Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Christopher L. Morfey"'
Publikováno v:
Journal of Sound and Vibration. 498:116005
Publikováno v:
2018 AIAA/CEAS Aeroacoustics Conference.
Publikováno v:
Journal of Sound and Vibration. 330:5225-5229
Publikováno v:
Journal of Fluid Mechanics. 658:509-538
Linear and nonlinear mechanisms of sound generation in subsonic jets are investigated by numerical simulations of the compressible Navier–Stokes equations. The main goal is to demonstrate that low-frequency waves resulting from nonlinear interactio
Autor:
Brian J. Tester, Christopher L. Morfey
Publikováno v:
International Journal of Aeroacoustics. 9:419-460
The literature contains various methods for solving the Lilley equation with different types of quadrupole and dipole sources to represent the mixing noise radiated into the far-field by isothermal and heated jets. These include two basic numerical s
Publikováno v:
AIAA Journal. 44:1541-1549
Wall pressure and shear stress spectra from direct numerical simulations of turbulent plane channel flow are presented in this paper. Simulations have been carried out at a series of Reynolds numbers up to Re? = 1440, which corresponds to Re = 6:92 x
Autor:
Christopher L. Morfey, Ian Mills
Publikováno v:
Metrologia. 42:246-252
The use of special units for logarithmic ratio quantities is reviewed. The neper is used with a natural logarithm (logarithm to the base e) to express the logarithm of the amplitude ratio of two pure sinusoidal signals, particularly in the context of
Autor:
Christopher L. Morfey
Publikováno v:
Journal of Sound and Vibration. 332:3906-3908
Publikováno v:
Journal of Fluid Mechanics. 475:269-302
Lighthill’s acoustic analogy is formulated for turbulent channel flow with pressure as the acoustic variable, and integrated over the channel width to produce a two-dimensional inhomogeneous wave equation. The equivalent sources consist of a dipole
Autor:
Mingyi Tan, Christopher L. Morfey
Publikováno v:
Journal of Sound and Vibration. 246:705-721
Transverse oscillations of a cylinder in a viscous fluid generate a force on the fluid that becomes non-linear at large oscillation amplitudes. When the cylinder motion is sinusoidal, non-linearity produces odd order harmonic distortion in the force.