Results 1 to 10 of about 405 (198)
Review of Sonic Boom Prediction and Reduction Methods for Next Generation of Supersonic Aircraft [PDF]
Aerospace, 2023 The reduction of sonic boom levels is the main challenge but also the key factor to start a new era of supersonic commercial flights. Since 1970, a FAA regulation has banned supersonic flights overland for unacceptable sonic booms at the ground, and many
Giordana Bonavolonta +2 more
exaly +4 more sources
Comparison of Prediction Models for Sonic Boom Ground Signatures Under Realistic Flight Conditions [PDF]
AerospaceThis paper presents a comparative analysis of simplified and high-fidelity sonic boom prediction methods to assess their applicability in the conceptual design of supersonic aircraft. The high-fidelity approach combines Computational Fluid Dynamics (CFD)
Jacob Jaschke +2 more
exaly +5 more sources
Procedia Engineering, 2015 AbstractBased on bodies of revolution, several flight and shape parameters are considered for investigating their effects on the sonic boom signature including overpressure and impulse. Here, the parameters include flight altitude, Mach number, cone half-angle, bluntness and fineness ratio.
Lengyan, , Zhansen, Qian
exaly +3 more sources
Aerodynamic Optimization Design on Supersonic Transports Considering Sonic Boom Intensity
Xibei Gongye Daxue Xuebao, 2020 It is key points to improve the aerodynamic efficiency and decrease the sonic-boom intensity for the supersonic aircraft design. Sonic-boom prediction method with high precision combining the near-field sonic-boom prediction based on Reynolds-Averaged ...
doaj +3 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 +2 more sources
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 +1 more source
Evaluation of Sonic Boom Shock Wave Generation with CFD Methods
AerospaceOver the past two decades, there has been a renewed interest in the development of a new generation of supersonic aircraft for civil purposes that could potentially succeed Concorde.
Samuele Graziani +2 more
exaly +3 more sources
A methodology for the prediction of the sonic boom in tunnels of high-speed trains
Journal of Sound and Vibration, 2019 The present study focuses in the propagation and deformation of the first compression wave generated when a high speed train enters a tunnel. This first wave is a determining factor in shock wave formation inside the tunnel, and therefore in sonic boom phenomena. This is modelled with the one-dimensional equations for the flow in a tube, and an analogy
Ezequiel González-Martínez
exaly +3 more sources
Hangkong gongcheng jinzhan, 2021 The sonic boom problem is a great barrier to the application of supersonic aircraft, and the accurate sonic boom prediction method is the key of the sonic boom problem.Waveform parameter method and augmented Burgers equation method are frequently used ...
CUI Qing +3 more
doaj +1 more source
Secondary sonic boom predictions for U.S. coastlines
The 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. Secondary sonic booms occur when the atmospheric conditions are such that the atmospheric refraction causes the sound that would ordinarily not reach the ground to bend ...
Kimberly A. Riegel, Victor W. Sparrow
openaire +3 more sources