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A model of a homogeneous isotropic turbulent flow and its application for the simulation of cloud drop tracks

 

作者: M. Pinsky,   A. Khain,  

 

期刊: Geophysical & Astrophysical Fluid Dynamics  (Taylor Available online 1995)
卷期: Volume 81, issue 1-2  

页码: 33-55

 

ISSN:0309-1929

 

年代: 1995

 

DOI:10.1080/03091929508229069

 

出版商: Taylor & Francis Group

 

关键词: Homogeneous and isotropic turbulence;random field;correlation functions;cloud drops;drop velocity fluctuations.

 

数据来源: Taylor

 

摘要:

A model of a homogeneous isotropic turbulent flow is presented. The model provides different realizations of the random velocity field component with given correlation latitudinal and lateral functions and a spatial structure which obeys the Kolmogorov theory of homogeneous and isotropic turbulence. For the generation of the turbulent flow the structural function of the flow in the form suggested by Batchelor (Monin and Yaglom, 1975) was used. This function describes the spectrum of turbulence both in the viscous and inertial ranges. The isotropy and homogeneity of the velocity field of the model are demonstrated.

 

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