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An Experimental Study on the flow Characteristics of a Supersonic Turbine Cascade as the Leading Edge Shape and the Nozzle-Cascade Cap  

Cho Jong-Jae (부산대학교 항공우주공학과)
Kim Kui-Soon (부산대학교 항공우주공학과)
Kim Jin-Han (한국항공우주연구원 터보펌프개발그룹)
Jeong Eun-Hwan (한국항공우주연구원 터보펌프개발그룹)
Jeong Ho-Kyung (동명중공업(주))
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.9, no.4, 2005 , pp. 66-72 More about this Journal
Abstract
In this paper, a small supersonic wind tunnel is designed and built to study the flow characteristics of a supersonic impulse turbine cascade. The flow is visualized by means of a single pass Schlieren system. The supersonic cascade with 2-dimensional supersonic nozzle was tested for various blade leading edge shapes and gaps between the nozzle and cascade. Highly complicated flow patterns including shocks, nozzle-cascade interaction and shock boundary layer interactions are observed.
Keywords
Supersonic; Cascade; Visualization; Schlieren; Shock; Shadowgraph;
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