Results 21 to 30 of about 245,160 (297)
Secondary sonic boom predictions for U.S. coastlines.
Journal of the Acoustical Society of America, 2022 This study examines the behavior of secondary sonic booms on United States (U.S.) coastlines to have a more complete understanding of the impact of supersonic travel on communities.
Kimberly A Riegel, V. Sparrow
semanticscholar +1 more source
Journal of the Acoustical Society of America, 2021 The influence of topography on sonic boom propagation is investigated. The full two-dimensional Euler equations in curvilinear coordinates are solved using high-order finite-difference time-domain techniques.
A. Emmanuelli +3 more
semanticscholar +1 more source
A low-boom and low-drag design method for supersonic aircraft and its applications on airfoils
Advances in Aerodynamics, 2021 Sonic boom reduction has been an urgent need for the development of future supersonic transport, because of the heavy damage of noise pollution. This paper provides a novel concept for supersonic aircraft to reduce the sonic boom and drag coefficient ...
Liu-qing Ye +4 more
doaj +1 more source
Loudness and short-term annoyance of sonic boom signatures at low levels.
Journal of the Acoustical Society of America, 2021 Supersonic aircraft produce a sonic boom when flying faster than the speed of sound. To rule out detrimental effects for inhabitants of overflown areas, civil supersonic flights (like the Concorde) were only allowed to fly at supersonic speed when over ...
Stephan Töpken, S. van de Par
semanticscholar +1 more source
Passenger Spaceplanes and Airplanes that Have Variable Configuration for Sonic Boom Reduction [PDF]
INCAS Bulletin, 2018 In the last time, the interest for passenger space plane, supersonic passenger aircraft and supersonic business jets is increasing. For reducing sonic boom effects at ground level, some companies proposed airplanes having fuselage with small traversal ...
Constantin SANDU +4 more
doaj +1 more source
Controls on Seasonal Atmosphere-Ecosystem Carbon Dioxide Exchanges in a Temperate Salt Marsh. [PDF]
Glob Chang BiolWe quantified net ecosystem exchange of carbon dioxide in a Spartina alterniflora salt marsh on the eastern shore of Virginia using eddy‐covariance measurements from March 2016 to February 2017. Peak carbon dioxide uptake occurred during summer, with tidal inundation reducing both daytime assimilation and nighttime respiration, while diffuse light ...
Ruiz-Plancarte J +2 more
europepmc +2 more sources
Numerical Investigation of Influence of Mesh Property in Nearfield Sonic Boom Prediction [PDF]
Xibei Gongye Daxue Xuebao, 2018 To investigate the influence of mesh property in nearfield sonic boom prediction, the over-pressures of several typical configurations are commutated and analyzed with an in-house Reynolds Average Navier-Stokes solver.
doaj +1 more source
Aerospace, 2023 Forward-swept wings can be expected to be lower-boom planforms with similar amount of drag as backward-swept wings because of their good lift distributions.
Yuki Kishi +2 more
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The Origin and Physico-Chemical Properties of Some Unusual Earth Rock Fragments
Applied Sciences, 2022 In this paper, several researches were undertaken related to a violent phenomenon, characterized by a sonic boom, felt on an area of at least 500 km2, shortly followed by the fall of rock fragments that were then recovered from the ground.
Alexandru Cocean +7 more
doaj +1 more source
Aerospace, 2023 The request for faster and greener civil aviation is urging the worldwide scientific community and aerospace industry to develop a new generation of supersonic aircraft, which are expected to be environmentally sustainable, and to guarantee a high level ...
Thomas Rötger +2 more
doaj +1 more source