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A Study on the Flow Control in a Wide Angle Diffuser by Installation of a Rectangular Prism  

Lee, Cheol-Jae (동명대학교 자동차공학과)
Cho, Dae-Hwan (목포해양대학교 기관시스템공학부)
Publication Information
Journal of the Korean Society of Mechanical Technology / v.13, no.4, 2011 , pp. 57-62 More about this Journal
Abstract
In this study, a experimental work to investigate the influence of a turbulent wake flow on the velocity distribution of a diffuser with PIV method. The turbulent wake is generated by a rectangular prism, which is installed at the inlet of a diffuser. The results show that the velocity recovery of the subsonic diffuser is dependent on the height and location of rectangular prism. It is found that a certain height of the rectangular prism to generate the turbulent wake give a better velocity recovery, compared with no rectangular prism.
Keywords
Rectangular Prism; Diffuser; Vortex; Passive Control; Particle Image Velocimetry(PIV); Wake;
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