A physics-based shock capturing method for unsteady laminar and turbulent flows
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AIAA_SciTech2018_shockCapturing.pdf
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9.29 MB
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Author(s)
Fernandez del Campo, Pablo
Nguyen, Ngoc Cuong
Peraire, Jaime
Date Issued
January 2018
Journal
2018 AIAA Aerospace Sciences Meeting
Publisher
American Institute of Aeronautics and Astronautics (AIAA)
Citation
Fernandez, Pablo, Cuong Nguyen, and Jaime Peraire. “A Physics-Based Shock Capturing Method for Unsteady Laminar and Turbulent Flows.” 2018 AIAA Aerospace Sciences Meeting (January 7, 2018), Kissimmee, Florida, 2018.
Version
Author's final manuscript
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.2514/6.2018-0062
