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http://dx.doi.org/10.5139/JKSAS.2004.32.10.001

An Experimental Study of Mutual Relation between Wake and Boundary Layer of a Flat Plate; Mean Velocity Field  

Kim, Dong-Ha (한국항공대학교 항공우주 및 기계공학과)
Chang, Jo-Won (한국항공대학교 항공운항학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.10, 2004 , pp. 1-11 More about this Journal
Abstract
An experimental study was carried out to investigate the influence of flow conditions of a boundary layer on the near-wake of a flat plate. Various attaching positions of tripping wires were selected to change flow conditions on a boundary layer. Laminar, transitional, and turbulent boundary layer conditions at 0.98C from the leading edge are imposed to investigate the evolution of symmetric and asymmetric wake. An x-type hot-wire probe(55P61) is employed to measure at 8 stations of the near-wake region. Measured mean velocity distributions are presented in terms of similarity parameter. It is found that the symmetric wake collapses well to the universal profile in the central part of the wake. However, the universal profile is not suitable in describing an asymmetric wake.
Keywords
Flat Plate; Near-Wake; Similarity Parameter; Tripping Wire;
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