Large-eddy simulation of shock/turbulence interactions in hypersonic vehicle isolator systems
Abstract/Contents
- Abstract
- Despite more than fifty years of research into the advancement of supersonic combustion ramjets, or scramjets, the technical challenges associated with the development of a reliable hypersonic, air-breathing propulsion platform continue to frustrate engineers to this day. Although scramjets offer the potential of substantially increased cycle efficiency over other types of chemical-propulsion systems, extreme failure modes such as engine unstart, in which the isolator shock system is ejected through the inlet, may lead to in-flight loss of thrust. Since it is well understood that shock-induced separation may affect the onset of unstart, it follows that improved understanding of the physics of shock / turbulence interaction may lead to more accurate prediction of design margins in physical scramjet engines. It is therefore the aim of the present research to explore with high-fidelity large-eddy simulation (LES) two unit problems of shock / turbulence interaction often found in scramjet isolator systems: (1) that of an oblique shock impinging on a turbulent boundary layer and (2) that of a normal shock train in a constant-area duct.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2012 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Morgan, Brandon Evan |
|---|---|
| Associated with | Stanford University, Department of Aeronautics and Astronautics |
| Primary advisor | Lele, Sanjiva K. (Sanjiva Keshava), 1958- |
| Thesis advisor | Lele, Sanjiva K. (Sanjiva Keshava), 1958- |
| Thesis advisor | Duraisamy, Karthikeyan |
| Thesis advisor | Moin, Parviz |
| Advisor | Duraisamy, Karthikeyan |
| Advisor | Moin, Parviz |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Brandon Evan Morgan. |
|---|---|
| Note | Submitted to the Department of Aeronautics and Astronautics. |
| Thesis | Ph.D. Stanford University 2012 |
| Location | electronic resource |
Access conditions
- Copyright
- © 2012 by Brandon Evan Morgan
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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