Print Email Facebook Twitter Numerical Simulation of Grid-Generated Turbulence Interaction with a NACA0012 Airfoil Title Numerical Simulation of Grid-Generated Turbulence Interaction with a NACA0012 Airfoil Author Trascinelli, L. (University of Bristol) Bowen, Luke (University of Bristol) Piccolo, A. (TU Delft Wind Energy) Zamponi, R. (TU Delft Wind Energy) Ragni, D. (TU Delft Wind Energy) Avallone, F. (Politecnico di Torino) Zhou, Beckett Y. (University of Bristol) Zang, Bin (University of Bristol) Date 2023 Abstract The present study assesses the ability to numerically predict turbulence-interaction noise of a NACA0012 airfoil with grid-generated turbulence by utilizing the Lattice Boltzmann solver PowerFLOW. Both the near-field flow characteristics and far field noise are bench-marked against an existing experimental study. The grid was chosen to match that from the experiment to provide evidence that the present numerical approach in physically placing a grid upstream of the airfoil can reproduce the turbulence characteristics observed from the benchmark experiment and thus accurately capture the turbulence-interaction noise generated. The comparison of the results show that the turbulence statistics, including turbulence intensity, integral length scales and anisotropy are highly consistent with the experiment. Moreover, far field acoustics of the turbulence interaction as well as the near-field flow properties near the leading-edge and the unsteady wall pressure fluctuations of the airfoil are also analyzed and the results agreed well with the experimental measurements. The present study confirms that the grid-generated approach is suitable for numerical investigation of turbulence-interaction noise and its potential mitigation strategies. To reference this document use: http://resolver.tudelft.nl/uuid:2c412848-cbd8-4a05-bbf2-186bff72df76 DOI https://doi.org/10.2514/6.2023-3633 Publisher American Institute of Aeronautics and Astronautics Inc. (AIAA) ISBN 978-1-62410-704-7 Source AIAA AVIATION 2023 Forum Event AIAA AVIATION 2023 Forum, 2023-06-12 → 2023-06-16, San Diego, United States Part of collection Institutional Repository Document type conference paper Rights © 2023 L. Trascinelli, Luke Bowen, A. Piccolo, R. Zamponi, D. Ragni, F. Avallone, Beckett Y. Zhou, Bin Zang Files PDF 6.2023_3633.pdf 3.39 MB Close viewer /islandora/object/uuid:2c412848-cbd8-4a05-bbf2-186bff72df76/datastream/OBJ/view