World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007)

By Castilla, R.

Click here to view

Book Id: WPLBN0004019812
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007)  
Author: Castilla, R.
Volume: Vol. 14, Issue 2
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2007
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: copernicus

Citation

APA MLA Chicago

Redondo, J. M., Gámez-Montero, P. J., Babiano, A., & Castilla, R. (2007). Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007). Retrieved from http://kindle.worldlibrary.net/


Description
Description: LABSON, Dpt. of Fluid Mechanics, U.P.C., Spain. We study numerically the comparison between Lagrangian experiments on turbulent particle dispersion in 2-D turbulent flows performed, on the one hand, on the basis of direct numerical simulations (DNS) and, on the other hand, using kinematic simulations (KS). Eulerian space-time structure of both DNS and KS dynamics are not comparable, mostly due to the absence of strong coherent vortices and advection processes in the KS fields. The comparison allows to refine past studies about the contribution of non-homogeneous space-time 2-D Eulerian structure on the turbulent absolute and relative particle dispersion processes. We particularly focus our discussion on the Richardson's regime for relative dispersion.

Summary
Particle dispersion processes in two-dimensional turbulence: a comparison with 2-D kinematic simulation.

Excerpt
Babiano, A., Basdevant, C., and Sadourny, R.: Structure functions and dispersion laws in two-dimensional turbulence, J. Atmos. Sci., 42, 942–949, 1985.; Babiano, A., Basdevant, C., Le Roy, P., and Sadourny, R.:. Single particle dispersion, Lagrangian structure function and Lagrangian energy spectrum in two-dimensional incompressible turbulence, J. Mar. Res., 45, 107–131, 1987.; Babiano,A., Basdevant, C., Le Roy, P., and Sadourny, R.: Relative dispersion in two-dimensional turbulence, J. Fluid Mech., 214, 535–557, 1990.; Babiano, A. and Le Roy, P.: Quelques remarques sur la formulation non autosimilaire des lois de dispersion relative en turbulence bidimensionnelle, C.R. Acad. Sci. Paris, 305, II, 5–8, 1987.; Batchelor, G. K.: Diffusion in fields of homogenous turbulence. II. The relative motion of particles, Proc. Camb. Phil. Soc., 48, 345–362, 1952.; Bennet, A. F.: A Lagrangian analysis of turbulent diffusion, Rev. Geophys., 25, 799–822, 1987.; Castilla, R.: Simulación Cinemática de Flujo Turbulento. Aplicación al Estudio de la Estructura de la Turbulencia y de la Difusión Turbulenta, PhD. U.P.C., 2001.; Elhma\idi, D., Babiano, A., and Provenzale, A.: Elementary topology of two-dimensional turbulence from Lagrangian viewpoint and single-particle dispersion, J. Fluid Mech., 257, 533–558, 1993.; Fung, J. C. H.: Kinematic simulation of turbulent flow and particle motion. PhD, University of Cambridge, 1990.; Fung, J. C. H., Hunt, J. C. D., Malik, N. A., and Perkins, R. J.: Kinematic Simulation of homogeneous turbulence by unsteady random Fourier modes, J. Fluid Mech., 236, 281–318, 1992.; Fung, J. C. H. and Vassilicos, J. C.: Two-particle dispersion in turbulentlike flows, Phys. Rev. E, 52, 1677–1690, 1998.; Kampé de Fériet, J.: Les fonctions aléatoires stationaires et la théorie statistique de la turbulence homogène, Ann. Soc. Sci. Bruxelles, 59, 145–194, 1939.; Kraichnan, R. H.: Dispersion of particle pairs in homogeneous turbulence, Phys. Fluids, 9, 1937–1943, 1966.; Kraichnan, R. H.: Diffusion by a random velocity field, Phys. Fluids, 13(1), 22–31, 1970.; LaCasce J. and Bower A.: Relative dispersion in the subsurface North Atlantic, 2000, J. Mar. Res., 58, 863–894, 2000.; Larchev\^eque M. and Lesieur, M.: The application of eddy-damped Markovian closure to the problem of dispersion of particle pairs, J. Mecanique, 20, 113–134, 1981.; Larchev\^eque, M.: Pressure field and coherent structures in two-dimensional incompressible flows, Theor. Comput. Fluid Dyn., 5, 215–222, 1993.; Lesieur, M. and Herring, J.: Diffusion of a passive scalar in two-dimensional turbulence, J. Fluid Mech., 161, 77–95, 1985.; Lin, C. C. and Reid, W. H.: Turbulent flows: theoretical aspects, in: Handbuch der Physik, Vol. VIII/2, Springer, Berlin, 438–523, 1963.; Malik, A. M. and Vassilicos, J. C.: A Lagrangian model for turbulent dispersion with turbulent-like flow structure: Comparison with direct numerical simulation for two-particle statistics, Phys. Fluids, 11(6), 1572–1580, 1999.; McWilliams, J. C.: The emergence of isolated coherent structures in turbulent flow, J. Fluid Mech., 146, 21–43, 1984.; Monin, A. S. and Yaglom, A. M.: Statistical Fluid Mechanics, The MIT Press, 1975.; Obukhov, A. M.: Energy distribution in the spectrum of turbulent flow, Izv. Akad. Nauk. SSSR, Ser.-Geogr. i Geofiz., 5, 453–466, 1941.; Okubo, A.: Horizontal dispersion of floating particles in the vicinity of velocity singularities such as convergence, Deep-sea Res., 17, 445–454, 1970.; Ollitrault, M. and Colin de Verdière, A.: SOFAR Floats Reveal Midlatitude Intermediate North Atlantic General Circulation. Part I: A Lagrangian Descriptive View, J. Phys. Oceanogr., 32, 2020–2033, 2002.; Pasquero, C., Provenzale, A., and Babiano, A.: Parameterization of disp

 

Click To View

Additional Books


  • Ensemble Kalman Filtering Without the In... (by )
  • Intermittency in Mhd Turbulence and Coro... (by )
  • Solute Transport in Fractured Media – An... (by )
  • Properties of Fast Solitary Structures :... (by )
  • Wavelet Analysis in a Structured Clay So... (by )
  • The Role of Nonlinear Landau Damping and... (by )
  • A Novel Method for Analyzing the Process... (by )
  • Solar Cycle Dependence of Scaling in Sol... (by )
  • Determining the Verse of Magnetic Turbul... (by )
  • Large Amplitude Solitary Waves in and Ne... (by )
  • Combining 2-m Temperature Nowcasting and... (by )
  • Analysis and Simulation of Bgk Electron ... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library on the Kindle are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.