A discrete adjoint framework for turbulent hypersonic flows in thermochemical nonequilibrium
Abstract/Contents
- Abstract
- Hypersonic vehicle design and analysis continues to challenge the aerospace community. These systems operate in a unique flow environment characterized by thermochemical nonequilibrium effects, adding constraints and complexity not observed in other flow regimes. Numerical simulations must resolve these high-temperature, atomic-scale physical phenomena to accurately predict vehicle performance parameters such as lift, drag, control authority, and surface heat transfer. As a result, expensive CFD simulation models are substituted with low-fidelity correlation-based models in the design process. This yields, at best conservative vehicle configurations and, at worst, failed designs. Consequently, despite the rapid growth of computational power, hypersonic vehicle design has stagnated without the proper methods to efficiently incorporate CFD into the design process. This dissertation presents, to the author's knowledge, the first discrete adjoint framework for the efficient computation of aerothermodynamic sensitivities of turbulent hypersonic flows in thermochemical nonequilibrium to reintegrate high-fidelity simulations into the preliminary design phases for hypersonic vehicle systems.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2023; ©2023 |
| Publication date | 2023; 2023 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Maier, Walter Thomas |
|---|---|
| Degree supervisor | Alonso, Juan José, 1968- |
| Thesis advisor | Alonso, Juan José, 1968- |
| Thesis advisor | Hara, Ken |
| Thesis advisor | Lele, Sanjiva K. (Sanjiva Keshava), 1958- |
| Degree committee member | Hara, Ken |
| Degree committee member | Lele, Sanjiva K. (Sanjiva Keshava), 1958- |
| Associated with | Stanford University, School of Engineering |
| Associated with | Stanford University, Department of Aeronautics and Astronautics |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Walter T. Maier. |
|---|---|
| Note | Submitted to the Department of Aeronautics and Astronautics. |
| Thesis | Thesis Ph.D. Stanford University 2023. |
| Location | https://purl.stanford.edu/pj691zd1560 |
Access conditions
- Copyright
- © 2023 by Walter Thomas Maier
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