOCHIZUKISeiji YAMADAHideo OSAKA
Author information
JOURNALS FREE ACCESS

2006 Volume 49 Issue 4 Pages 921-927

Details
Abstract

A Large Eddy Break-up (LEBU) device was applied to the flow management of a plane turbulent wall jet. The LEBU device was positioned at three different distances from the wall and the mean velocity, Reynolds shear stress profiles and wall shear stress were measured. The experimental data show that the LEBU device reduces the thickness of the shear layer and the magnitude of the Reynolds shear stress. The wall shear stress tends to be reduced even if the LEBU device is placed in the outer layer. These effects are most significant when the LEBU device is placed at the height at which the turbulent production term reaches its maximum. The length scale of the large eddies is reduced in manipulated flows, particularly in the spanwise direction.

Information related to the author
© 2006 by The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top