Results 171 to 180 of about 405 (198)

Sonic Boom Prediction: A New Empirical Formulation and Animated Graphical Model

12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference), 2006
Sonic booms are a barrier to wider application of supersonic flight due to their harmful effect on humans, animals, and structures. This research presents an empirical formulation for rapid prediction of the magnitude of a sonic boom overpressure using linear regression of independent parameter groups operating on the Lee and Downing 1991 database of ...
Andrew Clare, Richard Oman
openaire   +1 more source

Sonic-Boom Prediction of a Scaled Low-Boom Demonstration Aircraft Considering Viscosity Effects

29th AIAA Applied Aerodynamics Conference, 2011
Viscosity effects in sonic-boom prediction are investigated using inviscid and viscous CFD analysis for estimating near-field pressure signatures of a scaled low-boom demonstration aircraft. A structured/unstructured overset grids method used with Euler CFD analysis is extended to Navier-Stokes analysis for this study.
Hiroaki Ishikawa, Y. Makino, K. Ohira
openaire   +1 more source

Comparison of measured and predicted lateral distribution of sonic boom overpressures from the United States Air Force sonic boom database

The Journal of the Acoustical Society of America, 1996
In 1987 the United States Air Force (USAF) collected the lateral distribution of sonic booms produced by 43 supersonic flights of military aircraft near Edwards Air Force Base (EAFB). These flights were accomplished using eight different aircraft at several Mach number and altitude combinations.
Robert A. Lee, J. Micah Downing
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Experimental Aids for Predicting Structural Response to Sonic Booms

The Journal of the Acoustical Society of America, 1966
The response of a given structure to sonic-boom excitation depends upon the natural frequencies of the roof, walls, windows, and other elements. The presence of acoustical networks within the building will also affect the response markedly. This paper presents experimental methods of determining the necessary natural frequencies and damping factors of ...
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The influence of atmospheric variability on predicted sonic boom metrics

The Journal of the Acoustical Society of America
As part of the Quesst mission, NASA will fly the X-59 aircraft over selected communities to survey community responses to low sonic booms. Previously, we developed a Kalman filter method to estimate the loudness metrics experienced by each survey participant during each flight. The Kalman filter fuses acoustic measurements with predictions from PCBoom,
Shane V. Lympany, Juliet A. Page
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A Hybrid Computational Fluid Dynamics Procedure for Sonic Boom Prediction

24th AIAA Applied Aerodynamics Conference, 2006
A hybrid computational fluid dynamics procedure for sonic boom predi ction is presented. The method begins with either Euler or Navier -Stokes unstructured mesh computations with mesh refinement adaptation performed to efficiently resolve the solution to a high degree of resolution in the extreme -near -field of the aircraft.
Kelly Laflin, Steven Klausmeyer, Mark Chaffin   +2 more
openaire   +1 more source

Fully-Parabolized Prediction of Hypersonic Sonic Boom

AIAA AVIATION 2023 Forum, 2023
Christian B. King, Sean Skowron, Steven A. Miller   +2 more
openaire   +1 more source

Full Configuration Low Boom Model and Grids for 2014 Sonic Boom Prediction Workshop

51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013
A conceptual supersonic transport design, identified as 1021-01, was developed for the NASA N+2 Supersonic Validations program. It was designed to produce very low sonic boom. A wind tunnel model was fabricated and tested to validate the predicted low sonic boom.
openaire   +1 more source

Fast Sonic Boom Prediction with Atmospheric Stratification.

AIAA AVIATION 2020 FORUM, 2020
Philip L. Roe, Rei Yamashita, Nikolaos Nikiforakis   +2 more
openaire   +1 more source

Far-field sonic boom prediction considering atmospheric turbulence effects: An improved approach

Chinese Journal of Aeronautics, 2022
Jianling Qiao, Zhong-Hua Han, Wenping Song   +2 more
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