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Title: Aeroacoustic Analysis of NASA’s Space Launch System Artemis-I Mission
As the frequency of rocket launches increases, accurately predicting their noise is necessary to assess structural, environmental, and societal impacts. NASA’s Space Launch System (SLS) is a challenging vehicle to model because it has both solid-fuel rocket boosters and liquid-fueled engines that contribute to its thrust at launch. This paper discusses measured aeroacoustic properties of this super heavy-lift rocket in the context of supersonic jet theory and measurements of other rockets. Using four measured aeroacoustic properties: directivity, spectral peak frequency, maximum overall sound pressure level, and overall sound power level, an equivalent rocket based on merged plumes is created for SLS. With the constraint that the effective thrust and mass flow rates should match those of the actual vehicle, a method using weighted averages of the disparate plume parameters successfully reproduces SLS’s desired aeroacoustic properties, yielding a relatively simple model for the complex vehicle.  more » « less
Award ID(s):
2109932
PAR ID:
10585019
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
American Institute of Aeronautics and Astronautics
Date Published:
ISSN:
1533-385X
ISBN:
978-1-62410-720-7
Format(s):
Medium: X
Location:
Rome, Italy
Sponsoring Org:
National Science Foundation
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