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Control of Supersonic Mixed-Compression Inlets Using Localized Arc Filament Plasma Actuators

Webb, Nathan Joseph
http://rave.ohiolink.edu/etdc/view?acc_num=osu1274714729

Abstract Details

2010, Master of Science, Ohio State University, Mechanical Engineering.
Shock wave/boundary layer interactions (SWBLIs) occur in many supersonic internal flow applications, specifically in mixed compression inlets, as well as in external flows. In this study a nominally Mach 2 mixed compression inlet is modeled by two experimental setups: 1) A compression ramp-generated impinging SWBLI, and 2) a variable angle wedge (VAW) generated impinging SWBLI. The compression ramp and the wedge both serve to generate an oblique shock wave that impinges on the boundary layer on the opposite surface of the wind tunnel. This produces an impinging SWBLI within the test section that replicates the flow found in a mixed compression inlet. A SWBLI can cause flow separation and it is desirable to efficiently prevent this to avoid the many adverse consequences that may result otherwise. The goal of this study is to investigate the ability of localized arc-filament plasma actuators (LAFPAs) to effectively control the interaction. The LAFPAs show significant ability to beneficially affect the SWBLI depending on various operating parameters such as geometry and forcing Strouhal number. This ability apparently stems from a manipulation of instabilities naturally present in the flow. For the compression ramp facility the LAFPAs were most effective when located upstream of the shock foot, forcing with a Strouhal number of 0.03, and operated in-phase. The VAW facility is currently being debugged and will be used for future detailed experiments investigating the control authority of the LAFPAs.
Mohammad Samimy, PhD (Advisor)
Michael Dunn, PhD (Committee Member)
Jeffrey Bons, PhD (Committee Member)
90 p.
Engineering; Mechanical Engineering
flow control; LAFPA; plasma actuator; SWBLI; supersonic inlet

Recommended Citations

Citations

  • Webb, N. J. (2010). Control of Supersonic Mixed-Compression Inlets Using Localized Arc Filament Plasma Actuators [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274714729

    APA Style (7th edition)

  • Webb, Nathan. Control of Supersonic Mixed-Compression Inlets Using Localized Arc Filament Plasma Actuators. 2010. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1274714729.

    MLA Style (8th edition)

  • Webb, Nathan. "Control of Supersonic Mixed-Compression Inlets Using Localized Arc Filament Plasma Actuators." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274714729

    Chicago Manual of Style (17th edition)

osu1274714729
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© 2010, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.