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Author: Hen-hong Chang Publisher: Elsevier ISBN: 0080529534 Category : Technology & Engineering Languages : en Pages : 413
Book Description
Wave evolution on a falling film is a classical hydrodynamic instability whose rich wave dynamics have been carefully recorded in the last fifty years. Such waves are known to profoundly affect the mass and heat transfer of multi-phase industrial units.This book describes the collective effort of both authors and their students in constructing a comprehensive theory to describe the complex wave evolution from nearly harmonic waves at the inlet to complex spatio-temporal patterns involving solitary waves downstream. The mathematical theory represents a significant breakthrough from classical linear stability theories, which can only describe the inlet harmonic waves and also extends classical soliton theory for integrable systems to real solitrary wave dynamics with dissipation. One unique feature of falling-film solitary wave dynamics, which drives much of the spatio-temporal wave evolution, is the irreversible coalescence of such localized wave structures. It represents the first full description of a hydrodynamic instability from inception to developed chaos. This approach should prove useful for other complex hydrodynamic instabilities and would allow industrial engineers to better design their multi-phase apparati by exploiting the deciphered wave dynamics. This publication gives a comprehensive review of all experimental records and existing theories and significantly advances state of the art on the subject and are complimented by complex and attractive graphics from computational fluid mechanics.
Author: Hen-hong Chang Publisher: Elsevier ISBN: 0080529534 Category : Technology & Engineering Languages : en Pages : 413
Book Description
Wave evolution on a falling film is a classical hydrodynamic instability whose rich wave dynamics have been carefully recorded in the last fifty years. Such waves are known to profoundly affect the mass and heat transfer of multi-phase industrial units.This book describes the collective effort of both authors and their students in constructing a comprehensive theory to describe the complex wave evolution from nearly harmonic waves at the inlet to complex spatio-temporal patterns involving solitary waves downstream. The mathematical theory represents a significant breakthrough from classical linear stability theories, which can only describe the inlet harmonic waves and also extends classical soliton theory for integrable systems to real solitrary wave dynamics with dissipation. One unique feature of falling-film solitary wave dynamics, which drives much of the spatio-temporal wave evolution, is the irreversible coalescence of such localized wave structures. It represents the first full description of a hydrodynamic instability from inception to developed chaos. This approach should prove useful for other complex hydrodynamic instabilities and would allow industrial engineers to better design their multi-phase apparati by exploiting the deciphered wave dynamics. This publication gives a comprehensive review of all experimental records and existing theories and significantly advances state of the art on the subject and are complimented by complex and attractive graphics from computational fluid mechanics.
Author: Uma Balakrishnan Publisher: LAP Lambert Academic Publishing ISBN: 9783843390149 Category : Languages : en Pages : 344
Book Description
The work considers some free surface problems and attempts to understand the intrinsic complex behavior of waves in thin films down an inclined plane or vertical wall. The viscous Newtonian thin film or non-Newtonian inelastic power-law film or viscoelastic film down an inclined plane or vertical wall is considered and dynamics of waves and stability characteristics of thin film flow systems are analyzed. The investigations are based on the derivation of an amplitude equation of Landau-Stuart type for the evolution of waves for isothermal or non-isothermal films valid in the neighborhood of a neutral curve or on the use of modern bifurcation techniques of dynamical systems theory together with direct numerical integration to construct weakly nonlinear permanent waves on Newtonian / viscoelastic films for moderate to high Reynolds numbers and small to moderate surface tension effects. The work also considers the development of a flow of a viscous conducting fluid over a rough spinning disk in the presence of a transverse magnetic field with or without induced air shear effects. The entire work is divided into seven chapters.
Author: S. Kalliadasis Publisher: Springer Science & Business Media ISBN: 1848823673 Category : Mathematics Languages : en Pages : 446
Book Description
Falling Liquid Films gives a detailed review of state-of-the-art theoretical, analytical and numerical methodologies, for the analysis of dissipative wave dynamics and pattern formation on the surface of a film falling down a planar inclined substrate. This prototype is an open-flow hydrodynamic instability, that represents an excellent paradigm for the study of complexity in active nonlinear media with energy supply, dissipation and dispersion. It will also be of use for a more general understanding of specific events characterizing the transition to spatio-temporal chaos and weak/dissipative turbulence. Particular emphasis is given to low-dimensional approximations for such flows through a hierarchy of modeling approaches, including equations of the boundary-layer type, averaged formulations based on weighted residuals approaches and long-wave expansions. Whenever possible the link between theory and experiment is illustrated, and, as a further bridge between the two, the development of order-of-magnitude estimates and scaling arguments is used to facilitate the understanding of basic, underlying physics. This monograph will appeal to advanced graduate students in applied mathematics, science or engineering undertaking research on interfacial fluid mechanics or studying fluid mechanics as part of their program. It will also be of use to researchers working on both applied, fundamental theoretical and experimental aspects of thin film flows, as well as engineers and technologists dealing with processes involving isothermal or heated films. This monograph is largely self-contained and no background on interfacial fluid mechanics is assumed.
