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Constructive Modeling Of Structural Turbulence And Hydrodynamic Instabilities (Hardcover)
Loot Price: R4,291
Discovery Miles 42 910
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Constructive Modeling Of Structural Turbulence And Hydrodynamic Instabilities (Hardcover)
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Total price: R4,311
Discovery Miles: 43 110
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The book provides an original approach in the research of
structural analysis of free developed shear compressible turbulence
at high Reynolds number on the base of direct numerical simulation
(DNS) and instability evolution for ideal medium (integral
conservation laws) with approximate mechanism of dissipation (FLUX
dissipative monotone "upwind" difference schemes) and does not use
any explicit sub-grid approximation and semi-empirical models of
turbulence. Convective mixing is considered as a principal part of
conservation law.Appropriate hydrodynamic instabilities (free
developed shear turbulence) are investigated from unique point of
view. It is based on the concept of large ordered structures with
stochastic core of small scale developed turbulence ("turbulent
spot"). Decay of "turbulent spot" are simulated by Monte Carlo
method. Proposed approach is based on two hypotheses: statistical
independence of the characteristic of large ordered structures
(LOS) and small-scale turbulence (ST) "and" weak influence of
molecular viscosity (or more generally, dissipative mechanism) on
properties of large ordered structures.Two versions of
instabilities, due to Rayleigh-Taylor and Richtmyer-Meshkov are
studied detail by the three-dimensional calculations, extended to
the large temporal intervals, up to turbulent stage and
investigation turbulent mixing zone (TMZ).The book covers both the
fundamental and practical aspects of turbulence and instability and
summarizes the result of numerical experiments conducted over 30
years period with direct participation of the author.In the book
are cited the opinions of the leading scientists in this area of
research: Acad. A S Monin (Russia), Prof. Y Nakamura (Japan, Nagoya
University) and Prof. F Harlow (USA, Los-Alamos).
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