Results 251 to 260 of about 260,166 (304)

Bed Load Discharge Coefficient

Journal of the Hydraulics Division, 1981
Using 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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Discharge coefficient of subsurface weirs

Proceedings of the Institution of Civil Engineers - Water Management, 2014
Experimental 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, Mohammad-Reza Shams   +1 more
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Discharge coefficients through perforated plates

AIChE Journal, 1957
AbstractThe design variables that affect the pressure drop across dry perforated plates were determined and correlated. Average orifice coefficients were calculated for the perforated plates by using a modified form of the single‐orifice flow equation.The variables which affected the orifice coefficients were found to be the hole diameter, hole pitch ...
P. A. Kolodzie, Matthew Van Winkle
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Discharge Coefficient for Siphon Spillways

Journal of Irrigation and Drainage Engineering, 2013
AbstractThe 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 coefficient and loss coefficient

2022
The article deals with natural ventilation in air vents of the chimney type by applying the principle of balance of mechanical energy. The connection between the concept of discharge coefficient and the loss coefficient of duct flow is introduced. Control volume treatments have important roles. Two simple application examples are given.
Salonen, Eero-Matti, Holopainen, Rauno
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Discharge Coefficients of Fire Nozzles

Journal of Basic Engineering, 1966
The 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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Measurement of fundamental discharge coefficients

IEE Colloquium on Advances in HV Technology, 1996
For 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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Nozzle Discharge Coefficients—Compressible Flow

Journal of Fluids Engineering, 1974
Using Walz’s approximation method for boundary layer calculation, along with a one-dimensional treatment of the compressible inviscid core flow, discharge coefficients for small nozzle to pipe diameter ratios have been calculated. Discharge co-efficients calculated for the ASME long radius nozzle agree with those recommended by the ASME Power Test Code.
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Discharge Coefficients for Miniature Fuel Injectors

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 1989
This technical note presents experimentally determined discharge coefficients for miniature, sharp-edged, short-tube orifice injectors operating under quasi-steady conditions in the pre and post-hydraulic flip stages.
T A Fox, J Stark
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