Reduced-Order Model for Supersonic Transport Takeoff Noise Scaling with Cruise Mach Number

Voet, Laurens J. A.; Prashanth, Prakash; Speth, Raymond; Sabnis, Jayant; Tan, Choon S; Barrett, Steven R.H.; United States. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment; Massachusetts Institute of Technology

doi:10.2514/1.C037633

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Reduced-Order Model for Supersonic Transport Takeoff Noise Scaling with Cruise Mach Number

2024-04-01
By Voet, Laurens J. A. ; Prashanth, Prakash ; Speth, Raymond ; ...

[PDF-3.32 MB]

English

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Voet, Laurens J. A. ; Prashanth, Prakash ; Speth, Raymond ; Sabnis, Jayant ; Tan, Choon S ; ... More +

Voet, Laurens J. A. ; Prashanth, Prakash ; Speth, Raymond ; Sabnis, Jayant ; Tan, Choon S ; Barrett, Steven R.H. Less -
Corporate Creators:

United States. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment ; Massachusetts Institute of Technology

United States. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment ; Massachusetts Institute of Technology Less -
Corporate Contributors:

United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy
Subject/TRT Terms:

[+]

Aerodynamics Aircraft Noise Airport Noise ASCENT Civil Aircraft Environmental Impact Analysis Fluid Dynamics Noise Control Supersonic Aircraft
Publication/ Report Number:

1.C037633
DOI:

https://doi.org/10.2514/1.C037633
Resource Type:

Journal Article
Right Statement:

Open Access:https://creativecommons.org/licenses/by/2.0/deed.en
Geographical Coverage:

United States
Corporate Publisher:

American Institute of Aeronautics and Astronautics, Inc
Abstract:

The recent interest in the development of supersonic transport raises concerns about an increase in community noise around airports. As noise certification standards for supersonic transport other than Concorde have not yet been developed by the International Civil Aviation Organization, there is a need for a physics-based scaling rule for supersonic transport takeoff noise performance. Assuming supersonic transport takeoff noise levels are dominated by the engine mixed jet velocity and the aircraft-to-microphone propagation distance, this paper presents a reduced order model for supersonic transport takeoff noise levels as a function of four scaling groups: cruise Mach number, takeoff aerodynamic efficiency, takeoff speed, and number of installed engines. This paper finds that, as cruise Mach number increases, supersonic transport takeoff noise levels increase while their thrust cutback noise reduction potential decreases. Assuming constant aerodynamic efficiency, takeoff speed, and number of installed engines, the takeoff noise levels, and noise reduction potential of a Mach 2.2 aircraft are found to be∼15.3 dB higher and∼19.2 dB less compared to a Mach 1.4 aircraft, respectively. This scaling rule can potentially yield a simple guideline for estimating an approximate noise limit for supersonic transport, depending on their cruise Mach number.
Content Notes:

This is an open access article under the terms of the Creative Commons Attribution 2.0 Attribution 2.0 Generic Deed (CC BY 2.0) license https://creativecommons.org/licenses/by/2.0/deed.en. Please cite this article as: Reduced-Order Model for Supersonic Transport Takeoff Noise Scaling with Cruise Mach Number Laurens J. A. Voet, Prakash Prashanth, Raymond L. Speth, Jayant S. Sabnis, Choon S. Tan, and Steven R. H. Barrett Journal of Aircraft 2024 61:4, 1155-1168. https://doi.org/10.2514/1.C037633
Format:

PDF
Funding:

13-C-AJFE-MIT-052, 74
Collection(s):

Federal Aviation Administration
Main Document Checksum:

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urn:sha-512:ec87024862a55b382387f9356a21899ae5dcedb18630e1201e29b9313a0bd28fc7bef6140ee28f6c8dadff7d2d5d81f3c9b86ccf16639cd399f260005cede87b
Download URL:

https://rosap.ntl.bts.gov/view/dot/77359/dot_77359_DS1.pdf
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Reduced-Order Model for Supersonic Transport Takeoff Noise Scaling with Cruise Mach Number

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