 Discharge coefficient

In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge) is the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures
References
Coefficient of Discharge, J. B. Calvert, 15 June 2003
Categories: Fluid dynamics
 Fluid dynamics stubs
Wikimedia Foundation. 2010.
Look at other dictionaries:
discharge coefficient — noun : coefficient of discharge … Useful english dictionary
coefficient of discharge — the ratio of the actual discharge to the ideal discharge, assuming unit coefficients of contraction and velocity, equal to the product of these coefficients … Useful english dictionary
coefficient of contraction — physics : the ratio of the cross sectional area of the first vena contracta to the area of the discharge aperture … Useful english dictionary
Townsend discharge — The Townsend discharge is a gas ionization process where an initially very small amount of free electrons, accelerated by a sufficiently strong electric field, give rise to electrical conduction through a gas by avalanche multiplication: when the … Wikipedia
NashSutcliffe efficiency coefficient — The Nash Sutcliffe model efficiency coefficient is used to assess the predictive power of hydrological models. It is defined as:E=1 frac{sum {t=1}^Tleft(Q o^t Q m^t ight)^2}{sum {t=1}^Tleft(Q o^t overline{Q o} ight)^2}where Q o is observed… … Wikipedia
Nash–Sutcliffe model efficiency coefficient — The Nash–Sutcliffe model efficiency coefficient is used to assess the predictive power of hydrological models. It is defined as: where Qo is observed discharge, and Qm is modeled discharge. Qot is observed discharge at time t.[1] Nash–Sutcliffe… … Wikipedia
Flow coefficient — The flow coefficient of a device is a relative measure of its efficiency at allowing fluid flow. It describes the relationship between the pressure drop across an orifice, valve or other assembly and the corresponding flow rate.Coefficent of… … Wikipedia
weir coefficient — A coefficient used in transforming water depths into discharge volumes in weir measurements [16] … Lexicon of Cave and Karst Terminology
Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… … Wikipedia
Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is … Wikipedia