scholarly journals Determination of turbulent velocity correlations by the nonlinear scattering of crossed ultrasonic beams

1993 ◽  
Vol 94 (3) ◽  
pp. 1875-1875
Author(s):  
Murray S. Korman ◽  
James E. Parker
Keyword(s):  
Turbulent Velocity ◽  
Nonlinear Scattering

Resonance Rayleigh scattering and resonance nonlinear scattering methods for the determination of nicardipine hydrochloride using eosin Y as a probe

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25887-25893 ◽  
Author(s):  
Junbo Li ◽  
Xiaoli Yang ◽  
Jinxiang Yang ◽  
Lina Lai
Keyword(s):  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Eosin Y ◽  
Nonlinear Scattering ◽  
Quick Method ◽  
Highly Sensitive

A novel, highly sensitive, simple and quick method to determine nicardipine hydrochloride by RRS, SOS and FDS were established.

Empirical determination of universal multifractal exponents in turbulent velocity fields

1992 ◽  
Vol 68 (3) ◽  
pp. 305-308 ◽  
Author(s):  
F. Schmitt ◽  
D. La Vallée ◽  
D. Schertzer ◽  
S. Lovejoy
Keyword(s):  
Velocity Fields ◽  
Turbulent Velocity ◽  
Empirical Determination

On the entrainment rate across a density interface

1988 ◽  
Vol 188 ◽  
pp. 185-204 ◽  
Author(s):  
R. I. Nokes
Keyword(s):  
Mixed Layer ◽  
Power Law ◽  
Richardson Number ◽  
Decay Rates ◽  
Turbulent Velocity ◽  
Entrainment Rate ◽  
Empirical Expression ◽  
Velocity Scale ◽  
Velocity Decay

Mixed-layer deepening due to grid-generated turbulence is studied experimentally with the aim of explaining the contradictory results of previous studies. Entrainment rates are calculated at fixed distances from the grid in order to avoid the necessity of using an empirical expression for the decay of the turbulent velocity scale. It is shown that an incorrect form of this decay law can cause large errors in the predicted Richardson number dependence of the entrainment rate. For this study this dependence can be expressed as a power law of the form E = KRi−1,2. The spread of the results imply that an error of at least ± 10% is realistic in the determination of the exponent.The turbulent velocity decay law is also deduced from the data, and it is found that the decay cannot be represented by a simple power law. Indeed two distinct flow regions, with differing decay rates, are present.

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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