Results 171 to 180 of about 1,929,704 (249)
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Aerodynamic noise characteristics of high-speed train foremost bogie section
Journal of Central South University, 2020Zhi-Gang Yang, Xiao-Ming Tan
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Aerodynamic noise reduction of a blunt flat plate by trailing-edge blowing
The Physics of Fluids, 2023This study investigates the influence of air blowing on the aerodynamic noise generated by a flat plate with a blunt trailing edge. The uniform blowing was applied through evenly spaced holes along the span at the base of the flat plate.
R. Maryami
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The Physics of Fluids, 2023
Through comparing with the tandem circular and elliptic cylinders with the same characteristic dimensions, the behavior of flow and flow-induced noise generated around the tandem seal-vibrissa-shaped cylinder is studied based on delayed detached-eddy ...
Jianyue Zhu +4 more
semanticscholar +1 more source
Through comparing with the tandem circular and elliptic cylinders with the same characteristic dimensions, the behavior of flow and flow-induced noise generated around the tandem seal-vibrissa-shaped cylinder is studied based on delayed detached-eddy ...
Jianyue Zhu +4 more
semanticscholar +1 more source
The International Journal of Electrical Engineering & Education, 2021
Prediction of aerodynamic noise is the key technology for the internal weapon bay of supersonic aircraft. Nonlinear numerical simulation is proposed as a new method to analyze noise recently. The Non-Linear Acoustic Solver (NLAS) is employed to study the
Binqi Chen, Yiding Wang
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Prediction of aerodynamic noise is the key technology for the internal weapon bay of supersonic aircraft. Nonlinear numerical simulation is proposed as a new method to analyze noise recently. The Non-Linear Acoustic Solver (NLAS) is employed to study the
Binqi Chen, Yiding Wang
semanticscholar +1 more source
Numerical simulation of aerodynamic noise and noise reduction of range hood
Applied Acoustics, 2021The hybrid CAA (Computational Aeroacoustics) method is used to numerical study on the aerodynamic noise of a certain range hood. The CFD numerical calculation method was used to calculate the unsteady flow field, and the velocity and pressure ...
Huang Jiayu +4 more
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Aerodynamic Noise and the Estimation of Noise in Aircraft
The Journal of the Acoustical Society of America, 1952Noise resulting from the flow of air over the fuselage of an airplane has been investigated and found to depend principally on approximately the fifth power of the indicated air speed. The resulting emperical relation of noise level to airspeed is found to be quite useful in estimating the noise in the frequency range above 600 cps, for airplanes ...
ROBERT F. COOK, ORVILLE R. ROGERS
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Journal of Fluid Mechanics, 1971
A symposium on aerodynamic noise was held at Loughborough University from 14 to 17 September 1970 under the sponsorship of the Royal Aeronautical Society and the British Acoustical Society. The objective of the meeting was to focus attention on unsolved theoretical and experimental problems which will require attention over the next few years.
M. J. Fisher, M. V. Lowson
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A symposium on aerodynamic noise was held at Loughborough University from 14 to 17 September 1970 under the sponsorship of the Royal Aeronautical Society and the British Acoustical Society. The objective of the meeting was to focus attention on unsolved theoretical and experimental problems which will require attention over the next few years.
M. J. Fisher, M. V. Lowson
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Aerodynamics and Noise of Coaxial Jets
AIAA Journal, 1977The objective of this investigation was to develop a unified prediction method for estimating the aerodynamic and noise characteristics of jets issuing from nozzles of arbitrary geometric shapes. The method has been developed and demonstrated for dual-flow coaxial jets.
Balsa, Thomas F., Gliebe, Philip R.
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, 2021
Although the characteristic Reynolds number of small horizontal axis wind turbines is only in the order of 100,000, their noise emissions can be annoying.
K. Volkmer, N. Kaufmann, T. Carolus
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Although the characteristic Reynolds number of small horizontal axis wind turbines is only in the order of 100,000, their noise emissions can be annoying.
K. Volkmer, N. Kaufmann, T. Carolus
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On the scattering of aerodynamic noise
Journal of Fluid Mechanics, 1971According to the Lighthill acoustic analogy, the sound induced by a region of turbulence is the same as that due to an equivalent distribution of quadrupole sources within the fluid. It is known that the presence of scattering bodies situated near such multipoles can convert some of their intense near field energy into the form of sound waves whose ...
Crighton, D. G., Leppington, F. G.
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