A physics-based shock capturing method for unsteady laminar and turbulent flows
We present a shock capturing method for unsteady laminar and turbulent flows. The proposed approach relies on physical principles to increase selected transport coefficients and resolve unstable sharp features, such as shock waves and strong thermal and shear gradients, over the smallest distance al...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Published: |
American Institute of Aeronautics and Astronautics (AIAA)
2018
|
| Online Access: | http://hdl.handle.net/1721.1/114629 https://orcid.org/0000-0002-6291-4946 https://orcid.org/0000-0002-8556-685X |
| _version_ | 1826194149394612224 |
|---|---|
| author | Fernandez del Campo, Pablo Nguyen, Cuong Peraire, Jaime |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Fernandez del Campo, Pablo Nguyen, Cuong Peraire, Jaime |
| author_sort | Fernandez del Campo, Pablo |
| collection | MIT |
| description | We present a shock capturing method for unsteady laminar and turbulent flows. The proposed approach relies on physical principles to increase selected transport coefficients and resolve unstable sharp features, such as shock waves and strong thermal and shear gradients, over the smallest distance allowed by the discretization. In particular, we devise various sensors to detect when the shear viscosity, bulk viscosity and thermal conductivity of the fluid do not suffice to stabilize the numerical solution. In such cases, the transport coefficients are increased as necessary to optimally resolve these features with the available resolution. The performance of the method is illustrated through numerical simulation of external and internal flows in transonic, supersonic, and hypersonic regimes. |
| first_indexed | 2024-09-23T09:51:41Z |
| format | Article |
| id | mit-1721.1/114629 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:51:41Z |
| publishDate | 2018 |
| publisher | American Institute of Aeronautics and Astronautics (AIAA) |
| record_format | dspace |
| spelling | mit-1721.1/1146292022-09-30T17:18:47Z A physics-based shock capturing method for unsteady laminar and turbulent flows Fernandez del Campo, Pablo Nguyen, Cuong Peraire, Jaime Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Fernandez del Campo, Pablo Nguyen, Cuong Peraire, Jaime We present a shock capturing method for unsteady laminar and turbulent flows. The proposed approach relies on physical principles to increase selected transport coefficients and resolve unstable sharp features, such as shock waves and strong thermal and shear gradients, over the smallest distance allowed by the discretization. In particular, we devise various sensors to detect when the shear viscosity, bulk viscosity and thermal conductivity of the fluid do not suffice to stabilize the numerical solution. In such cases, the transport coefficients are increased as necessary to optimally resolve these features with the available resolution. The performance of the method is illustrated through numerical simulation of external and internal flows in transonic, supersonic, and hypersonic regimes. United States. Air Force Office of Scientific Research (Grant FA9550-16-1-0214) 2018-04-09T17:18:26Z 2018-04-09T17:18:26Z 2018-01 2018-04-09T11:46:45Z Article http://purl.org/eprint/type/ConferencePaper 978-1-62410-524-1 http://hdl.handle.net/1721.1/114629 Fernandez, Pablo et al. “A Physics-Based Shock Capturing Method for Unsteady Laminar and Turbulent Flows.” 2018 AIAA Aerospace Sciences Meeting, January 2018, Kissimmee, Florida, USA, American Institute of Aeronautics and Astronautics, 2018 © 2018 American Institute of Aeronautics and Astronautics https://orcid.org/0000-0002-6291-4946 https://orcid.org/0000-0002-8556-685X http://dx.doi.org/10.2514/6.2018-0062 2018 AIAA Aerospace Sciences Meeting Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Institute of Aeronautics and Astronautics (AIAA) Other repository |
| spellingShingle | Fernandez del Campo, Pablo Nguyen, Cuong Peraire, Jaime A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title | A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title_full | A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title_fullStr | A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title_full_unstemmed | A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title_short | A physics-based shock capturing method for unsteady laminar and turbulent flows |
| title_sort | physics based shock capturing method for unsteady laminar and turbulent flows |
| url | http://hdl.handle.net/1721.1/114629 https://orcid.org/0000-0002-6291-4946 https://orcid.org/0000-0002-8556-685X |
| work_keys_str_mv | AT fernandezdelcampopablo aphysicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows AT nguyencuong aphysicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows AT perairejaime aphysicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows AT fernandezdelcampopablo physicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows AT nguyencuong physicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows AT perairejaime physicsbasedshockcapturingmethodforunsteadylaminarandturbulentflows |