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020 ▼a 9780438098190
035 ▼a (MiAaPQ)AAI10901878
035 ▼a (MiAaPQ)OhioLINK:osu1511734224701396
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 248032
0820 ▼a 530
1001 ▼a Waindim, Mbu.
24510 ▼a On Unsteadiness in 2-D and 3-D Shock Wave Turbulent Boundary Layer Interactions.
260 ▼a [S.l.] : ▼b The Ohio State University., ▼c 2017
260 1 ▼a Ann Arbor : ▼b ProQuest Dissertations & Theses, ▼c 2017
300 ▼a 200 p.
500 ▼a Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
500 ▼a Adviser: Datta Gaitonde.
5021 ▼a Thesis (Ph.D.)--The Ohio State University, 2017.
520 ▼a Shock-boundary layer interactions (SBLIs) are ubiquitous occurrences in supersonic and hypersonic vehicles and have the tendency to inhibit their structural and aerodynamic performance. For example, in the inlets and isolators of such vehicles,
520 ▼a Nominally 2-D interactions have been studied extensively and have identified low-frequency shock motions which lead to undesirable pressure loads. The particular frequencies associated with the motions have been characterized using time resolved
520 ▼a For flow fields where the shock is swept, a complex 3-D interaction is encountered whose unsteady features are even less well understood. The mean structure of these 3-D interactions has been obtained experimentally and using RANS simulations, a
520 ▼a Although Large Eddy Simulations (LES) are invaluable for characterizing time evolving features, they are prohibitively expensive for swept interactions. A stability analysis based method, the Mean Flow Perturbation (MFP) technique appears as a b
520 ▼a A systematic verification and validation of the technique is presented to provide a solid basis for its employment. By implementing the technique on canonical problems with similar properties as the swept interaction, its applicability for flows
520 ▼a By definition, the implementation of MFP requires the knowledge of a mean base state. For the nominally 2-D interactions, the mean of a previously obtained LES is used as the basis. In addition to providing the input to the MFP technique, the LE
520 ▼a Besides the LES supplied mean base state, the MFP technique is also implemented with a RANS supplied base flow. No significant differences in the results are observed indicating a relative independence of the MFP technique to the base flow gener
590 ▼a School code: 0168.
650 4 ▼a Physics.
650 4 ▼a Aerospace engineering.
690 ▼a 0605
690 ▼a 0538
71020 ▼a The Ohio State University. ▼b Aero/Astro Engineering.
7730 ▼t Dissertation Abstracts International ▼g 79-12B(E).
773 ▼t Dissertation Abstract International
790 ▼a 0168
791 ▼a Ph.D.
792 ▼a 2017
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15000304 ▼n KERIS
980 ▼a 201812 ▼f 2019
990 ▼a 관리자