Results 171 to 180 of about 29,140 (209)

Theorem of turbulent intensity and macroscopic mechanism of the turbulence development

Science in China Series D: Earth Sciences, 2007
Turbulence is one of the most common nature phenomena in everyday experience, but that is not adequately understood yet. This article reviews the history and present state of development of the turbulence theory and indicates the necessity to probe into the turbulent features and mechanism with the different methods at different levels.
YinQiao Hu, JinBei Chen, HongChao Zuo
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Effect of intense turbulence on turbulent premixed V-flame

International Journal of Engineering Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chan, C. K., Wang, H. Y., Tang, H. Y.
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Turbulence intensity in bubble columns

The Chemical Engineering Journal, 1989
Abstract A parameter for the intensity of turbulent flow in bubble columns, a characteristic turbulent kinematic viscosity, is discussed.
Y. Kawase, M. Moo-Young
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The Turbulence Intensity of the Wind Bora

2018
The Bora is a cold and gusty wind which occurs along the eastern coast of the Adriatic Sea and its hinterland. It is most commonly from the north or north-east direction and often achieves stormy strength. Due to the direct connection of the Bora and the complex terrain, the speed of the wind Bora is rapidly changing while crossing obstacles and the ...
Blago Pehar, Elvir Zlomušica, Suad Zalihić   +2 more
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Crossbeam intensity fluctuations in turbulence

Optical Engineering, 2014
Intensity fluctuations of a crossbeam are evaluated in weak atmospheric turbulence. A crossbeam is defined as two asymmetrical Gaussian beams oriented perpendicular to each other, and one of these beams is wider along the x-axis whereas the other beam is wider along the y-axis.
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Measuring intense rotation and dissipation in turbulent flows

Nature, 2003
Turbulent flows are highly intermittent--for example, they exhibit intense bursts of vorticity and strain. Kolmogorov theory describes such behaviour in the form of energy cascades from large to small spatial and temporal scales, where energy is dissipated as heat.
Benjamin W, Zeff, Daniel D, Lanterman, Ryan, McAllister, Rajarshi, Roy, Eric J, Kostelich, Daniel P, Lathrop   +5 more
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Impacts of Turbulence on Hurricane Intensity

2010
Abstract : Our recent studies have shown that hurricane boundary layer turbulence, which must be parameterized in the current-generation weather-prediction models, plays a significant role in controlling the hurricane intensity. We find that horizontal turbulence, particularly in the radial direction (i.e., towards or away from the hurricane center ...
George H. Bryan, Richard Rotunno, Youngsheng Chen   +2 more
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Intensity statistics for propagation through a turbulent layer

Applied Optics, 1982
The results of a Monte Carlo calculation of the probability distribution of the far-field irradiance produced by a thin turbulent layer placed in front of a finite-aperture transmitter are discussed. These results clearly show that Rice-Nakagami and other well-known distributions such as the lognormal distribution are inapplicable to this problem.
G C, Valley, W P, Brown
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The intensity of turbulence in convective clouds

Quarterly Journal of the Royal Meteorological Society, 1957
AbstractCalculations of collision rates between cloud droplets in turbulent air show that this would be an effective precipitation mechanism in cumulus if the r.m.s. turbulent acceleration were about 3 times that due to gravity. An estimated value, based on published records of flights through thunderstorms, is about one‐sixth of gravity.
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Turbulent Intensity Evaluation with PIV

1991
Two velocity components measurements in a turbulent boundary layer have been performed by means of Particle Image Velocimetry (PIV). Multiple images acquisition with a video-camera and successive direct elaboration allow to obtain good statistical evaluations of the quantities which characterize turbulent flows.
A. Cenedese, G. Palmieri, G. P. Romano
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