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Towards large-eddy simulations of supersonic jets from twin rectangular nozzle with plasma actuation

Brès, Guillaume A. and Yeung, Brandon and Schmidt, Oliver T. and Ghassemi Isfahani, Ata and Webb, Nathan J. and Samimy, Mo and Colonius, Tim (2021) Towards large-eddy simulations of supersonic jets from twin rectangular nozzle with plasma actuation. In: AIAA Aviation 2021 Forum, 2-6 August 2021, [Online Only].

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Large-eddy simulation of a jet issuing from rectangular nozzles of aspect ratio 2 is performed. The nozzles are operating at their nominal design Mach number of 1.5. This operating condition and the geometry match those of the companion experiment conducted at Ohio State University. The preliminary results show good agreement with near-field and far-field noise measurements in terms of broadband levels and predictions of screech tone frequencies and amplitudes. In particular, the main noise radiation towards the aft angles and the overall sound pressure level directivity are within 1dB for most relevant frequencies and angles. For future simulations of active control, a numerical model of a localized arc filament plasma actuator is implemented and tested in a small test domain inside one of the nozzles. A grid resolution study is conducted to investigate the minimum grid resolution required for correct energy transport within the boundary layer.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Video Presentation
Brès, Guillaume A.0000-0003-2507-8659
Schmidt, Oliver T.0000-0002-7097-0235
Webb, Nathan J.0000-0003-3900-1134
Samimy, Mo0000-0003-0234-9655
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2021 by the Authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Published Online: 28 Jul 2021.
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Other Numbering System NameOther Numbering System ID
AIAA Paper2021-2154
Record Number:CaltechAUTHORS:20210811-192602670
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Official Citation:Guillaume A. Brès, Brandon Yeung, Oliver T. Schmidt, Ata Ghassemi Isfahani, Nathan J. Webb, Mo Samimy and Tim Colonius. "Towards large-eddy simulations of supersonic jets from twin rectangular nozzle with plasma actuation," AIAA 2021-2154. AIAA AVIATION 2021 FORUM. August 2021; DOI: 10.2514/6.2021-2154
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:110202
Deposited By: Tony Diaz
Deposited On:11 Aug 2021 21:32
Last Modified:11 Aug 2021 21:32

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