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Bed Load Discharge Coefficient
Journal of the Hydraulics Division, 1981Using dimensional analysis, the bed-load discharge coefficient for the case of two-dimensional flow over dunes is expressed in terms of bed-form geometry and the sand size of the bed material. Experiments are conducted in a rectangular flume using artifical dunes and a flow visualization method to measure the flow separation length from which the bed ...
Peter Engel, Y. Lam Lau
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The Effect of Rotation of Discharge Hole on the Discharge Coefficient and Pressure Coefficient
Transactions of the Korean Society of Mechanical Engineers B, 2003Pressure coefficient in rotating discharge hole was measured to gain insight into the influence of rotation to the discharge characteristics of rotating discharge hole. Pressure measurements were done by the telemetry system that had been developed by the authors.
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Discharge Coefficient for Siphon Spillways
Journal of Irrigation and Drainage Engineering, 2013AbstractThe study deals with the discharge coefficient for siphon spillways based on the results of experimental methods and numerical simulations. Siphon spillways are used as the outlet in reservoirs to control the incoming flood flows. A scaled plexiglass model of a siphon was fabricated and tested in the laboratory flume to determine the siphon ...
Rahim Tadayon, Amruthur S. Ramamurthy
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Discharge Coefficients of Fire Nozzles
Journal of Basic Engineering, 1966The most efficient nozzle is generally considered to be that for which the discharge coefficient is nearest unity. Forms and dimensions of the nozzles being equal, the greater the discharge coefficient, the less the jet turbulence becomes. The inefficiency of fire streams is directly attributable to the inital turbulence of the jet and this turbulence ...
Mitsukiyo Murakami, Kinji Katayama
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Coefficients of Discharge at the Aperatures of Engines
SAE Technical Paper Series, 1995<div class="htmlview paragraph">This paper reports on the experimental evaluation of certain aspects concerning the mathematical modelling of pressure wave propagation in engine ducting. A particular aspect is the coefficient of discharge of the various ports, valves or apertures of the ducting connected to the cylinder of an engine or to the ...
G. P. Blair +4 more
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Measurement of fundamental discharge coefficients
IEE Colloquium on Advances in HV Technology, 1996For the quantitative assessment and prediction of insulation discharge properties, one requires knowledge of quite a range of quantities referred to in the title as “discharge coefficients”. Their determination may require a variety of techniques, but one always needs a model of the discharge-preferably a simple one.
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2015
The discharge coefficient is required to measure flow using a differential-pressure meter. This chapter considers the discharge-coefficient equation for orifice plates: its history, some older equations, the database collected mostly in the 1980s and the analysis.
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The discharge coefficient is required to measure flow using a differential-pressure meter. This chapter considers the discharge-coefficient equation for orifice plates: its history, some older equations, the database collected mostly in the 1980s and the analysis.
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The discharge coefficient of effervescent atomizers
Experimental Thermal and Fluid Science, 2010Abstract The paper contains the results of experimental investigation of air–water atomization process in effervescent nozzles with internal mixing. The aim of study was analysis of pressure drop and discharge coefficient. The study was carried out at liquid flow rates changed from 0.0014 to 0.011 [kg/s] and gas flow rates from 0.00015 to 0.0065 [kg ...
M. Ochowiak +2 more
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2015
Four ASME (PTC 6) flow nozzles were manufactured together with upstream and downstream pipework in two pipe sizes. Throat and wall tappings were used. The flow nozzles were calibrated in water and in high-pressure nitrogen at 20 and 60 barg. The wall-tapping data are in excellent agreement with the discharge-coefficient equation in ISO 5167-3:2003: all
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Four ASME (PTC 6) flow nozzles were manufactured together with upstream and downstream pipework in two pipe sizes. Throat and wall tappings were used. The flow nozzles were calibrated in water and in high-pressure nitrogen at 20 and 60 barg. The wall-tapping data are in excellent agreement with the discharge-coefficient equation in ISO 5167-3:2003: all
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Discharge coefficient of subsurface weirs
Proceedings of the Institution of Civil Engineers - Water Management, 2014Experimental and numerical studies were performed to examine the relationship between the hydraulic properties and physical dimensions of a subsurface weir system and the discharge over it under steady-state conditions. Experimental modelling was based on a laboratory-scale physical sand-tank model, within which a subsurface dam and weir structure was
Abdorreza Kabiri-Samani +1 more
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