每年出版 4 期
ISSN 打印: 1065-3090
ISSN 在线: 1940-4336
Indexed in
FLOW VISUALIZATION OF LOW-MOMENTUM ELEVATED JETS IN CROSS-FLOWS
摘要
An experimental study has been conducted in a water channel to examine the structure of laminar jets issuing orthogonally into a cross-flow from a pipe extending far away from the channel's free surface and wall boundary layers; interest has been focused on the range of jet momentum fluxes that are significantly lower than the cross-flow momentum flux. Three familiar types of coherent structures have been identified: von Kármán vortices, a pipe-end vortex, and shear-layer vortices; an additional pattern, previously observed in a cursory manner only and presently termed "tendrils," has been found to appear under certain conditions. All types of structures have been documented qualitatively and quantitatively. The various physical mechanisms for the generation and evolution of vorticity throughout the flow have also been discussed.
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Conrad B.M., Thornock J.N., Johnson M.R., Beam steering effects on remote optical measurements of pollutant emissions in heated plumes and flares, Journal of Quantitative Spectroscopy and Radiative Transfer, 254, 2020. Crossref