High-fidelity Aerodynamic and Aeroacoustic Simulations
High-fidelity Aerodynamic and Aeroacoustic Simulations
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For high-fidelity turbulence-resolving simulations, our team collaborate closely with the open-source CFD community SU2. In particular, we have contributed to the development and validation of both hybrid RANS/LES (HRLES) and LES capabilities of SU2. For separated flows, the SU2 HRLES solver employing enhance delayed detached eddy simulation (EDDES) with Spalart-Allmaras turbulence model. To mitigate the “grey area” problem characterized by slow transition from RANS to LES mode in the shear-layer, a shear-layer adaptive (SLA) sub-grid scale model was implemented. In addition, to limit the numerical dissipation in LES part of the EDDES model, the inviscid flux is computed using the so-called simple low dissipation advection upstream (SLAU2). For wall-resolved LES simulations, the Vreman sub-grid scale (SGS) model is used to model unresolved scales. For high Reynolds number simulations, wall-modelled LES is enabled by a logarithmic wall model coupled with the Vreman SGS.
Acoustic predictions are enabled with our in-house GPU-accelerated FWH solver in the F1A formulation, as well as the time-domain acoustic scattering solver. Leveraging the aforementioned numerical framework, have successfully demonstrated the predictive capabilities of our high-fidelity aerodynamic and aeroacoustic simulations for high-lift devices, landing gear, turbulent jet, isolated and installed rotors, delta wing and automotives.
We are also experienced with turbulent flow simulations based on the Lattice Boltzmann Method (LBM) provided by the commercial solver PowerFlow, as a result of several fruitful collaborations with Prof. Damiano Casalino’s team at Dassault Systèms.
Related Publications
L. Trascinelli, L. Bowen, B. Y. Zhou, and N. Zang, “Flow and acoustic characteristics of isotropic turbulence interacting with a symmetric airfoil”, Physics of Fluids, Vol. 37, No. 2, 2025.
L. Trascinelli, L. P. Hanson, G. Romani, D. Casalino, B. Y. Zhou, B. Zang, and M. Azarpeyvand, “Numerical Simulations of Cylinder-Induced Turbulence Ingestion in Forward Flight Propellers”, In 30th AIAA/CEAS Aeroacoustics Conference, No. 2024-3040, Rome, Italy, 2024.
L. Trascinelli, L. P. Hanson, L. F. Filho, B. Zang, B. Y. Zhou, and M. Azarpeyvand, “An Aeroacoustic Investigation of Propeller Installation Effects in the Vicinity of an Airfoil”, In 30th AIAA/CEAS Aeroacoustics Conference, No. 2024-3104, Rome, Italy, 2024.
F. T. Kunz, B. Y. Zhou, L. Galimberti, M. Morelli, and A. Guardone, “High-Fidelity Propeller Broadband Noise Prediction using SU2”, In AIAA AVIATION 2023 Forum, No. 2023-4185, San Diego, CA, 2023.
L. Trascinelli, L. Bowen, A. Piccolo, R. Zamponi, D. Ragni, F. Avallone, B. Y. Zhou, and B. Zang, “Numerical Simulation of Grid-Generated Turbulence Interaction with a NACA0012 Airfoil”, In AIAA AVIATION 2023 Forum, No. 2023-3633, San Diego, CA, 2023.
M. Morelli, A. Guardone, and B. Y. Zhou, “Computational Aeroacoustic Analysis of a Wing-Tip Mounted Propeller and High-Lift Device”, In 28th AIAA/CEAS Aeroacoustics Conference, No. 2022-2939, Southampton, United Kingdom, 2022.
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