Turbulent Transformations


Book Description

"This book studies the interlinking of religious, social and political identities in modern Tamil Nadu. Through interviews with non-Brahmin Srivaisnavas of many castes, but especially belonging to the lower-caste groups, it analyses their histories of discrimination, their negotiation of lived realities, and hopes for the future. The interviews all refer to the history of Srivaisnavism, an historically important Hindu sect in the region, the religion's theology of caste inclusiveness, and history of Brahmin leadership exclusiveness.In addition, the author also addresses colonial changes, Telugu connections, the non-Brahmin movement, Dalit mobilisation, post-Independence caste hierarchies, government policies, party politics, Brahmin reactions, court cases, and inter-religious competition.Turbulent Transformations breaks new ground by highlighting radical non-Brahmin leaders in the colonial period. It probes the Srivaisnava connections of prominent political figures such as Periyar and Jayalalithaa. And it explores the relation of the temples, the state, and the Supreme Court over questions such as 'who is allowed to be a priest'.This book provides insights into new configurations of democracy, caste and modern lived Hinduism. It fills the lacunae created by Brahmin narratives, scholarly studies focused on Tamil Saivism or Christianity, and political and sociological analyses removed from the dynamic pulse of religion in interaction with the non-Brahmin movement over the past century."--




A Transformation relating temporal and spatial spectra of turbulent kinetic energy


Book Description

A transformation is developed, based upon the scale dependence of turbulent diffusion, that relates temporal and spatial spectra of turbulent kinetic energy. The basic idea is that an eddy diffusivity is appropriate when scales of the flow smaller than a length e and a time tare unresolved. An expression similar to Heisenberg's for eddy diffusivity is used to obtain the connection between e and t necessary to transform temporal spectra into spatial spectra. This transformation reveals a close connection between Webster's Site D spectrum of turbulent kinetic energy in the ocean and Okubo's diagrams of oceanic mixing. Furthermore, all spectra obtained from dimensional arguments satisfy this transformation.




Electromagnetic Wave Propagation in Turbulence


Book Description

Electromagnetic Wave Propagation in Turbulence is devoted to a method for obtaining analytical solutions to problems of electromagnetic wave propagation in turbulence. In a systematic way the monograph presents the Mellin transforms to evaluate analytically integrals that are not in integral tables. Ample examples of application are outlined and solutions for many problems in turbulence theory are given. The method itself relates to asymptotic results that are applicable to a broad class of problems for which many asymptotic methods had to be employed previously.




Advances in Turbulence XI


Book Description

This volume comprises the communications presented at the ETC 11, the EUROMECH European Turbulence conference held in 2007 in Porto. The scientific committee has chosen the contributions out of the following topics: Acoustics of turbulent flows; Atmospheric turbulence; Control of turbulent flows; Geophysical and astrophysical turbulence; Instability and transition; Intermittency and scaling; Large eddy simulation and related techniques; MHD turbulence; Reacting and compressible turbulence; Transport and mixing; Turbulence in multiphase and non-Newtonian flows; Vortex dynamics and structure formation; Wall bounded flows.




Analysis of Turbulent Flows with Computer Programs


Book Description

Analysis of Turbulent Flows is written by one of the most prolific authors in the field of CFD. Professor of Aerodynamics at SUPAERO and Director of DMAE at ONERA, Professor Tuncer Cebeci calls on both his academic and industrial experience when presenting this work. Each chapter has been specifically constructed to provide a comprehensive overview of turbulent flow and its measurement. Analysis of Turbulent Flows serves as an advanced textbook for PhD candidates working in the field of CFD and is essential reading for researchers, practitioners in industry and MSc and MEng students. The field of CFD is strongly represented by the following corporate organizations: Boeing, Airbus, Thales, United Technologies and General Electric. Government bodies and academic institutions also have a strong interest in this exciting field. - An overview of the development and application of computational fluid dynamics (CFD), with real applications to industry - Contains a unique section on short-cut methods – simple approaches to practical engineering problems







