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http://dx.doi.org/10.6108/KSPE.2016.20.5.077

A Study on the Pressure Oscillations in the High-Subsonic Cavity Flows over a Curved Wall  

Ye, A Ran (Department of Mechanical Engineering, Andong National University)
Lee, Ik In (Department of Mechanical Engineering, Andong National University)
Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
Kim, Heuy Dong (Department of Mechanical Engineering, Andong National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.20, no.5, 2016 , pp. 77-83 More about this Journal
Abstract
A considerable amount of researches has been performed to investigate the flow characteristics produced in the cavity system over straight wall. However, many practical applications of the cavity flows are found on curved walls, which are strongly subject to the centrifugal force effects. No work has been made on the cavity flows on the curved wall to date. In the present study, a computational fluid dynamics method has been applied to investigate the cavity flows over curved walls at Mach numbers in range of 0.4 to 0.8. The aspect ratio of the cavity was fixed at L/H=3, but the radius of curvature of the curved wall is changed in considering the real engineering practice. The results reveal that the pressure oscillations in the curved walls are stronger than those in the straight wall. It is found that the ratio of curvature of the curved wall significantly affects the unsteady flow characteristics inside the cavity.
Keywords
Cavity Flow; Compressible Flow; Pressure Oscillation; High-Subsonic Flow;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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