The conditional mean acceleration of fluid particle in developed turbulence
作者： A. K. Aringazin
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摘要: Using the random intensity of noise (RIN) approach to one-dimensional Laval-Dubrulle-Nazarenko type model for Lagrangian acceleration in developed turbulence [cond-mat/0305186, cond-mat/0305459] we study probability density function and mean conditional on velocity fluctuations. The additive cross correlation between multiplicative noises are assumed be dependent fluctuations an exponential way. obtained fit results found a good qualitative agreement with recent experimental data statistics by Mordant, Crawford, Bodenschatz. observed is pure illustrative character which performed influence variation parameter shape distribution variance. should zero homogeneous isotropic turbulence. increases bigger fluctuation amplitude associated anisotropy studied flow.
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Eberhard Bodenschatz, Nicolas Mordant, Alice M. Crawford, Andy M. Reynolds, Comment on ``Dynamical Foundations of Nonextensive Statistical Mechanics" arXiv: Fluid Dynamics. ,(2002)
M. I. Mazhitov, A. K. Aringazin, Phenomenological Gaussian screening in the nonextensive statistics approach to fully developed turbulence arXiv: Condensed Matter. ,(2002)
A. K. Aringazin, Skewness of probability density functions of fluid particle acceleration in developed turbulence arXiv: Statistical Mechanics. ,(2004)
Ramandeep S. Johal, An interpretation of Tsallis statistics based on polydispersity arXiv: Statistical Mechanics. ,(1999)
N. Mordant, A.M. Crawford, E. Bodenschatz, Experimental Lagrangian acceleration probability density function measurement Physica D: Nonlinear Phenomena. ,vol. 193, pp. 245- 251 ,(2004) , 10.1016/J.PHYSD.2004.01.041
C. Beck, Lagrangian acceleration statistics in turbulent flows EPL. ,vol. 64, pp. 151- 157 ,(2003) , 10.1209/EPL/I2003-00498-4
A. K. Aringazin, M. I. Mazhitov, One-dimensional Langevin models of fluid particle acceleration in developed turbulence. Physical Review E. ,vol. 69, pp. 026305- ,(2004) , 10.1103/PHYSREVE.69.026305
N. Mordant, P. Metz, O. Michel, J.-F. Pinton, Measurement of Lagrangian Velocity in Fully Developed Turbulence Physical Review Letters. ,vol. 87, pp. 214501- ,(2001) , 10.1103/PHYSREVLETT.87.214501
Christian Beck, Generalized statistical mechanics and fully developed turbulence Physica A-statistical Mechanics and Its Applications. ,vol. 306, pp. 189- 198 ,(2002) , 10.1016/S0378-4371(02)00497-1
Toshiyuki Gotoh, Robert H. Kraichnan, Turbulence and Tsallis statistics Physica D: Nonlinear Phenomena. ,vol. 193, pp. 231- 244 ,(2004) , 10.1016/J.PHYSD.2004.01.034