High-order strand grid methods for shock turbulence interaction |
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Authors: | Oisin Tong Yushi Yanagita Shaun Harris Aaron Katz Doug Hunsaker |
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Institution: | 1. Department of Mechanical and Aerospace Engineering, Utah State University, Logan, UT, USAoisin.tong@gmail.com;3. Department of Mechanical and Aerospace Engineering, Utah State University, Logan, UT, USA;4. Department of Mechanical Engineering, Stanford University, Stanford, CA, USA |
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Abstract: | ABSTRACTIn this work, we examine the flux correction method for three-dimensional transonic turbulent flows on strand grids. Building upon previous work, we treat flux derivatives along strands with high-order summation-by-parts operators and penalty-based boundary conditions. A finite-volume like limiting strategy is implemented in the flux correction algorithm in order to sharply capture shocks. To achieve turbulence closure in the Reynolds-Averaged Navier–Stokes equations, a robust version of the Spalart–Allmaras turbulence model is employed that accommodates negative values of the turbulence working variable. Validation studies are considered which demonstrate the flux correction method achieves a high degree of accuracy for turbulent shock interaction flows. |
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Keywords: | High-order methods turbulence transonic flow flux correction limiter |
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