Abstract A study on the relation between the wake inlet conditions and the wake characteristics of a bluff body by means of Particle Image Velocimetry is presented. The wake inlet condition, being a laminar boundary layer at the trailing edge of the body, are varied by means of wall-suction. Measurements are carried out at based on the body thickness h. The induced radius of curvature of the streamlines is shown to be a promising parameter in explaining the increase in base drag and decrease in vortex shedding frequency associated with a thinner boundary layer.
An Experimental Study on the Relation Between the Wake Inlet Conditions and the Near Wake Topology
Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015) ; 2 ; 133-138
Springer Proceedings in Physics ; 185 , 2
2016-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
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