Wavelet Transforms and Their Applications


Book Description

This textbook is an introduction to wavelet transforms and accessible to a larger audience with diverse backgrounds and interests in mathematics, science, and engineering. Emphasis is placed on the logical development of fundamental ideas and systematic treatment of wavelet analysis and its applications to a wide variety of problems as encountered in various interdisciplinary areas. Topics and Features: * This second edition heavily reworks the chapters on Extensions of Multiresolution Analysis and Newlands’s Harmonic Wavelets and introduces a new chapter containing new applications of wavelet transforms * Uses knowledge of Fourier transforms, some elementary ideas of Hilbert spaces, and orthonormal systems to develop the theory and applications of wavelet analysis * Offers detailed and clear explanations of every concept and method, accompanied by carefully selected worked examples, with special emphasis given to those topics in which students typically experience difficulty * Includes carefully chosen end-of-chapter exercises directly associated with applications or formulated in terms of the mathematical, physical, and engineering context and provides answers to selected exercises for additional help Mathematicians, physicists, computer engineers, and electrical and mechanical engineers will find Wavelet Transforms and Their Applications an exceptionally complete and accessible text and reference. It is also suitable as a self-study or reference guide for practitioners and professionals.




Winning in Turbulence


Book Description

The current downturn may prove more brutal than most previous recessions. It's already hammering companies in markets around the globe. It will test businesses to their fullest-many won't survive. But downturns present strategic opportunities, too. In fact, many more companies achieve dramatic gains during recessions than in normal times. How to ensure your company emerges successful? In Winning in Turbulence, a new volume in the Memo to the CEO series, Bain & Company downturn strategist Darrell Rigby provides the playbook. He presents a powerful framework and diagnostic tool (available in the book and online) for assessing three dimensions of your situation: Your industry's sensitivity: How hard is it hit by this downturn? Your company's strategic position: Are you an industry leader or follower? Your firm's financial position, including cash reserves. The author then explains how to craft an action plan tailored to the situation you've diagnosed, providing tools for: Cutting costs intelligently-sustaining your margins and brand Boosting revenue by refocusing your sales force on the right customers Channeling resources into your core businesses Preparing for bold moves, such as game-changing acquisitions Timely and practical, this book positions you to survive a downturn and emerge stronger once the recovery begins.




Statistical Theory and Modeling for Turbulent Flows


Book Description

Providing a comprehensive grounding in the subject of turbulence, Statistical Theory and Modeling for Turbulent Flows develops both the physical insight and the mathematical framework needed to understand turbulent flow. Its scope enables the reader to become a knowledgeable user of turbulence models; it develops analytical tools for developers of predictive tools. Thoroughly revised and updated, this second edition includes a new fourth section covering DNS (direct numerical simulation), LES (large eddy simulation), DES (detached eddy simulation) and numerical aspects of eddy resolving simulation. In addition to its role as a guide for students, Statistical Theory and Modeling for Turbulent Flows also is a valuable reference for practicing engineers and scientists in computational and experimental fluid dynamics, who would like to broaden their understanding of fundamental issues in turbulence and how they relate to turbulence model implementation. Provides an excellent foundation to the fundamental theoretical concepts in turbulence. Features new and heavily revised material, including an entire new section on eddy resolving simulation. Includes new material on modeling laminar to turbulent transition. Written for students and practitioners in aeronautical and mechanical engineering, applied mathematics and the physical sciences. Accompanied by a website housing solutions to the problems within the book.




Progress in Turbulence V


Book Description

This volume collects the edited and reviewed contributions presented in the 5th iTi Conference in Bertinoro covering fundamental aspects in turbulent flows. In the spirit of the iTi initiative, the volume is produced after the conference so that the authors had the possibility to incorporate comments and discussions raised during the meeting. Turbulence presents a large number of aspects and problems, which are still unsolved and which challenge research communities in engineering and physical sciences both in basic and applied research. The book presents recent advances in theory related to new statistical approaches, effect of non-linearities and presence of symmetries. This edition presents new contributions related to the physics and control of laminar-turbulent transition in wall-bounded flows, which may have a significant impact on drag reduction applications. Turbulent boundary layers, at increasing Reynolds number, are the main subject of both computational and experimental long research programs aimed at improving our knowledge on scaling, energy distribution at different scales, structure eduction, roughness effects to name only a few. Like previous editions several numerical and experimental analysis of complex flows, mostly related to applications, are presented. The structure of the present book is as such that contributions have been bundled according to covering topics i.e. I Theory, II Stability, III Wall bounded flows, IV, Complex flows, V Acoustic, VI Numerical methods. The volume is dedicated to the memory of Prof. Rudolf Friedrich who prematurely died in Münster/Germany on the 16th of August 2012. In his honor the conference has started with a special session dedicated to his work.