Nonlinear Nonlocal And Fractional Turbulence
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Nonlinear, Nonlocal and Fractional Turbulence
Author: Peter William Egolf
language: en
Publisher: Springer Nature
Release Date: 2020-04-02
Experts of fluid dynamics agree that turbulence is nonlinear and nonlocal. Because of a direct correspondence, nonlocality also implies fractionality. Fractional dynamics is the physics related to fractal (geometrical) systems and is described by fractional calculus. Up-to-present, numerous criticisms of linear and local theories of turbulence have been published. Nonlinearity has established itself quite well, but so far only a very small number of general nonlocal concepts and no concrete nonlocal turbulent flow solutions were available. This book presents the first analytical and numerical solutions of elementary turbulent flow problems, mainly based on a nonlocal closure. Considerations involve anomalous diffusion (Lévy flights), fractal geometry (fractal-β, bi-fractal and multi-fractal model) and fractional dynamics. Examples include a new ‘law of the wall’ and a generalization of Kraichnan’s energy-enstrophy spectrum that is in harmony with non-extensive and non-equilibrium thermodynamics (Tsallis thermodynamics) and experiments. Furthermore, the presented theories of turbulence reveal critical and cooperative phenomena in analogy with phase transitions in other physical systems, e.g., binary fluids, para-ferromagnetic materials, etc.; the two phases of turbulence identifying the laminar streaks and coherent vorticity-rich structures. This book is intended, apart from fluids specialists, for researchers in physics, as well as applied and numerical mathematics, who would like to acquire knowledge about alternative approaches involved in the analytical and numerical treatment of turbulence.
Strategy in a Turbulent Era
Author: Ashton L. Hawk
language: en
Publisher: Edward Elgar Publishing
Release Date: 2024-01-18
Offering a practical and phenomenon-driven perspective, Strategy in a Turbulent Era expertly analyses questions relating to strategy in light of different forms of turbulence. From the global COVID-19 pandemic outbreak to the escalation in number and far reaching implications of new technologies, such as artificial intelligence and cryptocurrencies, this timely book explores how recent sources of turbulence are rapidly transforming the nature and dynamics of global competition.
Proceedings of the 10th International Conference on Mechanical, Automotive and Materials Engineering
This book consists of selected papers presented at the 10th International Conference on Mechanical, Automotive and Materials Engineering (CMAME 2023), held in Da Nang, Vietnam, on 20–22 December 2023. Readers find this book a vehicle for the dissemination of research results on latest advances made in this area. It is expected that the publication of the research papers with the advanced topics listed in this book will further promote high standard academic research in the field and make a significant contribution to the development of human society. Topics that will be covered in this book include but not limited to: materials science and engineering; engine system design and power machinery; mechanical design-manufacture and automation; design and analysis of robot systems; automobile design and manufacturing engineering; thermal and fluid mechanics analysis; aircraft structural design and system control; control theory and engineering applications; electronic information technology. This book is intended for researchers, engineers, and advanced postgraduate students in the fields of automotive, production, industrial engineering and design.