Adiabatic exponent

TI = Suction temperature, °R P, Pi = Suction, discharge pressures, psia K = Adiabatic exponent. Cp/C,... 

K = Adiabatic exponent, Cp/Cv N = Polytropic exponent, (N - 1)/N - (K Pi, P- = Suction, discharge pressures, psia Ti, = Suction, discharge temperatures, °R Ep = Polytropic efficiency, fraction... 

Academic des Sciences, 224 Accelerometers, 349 Accumulators, 317 Acoustic Velocity, 26, 39 Adiabatic, 30 Adiabatic efficiency dry, helical, 101 sliding vane, 126 Adiabatic exponent for air-vapor mixtures, 494 Adiabatic head, 32 Adiabatic head... 

T = suction temperature, °R Pi, P2 = suction, discharge pressures, psia K = adiabatic exponent,Cp/Cv... 

The predicted adiabatic exponent increases with increase in volume, until the volume corresponding to the minimum in the interaction potential energy is reached. These predictions were borne out by the experimental data reported by J.W. Kury et al (Ref 15, pp 3-12)... 

Theory. If p is pressure, v - specific volume, e - specific internal energy, D detonation velocity, u - particle velocity, C - sound velocity, y - adiabatic exponent and q -specific.detonation energy, the velocity of propagation and particle velocity immediately behind any plane detonation wave in an explosive, defined by initial conditions, pD, v0, eQ, and uQ, are given by the first two Rankine-Hugoniot relations ... 

The adiabat is curved concave upwards., and has an adiabatic exponent which tends to approach 1+w at very low pressures... 

When the exponential term dominates, the adiabatic exponent is y kv which means that it decreases with decreasing volume. The behavior is therefore poor at high pressures... 

V specific volume 7 adiabatic exponent A dimensionless distance based on energy =... 

Hoskin Lambourn (Ref 26) examined the system of a detonation initiated simultaneously at the expl face in contact with one of two metal plates, ie, an asymmetric metal/expl/metal sandwich . They assumed that the detonation products are isentropic with a constant adiabatic exponent = 3, and showed that the motion of both plates can be determined by the continued reflection of centered simple waves. The path of the reflected shock was followed by an approximate method for two traverses of the detonation products, and the process can be continued indefinitely... 

It may be due to the equation of state for which the deviation of the adiabatic exponent from 4/3 is small, i.e., e = 4/3-y < 0.05. However, we have to show that this proximity to N=3 should be practically be kept even during the collapse. For the structure close to N=3 the linearized stability theory for stellar structure has a wider applicability, since the... 

Where Zg is average gas compressibility factor, R = 1,544, T is temperature (R), Pj is inlet pressure (psia), P2 is outlet pressure (psia), k is adiabatic exponent and Ep is adiabatic efficiency, and... 

In the above equation, L is the length over which the pressure drop p — p2 is to be calculated pi is the absolute pressure of the flow at an upstream point 1, and p2 is the absolute pressure of the flow at a downstream point 2 / is the Darcy-Weisbach friction factor that can be determined from the Moody Diagram y is the adiabatic exponent (equal to 1.4 for air) and Mi is the Mach number of the flow at the upstream point 1. In addition to the pressure equations, the following equation of state of ideal gas is also needed ... 

The Expansion Factor Y. This corrects for density changes between taps. Y depends on the adiabatic exponent (k = CJC ), absolute pressure ratio (AP/P ), and the ratio, p, between restriction diameter and the inside pipe diameter. For liquid flow, Y = 1.0. For gas flow, Buckingham derived the equation [3] ... 

In ionisation zones, the adiabatic exponent 7 becomes smaller approaching unity, and k becomes large, so that radiative equilibrium may be violated for small values of the temperature gradient. This gives rise to opacity-driven convection in the envelopes of cool stars. 

The index 0 indicates properties of the evacuated aerogel, k is an effective adiabatic exponent for the system gas-skeleton. For most aerogels it is very close to unity. Only at extremely low aerogel densities does it become both larger and pressure dependent [65]. In Fig. 6, the variation in Ci with gas pressure is depicted for air and SFe for p = 5 kg/m3 aerogel. 

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