Results 161 to 170 of about 390,601 (208)

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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Nozzle Discharge Coefficient

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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Discharge Coefficient of Rectangular Side Weirs

Journal of Irrigation and Drainage Engineering, 1994
The characteristics of flow over side weirs are taken into account to determine the discharge coefficient for subcritical flow conditions under the assumption of constant‐specific energy. The main‐channel discharge, length of the weir crest, and sill height of the weir are treated as the controlled variables.
R. Singh, D. Manivannan, T. Satyanarayana   +2 more
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Orifice Discharge Coefficient

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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Briefing: Discharge coefficient for sluice gates

Proceedings of the Institution of Civil Engineers - Water Management, 2010
Using the theory of potential flow, an equation has been developed to determine the discharge coefficient of a sluice gate (Cd). To assess the developed equation for Cd, 84 laboratory experiments were conducted. Comparison of Cd values determined from experiments and calculated from the proposed equation gave very good results. Comparisons between the
S. Bagheri, H. Afzalimehr, J. Sui
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Discharge Coefficients for Baffle-Sluice Gates

Journal of Irrigation and Drainage Engineering, 2013
AbstractIn this work, the discharge coefficients of four well-defined operation stages of baffle-sluice gates are presented and modeled using the individual contributions of weir and sluice flow components. Existing empirical relationships proved effective to model the discharge.
Mishra, P. K., Brevis, W., Lang, C.
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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, 2003
Pressure 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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