Author: Joseph M. Powers Publisher: Cambridge University Press ISBN: 1009028081 Category : Technology & Engineering Languages : en Pages : 722
Book Description
Providing a modern approach to classical fluid mechanics, this textbook presents an accessible and rigorous introduction to the field, with a strong emphasis on both mathematical exposition and physical problems. It includes a consistent treatment of a broad range of fluid mechanics topics, including governing equations, vorticity, potential flow, compressible flow, viscous flow, instability, and turbulence. It has enhanced coverage of geometry, coordinate transformations, kinematics, thermodynamics, heat transfer, and nonlinear dynamics. To round out student understanding, a robust emphasis on theoretical fundamentals and underlying mathematical details is provided, enabling students to gain confidence and develop a solid framework for further study. Included also are 180 end-of-chapter problems, with full solutions and sample course syllabi available for instructors. With sufficient coverage for a one- or two-semester sequence, this textbook provides an ideal flexible teaching pathway for graduate students in aerospace, mechanical, chemical, and civil engineering, and applied mathematics.
Author: S. Kalliadasis Publisher: Springer Science & Business Media ISBN: 3211698086 Category : Technology & Engineering Languages : en Pages : 211
Book Description
This book provides a detailed overview and comprehensive analysis of the main theoretical and experimental advances on free surface thin film and jet flows of soft matter. The book outlines the basic equations and boundary conditions and the derivation of low-dimensional models for the evolution of the free surface. At the experimental front, a variety of recent experimental developments is outlined and the link between theory and experiments is illustrated.
Author: Henning Raach Publisher: Walter de Gruyter GmbH & Co KG ISBN: 3110592339 Category : Science Languages : en Pages : 197
Book Description
This book covers the simulation of evaporating saltwater falling films with and without turbulence wires. The methods presented within can be applied to a variety of applications including the food and pharmaceutical industry, as well as in nuclear technology. This topic is ideal for researchers in chemical engineering.
Author: Joseph D'Arrigo Publisher: Elsevier ISBN: 0444538453 Category : Technology & Engineering Languages : en Pages : 436
Book Description
This title is a greatly expanded and updated second edition of the original volume published by Elsevier in 1986. New material has been integrated with the original content in an organized and comprehensive manner. Five new chapters have been included, which review over one and a half decades of research into lipid-coated microbubbles (LCM) and their medical applications. The new chapters contain much experimental data, which is examined in detail, along with relevant current literature. This current edition builds on the original work in effectively filling the gap in the market for a comprehensive account of the surfactant stabilization of coated microbubbles. - Presents updated results from extensive multidisciplinary research on coated microbubbles - Greatly expanded and updated 2nd edition, with five new chapters - Fills the gap for a comprehensive and up-to-date account of subject matter
Author: Ignac Capek Publisher: Elsevier ISBN: 0080479596 Category : Technology & Engineering Languages : en Pages : 313
Book Description
Nanocomposite Structures and Dispersions summarizes the fundamentals and mechanistic approaches in preparation and characterization of colloidal nanoparticles and dispersions, providing the readers a systematic and coherent picture of the field. The book serves as an introduction to the interesting field of nanoscience based on polymer and metal colloidal nanoparticles, and also presents the basic knowledge of polymer colloids preparation. It places a special emphasis on polymer, inorganic and metal nanomaterials classified as nanoparticles, nanocrystals, nanorods, nanotubes, nanobelts, etc. deals with the chemistry of the reaction approaches by which polymer and metal particles are synthesized. The book explores both organic (synthetic and natural) and inorganic materials, as well as their hybrids. It describes in detail terms, definitions, theories, experiments, and techniques dealing with synthesis of polymer and metal particles. It also discusses a variety of synthetic approaches including emulsion, miniemulsion and microemulsion approaches, homogeneous and heterogeneous nucleation approaches under mild and high temperatures. There is also a chapter on modification and passivation of colloidal particles. This book would be of interest to chemical engineers, polymer chemists, organic chemists, colloid chemists, materials scientists and nanotechnologists. Although the text discusses nanoscience and nanotechnology from the viewpoint of a chemist, it would also appeal to those just entering the field and experts seeking information in other sub-fields. - Serves as a general introduction for those just entering the field and experts seeking information in other sub-fields - Variety of synthetic approaches is described including emulsion, miniemulsion and microemulsion approaches, hogeneous and heterogeneous nucleation approaches under mild and high temperatures - Focused on both the organic (synthetic and natural) and inorganic materials, and their hybrids
Author: Publisher: Elsevier ISBN: 0080456111 Category : Science Languages : en Pages : 342
Book Description
Surface activity is present in living systems; for example in body fluid or cell soup and molecules of surface-active nature are crucial to living matter and its organization. Surface Activity in Drug Action proposes "a liquid membrane hypothesis of drug action" for surface-active drugs. Chapters 1-7 contains an account of the hypothesis and chapter 8 contains a general account of the application of surface activity in therapeutics. The methodology and presentation of the information makes Surface Activity in Drug Action valuable reading for students and researchers interested in surface activity.* Is clearly written * Includes contributions from prominent names in the field, such as Bhise and Subrahmanyam* Contains a general account of the application of surface activity in therapeutics
Author: Hen-hong Chang
Author: Hen-hong Chang
Author: Uma Balakrishnan
Author: Sergey Saprykin
Author: S. Kalliadasis
Author: Joseph M. Powers
Author: S. Kalliadasis
Author: Henning Raach
Author: Joseph D'Arrigo
Author: Ignac Capek
Author: