Complex wave dynamics on thin films
著者
書誌事項
Complex wave dynamics on thin films
（Studies in interface science, v. 14）
Elsevier Science B. V., 2002
1st ed.
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
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.
目次
Introduction and history. Formulation and linear Orr-Sommerfeld theory. Hierarchy of model equations. Experiments and numerical simulation. Periodic and solitary wave families. Floquet theory and selection of periodic waves. Spectral theory for gKS solitary pulses. Spectral theory and drainage dynamics of realistic pulses. Pulse interaction theory. Coarsening theory for naturally excited waves. Transverse instability. Hydraulic shocks. Drop formation on a coated vertical fiber.
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