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Characteristics of Skimming Flow over Stepped Spillways
Journal of Hydraulic Engineering, 1999The discusser wishes to congratulate the authors for their authoritative paper. He believes that the work is a necessary addition to the topic of stepped spillway flow. The paper presents a true systematic study of skimming flow. Despite the outstanding insights of the study, the discusser wishes to point two weaknesses: an inadequate analysis of the ...
M. R. Chamani, N. Rajaratnam
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Developing flow in skimming flow regime on embankment stepped spillways
Journal of Hydraulic Research, 2011In hydraulic engineering, stepped spillways are effective structures in regard to both energy dissipation and re-aeration processes. It is well known that flow depths and flow velocities generally depend on the spillway geometry in terms of slope and step-induced macro-roughness height on the one hand and the discharge on the other hand.
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Flow properties of freeze-concentrated skim milk
Journal of Food Engineering, 1997Abstract The flow properties of freeze-concentrated skim milk, determined with a concentric cylinder viscometer, were well described by the simple power-law rheological model over the temperature range from — 3.4 to + 20 °C. High-total-solids freeze-concentrated skim milk (35–40% total solids) exhibited non-Newtonian behaviour, while lower ...
Yi-Huang Chang, Richard W. Hartel
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OIL LAYER FLOW AROUND SKIMMING VESSELS
International Oil Spill Conference Proceedings, 1989ABSTRACT The flow of an oil layer around an advancing skimming vessel was investigated theoretically on the following assumptions: (1) the oil layer is so thin that the velocity distribution is uniform over the depth; (2) there is no shear and tension at the oil-water interface; and (3) the density difference between oil and water is so ...
Isao Suzuki +4 more
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Study on the Flow Behavior in the Low Flow Region of Skim Milk Solutions [PDF]
広島大学生物生産学部紀要, 1980 The flow equations of liquid foods are important for the designing and controlling of various apparatuses. In this paper, we studied the flow behavior of skim milk solutions under low concentration at various temperatures. For measuring the flow behavior, we used a capillary tube viscometer operated under various pressures.
Kubota, Kiyoshi +3 more
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Flow Characteristics of Skimming Flows in Stepped Channels
2006Ohtsu et al. must be congratulated for their systematic study of skimming flows on stepped channels with different slopes and step heights. Their experimental data provide a solid database that might lead to better and improved design criteria. Important outcomes include some estimate of friction factors for skimming flows and a design flow chart for ...
Gonzalez, Carlos A., Chanson, Hubert
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Skimming of microspheres in vitro: implications for measurement of intrarenal blood flow
American Journal of Physiology-Heart and Circulatory Physiology, 1981Skimming could result in erroneous estimation of renal cortical blood flow distribution as measured by microspheres. Skimming of microspheres with diameters 10, 12, and 15 micrometers and red blood cells was therefore studied in a model in which an interlobular artery and its first arteriolar branch were simulated by 80- and 30-micrometers-wide slits ...
E S, Ofjord, G, Clausen, K, Aukland
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Simulations on Skimming Flow over a Vertical Drop Pool
Journal of Engineering Mechanics, 2014AbstractThe installation of a drop pool in an open channel is aimed to dissipate the flow energy that diminishes the destruction of the downstream channel. Previous studies have been conducted experimentally on the hydraulic properties for flow over the pools. The numerical simulations based on the Reynolds average Navier-Stokes (RANS) equation and the
Ching-Piao Tsai +2 more
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Experimental Study of Turbulence Manipulation in Stepped Spillways: Implications on Flow Resistance in Skimming Flows [PDF]
, 2005 Current expertise in air-water turbulent flows on stepped chutes is limited to laboratory experiments at low to moderate Reynolds numbers on flat horizontal steps. In this study, highly turbulent air-water flows skimming down a large-size stepped chute were systematically investigated with a 22 degree slope.
Gonzalez, Carlos A., Chanson, Hubert
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Onset of Skimming Flow on Stepped Spillways
Journal of Hydraulic Engineering, 1999M. R. Chamani, N. Rajaratnam
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