The authors present the results of numerical experiments carried out to examine the problem of development of turbulence and convection. On the basis of the results, they propose a physical model of the development of turbulence. Numerical algorithms and difference schema for carrying out numerical experiments in hydrodynamics, are proposed. Original algorithms, suitable for calculation of the development of the processes of turbulence and convection in different conditions, even on astrophysical objects, are presented. The results of numerical modelling of several important phenomena having both fundamental and applied importance are described.
1. Fundamental aspects of direct numerical modelling of free turbulence and hydrodynamic instabilities (modelling of coherent structures in turbulence); 2. Computing models and methods for examining nonlinear multidimensional problems; 3. Selected results (calculation of coherent structures, numerical modelling of the stochastic component of turbulence, statistical modelling of free turbulence flows, Rayleigh-Zel'dovich problem, numerical modelling of processes of propagation of impurities in the atmosphere from a large-scale source; 4. Astrophysical turbulence, convection and instabilities (structure of the accretion disc, effect of viscosity on the morphology of the flow of matter, large-scale structure of turbulence in accretion discs, convective instability in astrophysics
Number Of Pages: 296
Published: 1st October 2005
Publisher: Cambridge International Science Publishing
Country of Publication: GB
Dimensions (cm): 23.4 x 15.6
Weight (kg): 0.56