isentropic

Related to isentropic: Isentropic flow, Polytropic

isentropic

[¦īs·ən¦träp·ik]

(thermodynamics)

Having constant entropy; at constant entropy.

References in periodicals archive ?

The compressor power is related to the mass flow rate through the compressor [m.sub.c], the isentropic efficiency [[eta].sub.c] and the inlet and outlet temperatures and pressures.

Investigation of Intake and Exhaust Manifolds Parameters of a Turbocharged Diesel Engine Based on Steady-State Simulation

b = 0.164 Btu/ (lb [degrees]F) - coefficient, universal for each isentropic line in the most typical temperatures area: 32[degrees]F <[T.sub.e]< 45[degrees]F, 54[degrees]F < [T.sub.c] < 105[degrees]F (b= 0.688 kJ/kg/[degrees]C; 0[degrees]C < [T.sub.e] < 7.2[degrees]C, 12[degrees]C <[T.sub.c]< 41[degrees]C)

Method for Centrifugal Chiller Power Estimation and Prediction: Development and Verification

where M is, again, the measured torque around axis of cylinder liner, m is the measured mass flow through the inlet valve, [R.sub.cyl] is the radius of the cylinder, [U.sub.is] is the isentropic valve velocity, [P.sub.R] is the absolute pressure ratio (static outlet pressure/total inlet pressure), R is the gas constant, [gamma] is the specific heat ratio and [T.sub.0] is the upstream stagnation temperature.

Active Control of Cylinder Charge Motion Using Vortex Generating Jets (VGJs) on Generic Intake Port Geometries

The ECMWF interim reanalysis of log(PV) along the 3S5-K isentropic surface during the period of strong intensification for each of the major Atlantic hurricanes of 2017.

OUTFLOW ENVIRONMENTS OF HARVEY, IRMA, JOSE, AND MARIA WERE ESPECIALLY FAVORABLE IN 2017

Similarly, an in situ compressor isentropic efficiency can be defined as the ratio of the isentropic enthalpy change of the refrigerant stream passing through the compressor to the power consumed by the compressor.

Performance of Low GWP Refrigerant R-516A in an Air-Cooled Chiller

The nominal point corresponds to a maximum of 93.05% of total-to-total isentropic efficiency and 85.63% of total-to-static isentropic efficiency at the nominal speed and reduced mass flow rate of 1.638 x [10.sup.-3][kg x [s.sup.-1][K.sup.0,5][Pa.sup.-1]] which corresponds to a mass flow of 69.5 kg/s.

Characterization of Flow Interactions in a One-Stage Shrouded Axial Turbine

We mainly use the method of vanishing pressure limits which was introduced by Li [30] and Chen and Liu [31, 32] in which they studied the formation of delta shocks and vacuum states in the vanishing pressure limit of solutions to the isentropic Euler equations and the concentration and cavitation in the vanishing pressure limit of solutions to the Euler equations for nonisentropic fluids.

The Convergence of Riemann Solutions to the Modified Chaplygin Gas Equations with a Coulomb-Like Friction Term as the Pressure Vanishes

The mass fraction of vapor, [x.sub.v], is determined as a function of local pressure p by the isentropic relationship

Pressure Waves due to Rapid Evaporation of Water Droplet in Liquid Lead Coolant

At standard temperature and pressure conditions, the bulk modulus [B.sub.o] of air is 1.42 x [10.sup.5] Pa for an isentropic process.

The Effect of Geometrical Parameters on Resonance Characteristics of Acoustic Metamaterials with Negative Effective Modulus

The iso-[[theta].sub.e] process is also called an isentropic atmospheric process.

A Study on Parameterization of the Beijing Winter Heavy Haze Events Associated with Height of Pollution Mixing Layer

MC inlet pressure of 7.38Mpa and compressor isentropic efficiency of 89% are selected.

Thermodynamic Analysis of Supercritical C[O.sub.2] Power Cycle with Fluidized Bed Coal Combustion

Polytropic CAES with one, two, and three stages and an isentropic CAES were considered.