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Study on the Flow Behavior in the Low Flow Region of Skim Milk Solutions
Study on the Flow Behavior in the Low Flow Region of Skim Milk Solutionsopenaire
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Flow Characteristics of Skimming Flows in Stepped Channels
Journal of Hydraulic Engineering, 2004Ohtsu 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 ...
I. Ohtsu, Y. Yasuda, M. Takahashi
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Onset of Skimming Flow on Stepped Spillways
Journal of Hydraulic Engineering, 2001Assuming that skimming flow occurs when the jet leaving a step has a slope equal to that of the stepped spillway when it impinges on the pool behind it on the next step, an equation has been developed to predict the incipient value of \Iy\dc/\ih, where \iy\dc = critical depth and \ih = step height. This equation was found to agree well with most of the
C. S. James +9 more
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Aerated flow characteristics of skimming flow over stepped chutes
Journal of Hydraulic Research, 2013By MASAYUKI TAKAHASHI and IWAO OHTSU, J. Hydraulic Res. 50(4), 2012, 427–434The discussers read the paper with interest and congratulate the authors for their remarkable contribution.
Boes, Robert M. +2 more
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Characteristics of Skimming Flow over Stepped Spillways
Journal of Hydraulic Engineering, 2000The 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 ...
Boes, Robert M. +10 more
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Skimming Flow in Stepped Spillways
Journal of Hydraulic Engineering, 1990Flow on stepped spillways can be divided into nappe and skimming flow regimes. This technical note presents an approximate method of predicting the characteristics of skimming flow on stepped spillways. Expressing the turbulent shear stress between the skimming stream and the recirculating fluid, trapped by the stream between the steps, in terms of a ...
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Developing flow in skimming flow regime on embankment stepped spillways
Journal of Hydraulic Research, 2012By DANIEL B. BUNG, Journal of Hydraulic Research, Vol. 49, No. 5 (2011), pp. 639–648 The author investigated the air concentration, the aerated flow velocity, and the flow depth in the developing f...
Masayuki Takahashi, Iwao Ohtsu
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Aerated flow characteristics of skimming flow over stepped chutes
Journal of Hydraulic Research, 2012Stepped chutes effectively dissipate the energy of supercritical flow of steep channels. In general, stepped chute flows are characterized by self-aeration. For their hydraulic design, it is important to know the aerated flow depth, the aerated flow velocity, the air concentration, and the specific energy. Herein, quasi-uniform aerated skimming flow is
Masayuki Takahashi, Iwao Ohtsu
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Hydraulics of Skimming Flow on Modeled Stepped Spillways
Journal of Hydraulic Engineering, 2000Two sets of models of stepped spillways of slope 1 upon 0.6 with the same crest-shape and with a range of step sizes (0.25–2.0 m on the 1:10 scale and 0.5–2.0 m on the 1:20 scale models) were built and studied. In the range of prototype unit flows considered (0.8–3.8 m2/s on the 1:10 scale models and 1.8–21.7 m2/s on the 1:20 models), the residual ...
Boes, Robert M. +10 more
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