Results 61 to 70 of about 304 (177)
Numerical simulation on aerodynamic noise of 120 km/h metro train
机车电传动, 2022 The mechanism of noise generated by rail vehicles in the process of driving is complex. Noise problems not only cause trouble to the comfort of passengers, but also restrict the development and application of rail transit vehicle to a certain extent ...
YAN Lei, YOU Tianyv, YANG Zhigang
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FluidsEnsuring the safety of space flights and solving the problems of reducing acoustic loads during the launch of space vehicles requires not only the development of new technical systems for launch complexes, but also methods for the numerical simulation of
Konstantin Volkov
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Noise Reduction Mechanisms of an Airfoil with Trailing Edge Serrations at Low Mach Number
Applied Sciences, 2019 Trailing-edge serrations have proven to be valid applications of trailing edge noise mitigation for an airfoil, while the physical noise reduction mechanism has not been adequately studied. We performed simulations employing Large-eddy simulation and the
Hui Tang, Yulong Lei, Yao Fu
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Optimized difference schemes for multidimensional hyperbolic partial differential equations
Electronic Journal of Differential Equations, 2009 In numerical solutions to hyperbolic partial differential equations in multidimensions, in addition to dispersion and dissipation errors, there is a grid-related error (referred to as isotropy error or numerical anisotropy) that affects the ...
Adrian Sescu +2 more
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Numerical Simulation and Experiment on Impulse Noise in a Small Caliber Rifle with Muzzle Brake
Shock and Vibration, 2019 Blast waves generated from the muzzles of weapons may exert negative effects, such as shock waves and impulse noise. If the weapon is fired with a muzzle brake, these effects are recognized to be more severe.
Xin Yi Zhao +5 more
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Flexible Discretization for Computational Aeroacoustics [PDF]
14th WCCM-ECCOMAS Congress, 2021 Kaltenbacher, M. +3 more
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AerospaceLow-Reynolds-number propeller systems have been widely used in aeronautical applications, such as unmanned aerial vehicles (UAV) and electric propulsion systems. However, the aerodynamic sound of the propeller systems is often significant and can lead to
Guangyuan Huang +4 more
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Helmholtz's decomposition for compressible flows and its application to computational aeroacoustics. [PDF]
SN Partial Differ Equ Appl, 2020 Schoder S, Roppert K, Kaltenbacher M.
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Computational and asymptotic methods in aeroacoustics with applications
, 2011 In this article the computational and asymptotic methods used in aeroacoustics are reviewed. In particular, two different aeroacoustic applications are demonstrated.In the first problem we investigate the first and second order asymptotic predictions of the thickness and loading noise of a subsonic B-bladed helicopter rotor in the far field and compare
DELALE, Can F. +2 more
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Exploring the Use of Passive Compliant Coatings to Address Wind Turbine Noise
WindWind is a significant contributor to global energy requirement, with technological advancements in this industry enabling its rapid growth over the last few decades.
Rohith Giridhar +2 more
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