Entropy production in vibrational- nonequilibrium nozzle flow

AIAA Journal ◽  
1964 ◽  
Vol 2 (2) ◽  
pp. 397-398 ◽  
Author(s):  
LAURENCE N. CONNOR ◽  
WAYNE D. ERICKSON
Keyword(s):  
Entropy Production ◽  
Nozzle Flow ◽  
Vibrational Nonequilibrium

scholarly journals Die physikalischen Grundlagen der Uran235-Anreicherung nach dem Trenndüsenverfahren / The Physics of Uranium235-Enrichment in the Separation Nozzle Process

1973 ◽  
Vol 28 (8) ◽  
pp. 1273-1280 ◽  
Author(s):  
P. Bley ◽  
R. Dürr ◽  
W. Ehrfeld ◽  
G. Eisenbeiß
Keyword(s):  
Energy Consumption ◽  
Kinetic Energy ◽  
Entropy Production ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Navier Stokes ◽  
Nozzle Flow ◽  
Production Mechanism ◽  
Separation System ◽  
Type Pressure

The energy consumption of the separation nozzle process for enrichment of U235 is discussed in terms of the entropy production in the separation system. Experimental results obtained from measurements with Pitot type pressure probes and a numerical Navier-Stokes analysis of the nozzle flow show that ordinary viscous dissipation is the most important entropy production mechanism. The relatively large amount of kinetic energy observed at the end of the nozzle indicates some possibilities of lowering the specific energy consumption of the process.

INTERNAL AND NEAR-NOZZLE FLOW OF A PRESSURE-SWIRL ATOMIZER UNDER VARIED FUEL TEMPERATURE

2007 ◽  
Vol 17 (6) ◽  
pp. 529-550 ◽  
Author(s):  
Seoksu Moon ◽  
Choongsik Bae ◽  
Essam F. Abo-Serie ◽  
Jaejoon Choi
Keyword(s):  
Nozzle Flow ◽  
Fuel Temperature ◽  
Swirl Atomizer ◽  
Pressure Swirl ◽  
Pressure Swirl Atomizer

Confined coaxial nozzle flow with central lobed mixer at different velocity ratios

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 349-358 ◽  
Author(s):  
S. C. M. Yu ◽  
X. G. Xu
Keyword(s):  
Nozzle Flow ◽  
Coaxial Nozzle

Nozzle flow separation

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1618-1625 ◽  
Author(s):  
G. L. Romine
Keyword(s):  
Flow Separation ◽  
Nozzle Flow

2-D multispecies Raman imaging of an underexpanded nozzle flow with KrF and ArF excitation

2000 ◽  
Author(s):  
N. Sijtsema ◽  
R. Tolboom ◽  
N. Dam ◽  
J. ter Meulen
Keyword(s):  
Raman Imaging ◽  
Nozzle Flow

Complete monotonicity of entropy production in chemical reaction

1981 ◽  
Vol 46 (2) ◽  
pp. 452-456
Author(s):  
Milan Šolc
Keyword(s):  
Entropy Production ◽  
Equilibrium Constant ◽  
Chemical Reaction ◽  
Relative Entropy ◽  
Order Reaction ◽  
Complete Monotonicity ◽  
First Order Reaction ◽  
First Order ◽  
Completely Monotonic ◽  
Derivatives Of

The successive time derivatives of relative entropy and entropy production for a system with a reversible first-order reaction alternate in sign. It is proved that the relative entropy for reactions with an equilibrium constant smaller than or equal to one is completely monotonic in the whole definition interval, and for reactions with an equilibrium constant larger than one this function is completely monotonic at the beginning of the reaction and near to equilibrium.

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