scholarly journals Correspondence between momentum-dependent relaxation time and field redefinition of relativistic hydrodynamic theory

2022 ◽  
Vol 105 (1) ◽  
Author(s):  
Sukanya Mitra
Keyword(s):  
Relaxation Time ◽  
Hydrodynamic Theory ◽  
Relativistic Hydrodynamic ◽  
Field Redefinition

Relativistic Hydrodynamic Theory of Heavy-Ion Collisions

1975 ◽  
Vol 35 (14) ◽  
pp. 905-908 ◽  
Author(s):  
A. A. Amsden ◽  
G. F. Bertsch ◽  
F. H. Harlow ◽  
J. R. Nix
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Hydrodynamic Theory ◽  
Relativistic Hydrodynamic ◽  
Ion Collisions

The Rayleigh–Brillouin spectrum of hydrogen at high densities

1978 ◽  
Vol 56 (9) ◽  
pp. 1168-1174 ◽  
Author(s):  
A. D. May ◽  
M. Hubert ◽  
V. Ghaem-Maghami
Keyword(s):  
Relaxation Time ◽  
Theoretical Calculations ◽  
Hydrodynamic Theory ◽  
Normal Hydrogen ◽  
Brillouin Spectrum

The Rayleigh–Brillouin spectrum of light scattered from hydrogen at high densities is reported. The observations are compared with translational hydrodynamic theory and ultrasonic experiments. The range of densities includes the relaxation region and we find evidence for multiple relaxation. A mean relaxation time for normal hydrogen at 24 °C of (1.41 ± 0.06) × 10−8 s is found, in agreement with theoretical calculations.

An Analysis of Stress Relaxation in Elastico-Viscous Fluid Lubrication of Journal Bearings

1978 ◽  
Vol 100 (2) ◽  
pp. 287-294 ◽  
Author(s):  
A. Harnoy
Keyword(s):  
Relaxation Time ◽  
Stress Relaxation ◽  
Load Capacity ◽  
Experimental Studies ◽  
Relaxation Effect ◽  
Journal Bearings ◽  
Friction Torque ◽  
Hydrodynamic Theory ◽  
Lubrication Film ◽  
Bearing Load

The hydrodynamic theory of lubrication in journal bearings is extended to elastico-viscous lubricants. The stress relaxation effect upon flow, pressure distribution, friction, and bearing load capacity is considered. This analysis deals with the case of a small relaxation time compared with the transit time required for the lubricant to pass through the bearing. A lubricant model is assumed with a constant relaxation time and without any cross stresses. It is found that the bearing load capacity of an elastic liquid lubrication film is higher than that of a Newtonian one, while the friction torque remains unchanged. Existing experimental studies have shown considerable improvement in journal bearing performance with elastico-viscous lubricants. This analysis suggests stress relaxation to be one of the factors giving rise to this improvement.

NUCLEAR SPIN-LATTICE RELAXATION TIME IN TIN

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-1215-C6-1216
Author(s):  
H. Ahola ◽  
G.J. Ehnholm ◽  
S.T. Islander ◽  
B. Rantala
Keyword(s):  
Relaxation Time ◽  
Nuclear Spin ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Spin Lattice Relaxation Time ◽  
Spin Lattice ◽  
Nuclear Spin Lattice Relaxation

MAGNETIC FIELD DEPENDENT RELAXATION TIME IN p-InSb AT LOW TEMPERATURES

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-689-C5-693
Author(s):  
J. D.N. Cheeke ◽  
G. Madore ◽  
A. Hikata
Keyword(s):  
Magnetic Field ◽  
Relaxation Time ◽  
Low Temperatures ◽  
Field Dependent
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