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Drag Reduction of Turbulent Flows by Additives is the first treatment of the subject in book form. The treatment is extremely broad, ranging from physicochemical to hydromechanical aspects. The book shows how fibres, polymer molecules or surfactants at very dilute concentrations can reduce the drag of turbulent flow, leading to energy savings. The dilute solutions are considered in terms of the physical chemistry and rheology, and the properties of turbulent flows are presented in sufficient detail to explain the various interaction mechanisms. Audience: Those active in fundamental research on turbulence and those seeking to apply the effects described. Fluid mechanical engineers, rheologists, those interested in energy saving methods, or in any other application in which the flow rate in turbulent flow should be increased.
The European Conference on Numerical Mathematics and Advanced Applications (ENUMATH), held every 2 years, provides a forum for discussing recent advances in and aspects of numerical mathematics and scientific and industrial applications. The previous ENUMATH meetings took place in Paris (1995), Heidelberg (1997), Jyvaskyla (1999), Ischia (2001), Prague (2003), Santiago de Compostela (2005), Graz (2007), Uppsala (2009), Leicester (2011) and Lausanne (2013). This book presents a selection of invited and contributed lectures from the ENUMATH 2015 conference, which was organised by the Institute of Applied Mathematics (IAM), Middle East Technical University, Ankara, Turkey, from September 14 to 18, 2015. It offers an overview of central recent developments in numerical analysis, computational mathematics, and applications in the form of contributions by leading experts in the field.
Drag Reduction of Complex Mixtures discusses the concept of drag reduction phenomena in complex mixtures in internal and external flows that are shown experimentally by dividing flow patterns into three categories. The book is intended to support further experiments or analysis in drag reduction. As accurately modeling flow behavior with drag reduction is always complex, and since drag reducing additives or solid particles are mixed in fluids, this book covers these complex phenomena in a concise, but comprehensive manner. - Comprehensively addresses a range of drag reduction themes involving different kinds of complex mixtures - Provides data to support further experimentation and computer modeling of drag in complex flow - Includes an introduction to the nature and characteristics of different kinds of complex mixtures
This book addresses the fascinating phenomena associated with nonlinear waves and spatio-temporal patterns. These appear almost everywhere in nature from sand bed forms to brain patterns, and yet their understanding still presents fundamental scientific challenges. The reader will learn here, in particular, about the current state-of-the art and new results in: Nonlinear water waves: resonance, solitons, focusing, Bose-Einstein condensation, as well as and their relevance for the sea environment (sea-wind interaction, sand bed forms, fiber clustering) Pattern formation in non-equilibrium media: soap films, chimera patterns in oscillating media, viscoelastic Couette-Taylor flow, flow in the wake behind a heated cylinder, other pattern formation. The editors and authors dedicate this book to the memory of Alexander Ezersky, Professor of Fluid Mechanics at the University of Caen Normandie (France) from September 2007 to July 2016. Before 2007, he had served as a Senior Scientist at the Institute of Applied Physics of the Russian Academy of Sciences in Nizhny Novgorod (Russia). The chapters have been written by leading scientists in Nonlinear Physics, and the topics chosen so as to cover all the fields to which Prof. Ezersky himself contributed, by means of experimental, theoretical and numerical approaches. The volume will appeal to advanced students and researchers studying nonlinear waves and pattern dynamics, as well as other scientists interested in their applications in various natural media.
This book provides a thorough overview of transport phenomena in complex fluids, based on the latest research results and the newest methods for their analytical prediction and numerical simulation. The respective chapters cover several topics, including: a description of the structural features of the most common complex fluids (polymer and surfactant solutions, colloidal suspensions); an introduction to the most common non-Newtonian constitutive models and their relationship with the fluid microstructure; a detailed overview of the experimental methods used to characterise the thermophysical properties, bulk rheology, and surface properties of complex fluids; a comprehensive introduction to heat, mass, and momentum transport, and to hydrodynamic instabilities in complex fluids; and an introduction to state-of-the-art numerical methods used to simulate complex fluid flows, with a focus on the Smoothed Particle Hydrodynamics (SPH) and the Dissipative Particle Dynamics (DPD) techniques. Subsequent chapters provide in-depth descriptions of phenomena such as thermal convection, elastic turbulence, mixing of complex fluids, thermophoresis, sedimentation, and non-Newtonian drops and sprays. The book addresses research scientists and professionals, engineers, R&D managers and graduate students in the fields of engineering, chemistry, biology, medicine, and the applied and fundamental sciences.
This book is a tribute to Professor Abdelhak Ambari and brings together ten chapters written by colleagues who were fortunate enough to work with him. The contributions presented in this book cover the research themes in which Abdelhak Ambari was interested, and to which he made valuable experimental and theoretical contributions. For example: rheology of complex fluids and polymers; hydrodynamic interactions; flows at low Reynolds numbers; characterization of porous media; hydrodynamic instabilities and solid mechanics; electrochemical metrology. Some Complex Phenomena in Fluid and Solid Mechanics is aimed at a wide community of readers wishing to delve deeper into these scientific themes: since it is oriented toward the world of research, it will be a valuable tool for doctoral students and beyond. The book also provides undergraduate and graduate students with a good introduction to the techniques and approaches developed in fundamental and applied research in the fields of fluid mechanics, solid mechanics and instrumentation.

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Babyak V., Gladilin V., Hladyshev D., Mysak I., Mysak P., Vozniuk L., Василенко О., Чвирова О., Перепелиця О., Танірвердієв А., Сташенко М., Вовк Л., Михайленко Е., Василенко О., Kyshenko V., Smityuh Y., Gorpinchenko A., Krishchenko D., Ladanyuk A., Biletskyi M., Sverstyuk A., Andrushchak I., Matviiv Y., Kosheliuk V., Surinovych O., Кирилюк В.А., Іщенко Д.А., Кожушко Я.М., Клімішен О.О., Панасенко С.В., Кононихін О., Ільге І.Г., Плугіна Т.В., Гурко О.Г., Семенюк В.І., Коломійцев О.В., Жуйков Д.Б., Третяк В.Ф., Корнєв О.В., Торба А., Д’яченко В., Партика С., Пушкар О., Kniaziev V., Shalamov S., Haidukevych S., Semenova N., Kolodiychuk L., Kolesnik V., Sorokina S., Penkina N., Polupan V., Penkin A., Obodovych O., Sydorenko V., Khomenko V., Chernyavsky K., Stepanova O., Бернацький А., Сіора О., Сіора І., Соколовський М., Шамсутдінова Н., Переяславцева О., Orel V., Popadiuk I., Matlai I., Pitsyshyn B., Єфименко О., Розенфельд М., Мусаєв З., Щукін О., Орел О., Котенко К.Е., Пімонов І., Шевченко В., Єфименко А., Жук Д., Сало В., Нечипоренко В., Літовченко П., Раківненко В., Павлов Я., Fialko N., Sherenkovskii J., Meranova N., Aleshko S., Rokitko K., Navrodska R., Shevchuk S., Gnedash G., Канюк Г., Фурсова Т., Мезеря А., Кравець Т., Рябоконь Г., Кузьма В., Заяць М., Фединець В., Васильківський І., Фіалко Н.М., Степанова А.І., Навродська Р.О., Меранова Н.О., Шевчук С.І., Dolia O., Dolia K.

Published: 2022-12-13

Total Pages: 523


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