Mixed layer depths via Doppler lidar during low-level jet events
EPJ Web of Conferences, 2018 A low-level jet (LLJ) is a prominent wind speed peak in the lower troposphere. Nocturnal LLJs have been shown to transport and mix atmospheric constituents from the residual layer down to the surface, breaching quiescent nocturnal conditions due to high ...
Carroll Brian +3 more
doaj +1 more source
Lidar Studies of Wind Turbulence in the Stable Atmospheric Boundary Layer
Remote Sensing, 2018 The kinetic energy of turbulence, the dissipation rate of turbulent energy, and the integral scale of turbulence in the stable atmospheric boundary layer at the location heights of low-level jets (LLJs) have been measured with a coherent Doppler light ...
Viktor A. Banakh, Igor N. Smalikho
doaj +1 more source
An overview of barrier winds off southeastern Greenland during the Greenland Flow Distortion experiment [PDF]
, 2009 During the Greenland Flow Distortion experiment, barrier flow was observed by an instrumented aircraft on 1, 2, 5 and 6 March 2007 off southeastern Greenland.
Moore, GWK, Petersen, GN, Renfrew, IA
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Noise-silencing technology for upright venting pipe jet noise
Advances in Mechanical Engineering, 2018 When a natural gas transmission and distribution station performs a planned or emergency venting operation, the jet noise produced by the natural gas venting pipe can have an intensity as high as 110 dB, thereby severely affecting the production and ...
Enbin Liu, Shanbi Peng, Tiaowei Yang
doaj +1 more source
Jet vortex generators for turbulent flow separation control [PDF]
A parametric study was performed with jet vortex generators to determine their effectiveness in controlling flow separation associated with low speed turbulent flow over a two dimensional rearward-facing ramp.
Howard, F., Lin, J., Selby, Gregory
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Sensitivity of Low-Level Jets to Land-Use and Land-Cover Change over the Continental U.S.
Atmosphere, 2019 Lower-tropospheric wind maxima, known as low-level jets (LLJs), play a vital role in weather and climate around the world. In this study, two 10-year (2006–2015) regional climate simulations using current (2011) and future (2100) land-use/land ...
Jovanka Nikolic +5 more
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Offshore wind farms modify low-level jets
Abstract. Offshore wind farms are scheduled to be constructed along the east coast of the United States in the coming years. Low-level jets (LLJs) – layers of relatively fast winds at low altitudes – also occur frequently in this region. Because LLJs provide considerable wind resources, it is important to understand how LLJs might change with turbine ...
Daphne Quint +2 more
openaire +2 more sources
The ground vortex flow field associated with a jet in a cross flow impinging on a ground plane for uniform and annular turbulent axisymmetric jets [PDF]
An experimental study was conducted of the impingement of a single circular jet on a ground plane in a cross flow. This geometry is a simplified model of the interaction of propulsive jet exhaust from a V/STOL aircraft with the ground in forward flight ...
Cavage, William M., Kuhlman, John M.
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Advection-dominated accretion, jets and the spectral energy distribution of LINERs
, 2010 Low-luminosity active galactic nuclei (LLAGNs) represent the bulk of the AGN population in the present-day universe and they trace low-level accreting supermassive black holes. The observational properties of LLAGNs suggest that their central engines are
Falcke +5 more
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Free stream turbulence and density ratio effects on the interaction region of a jet in a cross flow [PDF]
, 1984 Jets of low temperature air are introduced into the aft sections of gas turbine combustors for the purpose of cooling the high temperature gases and quenching the combustion reactions.
Foss, J. F., Wark, C. E.
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