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AbigailSevierThesis_R4.pdf (9.03 MB)

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Feasibility Study for Testing the Dynamic Stability of Blunt Bodies with a Magnetic Suspension System in a Supersonic Wind Tunnel

Sevier, Abigail
http://rave.ohiolink.edu/etdc/view?acc_num=case1493207020743959

Abstract Details

2017, Master of Sciences, Case Western Reserve University, EMC - Aerospace Engineering.
The feasibility of a magnetic suspension and balance system (MSBS) for testing dynamic stability of atmospheric entry capsules in the NASA GRC 225 cm2 Supersonic Wind Tunnel is investigated. The following are examined in the study: largest model size for testing in the MSBS, minimum proximity between wall and model, and analysis techniques using high-speed video images of model movement. Results indicate larger models can be tested in an axisymmetric test section and at locations closer to the nozzle exit resulting from lower boundary-layer blockage. Additionally, models contact the reflected shock from the boundary-layer at a 2.5 cm distance from centerline. Video analysis methods establish a measurement error of 0.6 degrees in pitch or yaw angle. Using these methods, a proof of concept demonstration for a one degree-of-freedom test in pitch simulating blunt body dynamic behavior is compared to ballistic range data for atmospheric entry vehicles.
Paul Barnhart, Ph.D. (Advisor)
Joseph Prahl, Ph.D. (Committee Member)
James T'ien, Ph.D. (Committee Member)
274 p.
Aerospace Engineering
Magnetic Suspension and Balance System; Blunt Body Dynamic Stability; Supersonic Wind Tunnel; Wind Tunnel Testing; Entry Descent and Landing

Recommended Citations

Citations

  • Sevier, A. (2017). Feasibility Study for Testing the Dynamic Stability of Blunt Bodies with a Magnetic Suspension System in a Supersonic Wind Tunnel [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1493207020743959

    APA Style (7th edition)

  • Sevier, Abigail. Feasibility Study for Testing the Dynamic Stability of Blunt Bodies with a Magnetic Suspension System in a Supersonic Wind Tunnel. 2017. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1493207020743959.

    MLA Style (8th edition)

  • Sevier, Abigail. "Feasibility Study for Testing the Dynamic Stability of Blunt Bodies with a Magnetic Suspension System in a Supersonic Wind Tunnel." Master's thesis, Case Western Reserve University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1493207020743959

    Chicago Manual of Style (17th edition)

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© 2017, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.