Aero-optical and flow measurements over a flat-windowed turret

被引：0
|
作者：
Gordeyev, Stanislav [1 ,3 ,4 ]
Hayden, Tim E. [2 ,4 ,5 ]
Jumper, Eric J. [1 ,3 ,4 ]
机构：
[1] University of Notre Dame, Notre Dame, IN 46556
[2] U.S. Air Force Academy, Colorado Springs, CO 80840
[3] Department of Aerospace and Mechanical Engineering
[4] AIAA
[5] Aeronautics Department
来源：
AIAA Journal | 2007年 / 45卷 / 02期
关键词：
An extensive investigation of the aberrating character of flow over a hemisphere-on-cylinder turret with a flat window was performed. Optical distortions over the window were measured using a two-dimensional wave front sensor and a Malley probe. The Malley probe measurements were complemented with simultaneous hot-wire measurements of the velocity field normal to the window at several points across its diameter. The tests were run for a fixed elevation for several azimuthal angles over a range of Mach numbers. The results provide the levels of unsteady optical aberration across the window; as well as the local thickness; intensity; and convective speed of the separated flow over the window. Results reveal that the optical distortions grow approximately with the square of the incoming Mach number multiplied by the freestream density; OPDrms; ∼; ρM2; as well as with the changing character of the aberrating flow with azimuth angle;
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摘要：
Journal article (JA)
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页码：347 / 357
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