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The results of sonic boom research studies are presented. The purpose of the studies was as follows: (1) to minimize the sonic boom of supersonic transport aircraft, (2) to predict the distortion of the sonic boom signature by atmospheric turbulence, and
Seebass, A. R.
core +7 more sources
Optimal design for low sonic boom based on CoKriging surrogate model
Hangkong gongcheng jinzhanAccurately predicting and effectively reducing sonic boom levels is one of the key issues in the development of the new generation of green supersonic civil aircraft.
ZHANG Hanqi, XU Yue, ZHONG Min, LI Yan
doaj +1 more source
Animal Response to Sonic Boom [PDF]
The Journal of the Acoustical Society of America, 1971 Experiments and observations have been made to test the effects of sonic booms (real or simulated) on mink, horses, dairy and beef cattle, sheep, turkeys, pheasants, and chickens. Several of these tests were carried out under field conditions. Results of some of these trials are considered similar to the sensory effects of sonic booms on humans. In one
openaire +2 more sources
AIAA AVIATION 2020 FORUM, 2020 In this work, the design methodologies and technical rationales for the design of JAXA’s low-boom S4 (System integration of Silent SuperSonic airplane technologies) airliner are detailed with a focus on aerodynamic engine-airframe integration with ...
B. Liebhardt +3 more
semanticscholar +1 more source
Why does the Falcon-9 booster make a triple sonic boom during flyback? An initial analysis [PDF]
JASA Express LettersWhen the SpaceX Falcon-9 rocket booster descends through the atmosphere after a launch, it produces a sonic boom with three shocks in the far field, rather than the usual two-shock N-wave.
Mark C. Anderson, Kent L. Gee
doaj +1 more source
AerospaceReducing the sonic boom intensity and increasing the cruise lift-to-drag ratio are pivotal technologies for the successful development of supersonic civil aircraft.
Yuyu Duan +3 more
doaj +1 more source
Sonic Boom Prediction Code Development and Sonic Boom Predictions via Open Source CFD Software
Havacılık ve Uzay Teknolojileri Dergisi, 2022 In the present work a sonic boom prediction code which numerically solves the Augmented Burgers equation using the operator-splitting approach was developed.
Emre Alpman +5 more
doaj
GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction
Advanced Functional Materials, EarlyView.Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri +12 more
wiley +1 more source
The Journal of the Acoustical Society of America, 1971 There have been many attempts to reduce or eliminate the sonic boom. For supersonic aircrafts such attempts fall into two categories: (1) aerodynamic minimums and (2) exotic configurations. In the first category, changes in entropy and the Bernoulli constant are neglected, and equivalent body shapes required to minimize the overpressure, the shock ...
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Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles
Advanced Functional Materials, EarlyView.Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati +2 more
wiley +1 more source