Mixture fraction () is a quantity used in combustion studies that measures the mass fraction of one stream (usually the fuel stream) of a mixture formed by two feed streams, one the fuel stream and the other the oxidizer stream.[1][2] Both the feed streams are allowed to have inert gases.[3] The mixture fraction definition is usually normalized such that it approaches unity in the fuel stream and zero in the oxidizer stream.[4] The mixture-fraction variable is commonly used as a replacement for the physical coordinate normal to the flame surface, in nonpremixed combustion.
^Williams, F. A. (2018). Combustion theory. CRC Press.
^Peters, N. (2001). Turbulent combustion.
^Peters, N. (1992). Fifteen lectures on laminar and turbulent combustion. Ercoftac Summer School, 1428, 245.
^Liñán, A., & Williams, F. A. (1993). Fundamental aspects of combustion.
Mixturefraction ( Z {\displaystyle Z} ) is a quantity used in combustion studies that measures the mass fraction of one stream (usually the fuel stream)...
expressing the composition of a mixture as a dimensionless quantity are mass fraction and volume fraction are others. Mole fraction is used very frequently in...
volume fraction φ i {\displaystyle \varphi _{i}} is defined as the volume of a constituent Vi divided by the volume of all constituents of the mixture V prior...
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differential equation for mixturefraction and after solving the transport equation for the mixturefraction the corresponding mass fractions for fuel and oxidant...
and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it...
}\cdot p} The mole fraction of a gas component in a gas mixture is equal to the volumetric fraction of that component in a gas mixture. The ratio of partial...
of each fraction of a mixture is attributable to each component without attempting to harvest the fractions. preparative: to "prepare" fractions for input...
coefficients of zeotropic mixtures do not increase proportionately with the mass fractions of the mixture's components. Zeotropic mixtures have different characteristics...
confused with volume fraction) is defined as the volume of a constituent V i {\displaystyle V_{i}} divided by the volume of the mixture V {\displaystyle V}...
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breathing gases. Gas mixtures are usually specified in terms of molar gas fraction (which is closely approximated by volumetric gas fraction for many permanent...
ongoing separation in which a mixture is continuously (without interruption) fed into the process and separated fractions are removed continuously as output...
through the column at different rates, allowing them to be separated into fractions. The technique is widely applicable, as many different adsorbents (normal...
equipment used in the distillation of liquid mixtures to separate the mixture into its component parts, or fractions, based on their differences in volatility...
is charged (supplied) with a batch of feed mixture, which is then separated into its component fractions, which are collected sequentially from most...
a mixture into its component parts, or fractions. Chemical compounds are separated by heating them to a temperature at which one or more fractions of...
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ways to define the composition of a mixture. It may be expressed as molar fraction, volume fraction, mass fraction, molality, molarity or normality or...
Mass fraction may refer to: Mass fraction (chemistry), it is the ratio of mass of a constituent to the total mass of the mixture Fuel mass fraction Propellant...
similar in value to molecular mole fraction for gas mixtures at relatively low densities and pressures, and ideal gas mixtures. Most abundance values in this...
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