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Direct numerical simulations of hypersonic shock-turbulence interactions

ORAL

Abstract

We present the results of shock-turbulence interactions in hypersonic flows using direct numerical simulation (DNS) and linear interaction analysis (LIA). The DNS calculations are conducted with the HTR solver at various turbulent Mach numbers. These results are compared with linear theory by solving the unperturbed problem using the in-house chemical equilibrium code Combustion Toolbox. Subsequently, the perturbed problem comprising weakly isotropic vortical disturbances is solved using LIA. The study focuses on how dilatational energy ahead of the shock influences the Reynolds stress components. Additionally, we examine the effect of vibrational excitation on turbulence amplification by using two thermodynamic models: calorically perfect gas and calorically imperfect gas with frozen chemistry.

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Publication: Di Renzo, M., Fu, L., & Urzay, J. (2020). HTR solver: An open-source exascale-oriented task-based multi-GPU high-order code for hypersonic aerothermodynamics. Computer Physics Communications, 255, 107262.<br><br>Di Renzo, M., & Pirozzoli, S. (2021). HTR-1.2 solver: Hypersonic Task-based Research solver version 1.2. Computer Physics Communications, 261, 107733.<br><br>Di Renzo, M. (2022). HTR-1.3 solver: Predicting electrified combustion using the hypersonic task-based research solver. Computer Physics Communications, 272, 108247.<br><br>Huete, C., Cuadra, A., Vera, M., & Urzay, J. (2021). Thermochemical effects on hypersonic shock waves interacting with weak turbulence. Physics of Fluids, 33(8).<br><br>Cuadra, A., Vera, M., Di Renzo, M., & Huete , C. (2023). Linear theory of hypersonic shocks interacting with turbulence in air. In AIAA SCITECH 2023 Forum (p. 0075).<br><br>Cuadra, A., Huete, C., & Vera, M. Combustion Toolbox: An open-source thermochemical code for gas-and condensed-phase problems involving chemical equilibrium. Available at SSRN 4471684.

Presenters

  • Alberto Cuadra Lara

    Universidad Carlos III de Madrid

Authors

  • Alberto Cuadra Lara

    Universidad Carlos III de Madrid

  • Christopher T Williams

    Stanford University

  • Mario Di Renzo

    Stanford University, University of Salento, University of Salento

  • Marcos Vera

    Universidad Carlos III de Madrid

  • Cesar Huete

    Universidad Carlos III de Madrid, Universidad Carlos III De Madrid