Numerical Simulation of Grid-Generated Turbulence Interaction with a NACA0012 Airfoil

L. Trascinelli, Luke Bowen, A. Piccolo, R. Zamponi, D. Ragni, F. Avallone, Beckett Y. Zhou, Bin Zang

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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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.
Original languageEnglish
Title of host publicationAIAA AVIATION 2023 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages18
ISBN (Electronic)978-1-62410-704-7
Publication statusPublished - 2023
EventAIAA AVIATION 2023 Forum - San Diego, United States
Duration: 12 Jun 202316 Jun 2023


ConferenceAIAA AVIATION 2023 Forum
Country/TerritoryUnited States
CitySan Diego


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