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Vapor Liquid Interfaces Bubbles And Droplets
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Book Synopsis Vapor-Liquid Interfaces, Bubbles and Droplets by : Shigeo Fujikawa
Download or read book Vapor-Liquid Interfaces, Bubbles and Droplets written by Shigeo Fujikawa and published by Springer Science & Business Media. This book was released on 2011-04-16 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physically correct boundary conditions on vapor-liquid interfaces are essential in order to make an analysis of flows of a liquid including bubbles or of a gas including droplets. Suitable boundary conditions do not exist at the present time. This book is concerned with the kinetic boundary condition for both the plane and curved vapor-liquid interfaces, and the fluid dynamics boundary condition for Navier-Stokes(fluid dynamics) equations. The kinetic boundary condition is formulated on the basis of molecular dynamics simulations and the fluid dynamics boundary condition is derived by a perturbation analysis of Gaussian-BGK Boltzmann equation applicable to polyatomic gases. The fluid dynamics boundary condition is applied to actual flow problems of bubbles in a liquid and droplets in a gas.
Book Synopsis Bubble and Drop Interfaces by : Reinhard Miller
Download or read book Bubble and Drop Interfaces written by Reinhard Miller and published by CRC Press. This book was released on 2011-06-09 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the most important experimental methods for characterizing liquid interfaces, such as drop profile analysis, bubble pressure and drop volume tensiometry, capillary pressure technique, and oscillating drops and bubbles. It presents practical experimental details as well as the underlying theoretical bases. In addition, the book c
Book Synopsis Shape of Fluid Drops at Fluid-liquid Interfaces and Permeability of Soap Films to Gases by : Henricus Mattheus Princen
Download or read book Shape of Fluid Drops at Fluid-liquid Interfaces and Permeability of Soap Films to Gases written by Henricus Mattheus Princen and published by . This book was released on 1965 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bubbles, Drops, and Particles by : R. Clift
Download or read book Bubbles, Drops, and Particles written by R. Clift and published by Courier Corporation. This book was released on 2013-04-22 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a unified treatment and critical review of the literature related to the fluid dynamics, heat transfer, and mass transfer of single bubbles, drops, and particles. 1978 edition.
Book Synopsis Drops and Bubbles in Interfacial Research by : D. Mobius
Download or read book Drops and Bubbles in Interfacial Research written by D. Mobius and published by Elsevier. This book was released on 1997-12-09 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shape of drops and bubbles is the centre of interest for many interfacial scientists. This book describes the most recent accomplishments to make use of drops and bubbles in fundamental research and application. After a general introduction into the mechanics of liquid menisci, chapters are dedicated to methods based on drops or bubbles. The chapters about the three main drop experiments provide the theoretical basis, a description of experimental set-ups, specific advantages and disadvantages, correction and calibration problems, experimental examples and their interpretation: pendent and sessile drop, drop volume, and spinning drop technique. The chapter about capillary pressure methods summarises different techniques and gives examples of applications, for instance measurements under microgravity. The maximum bubble pressure technique as a particular capillary pressure method is described, with emphasis on the most recent developments which made this technique applicable to extremely short adsorption times, down to the range of milliseconds and less. Problems connected with aerodynamics and hydrodynamics are discussed and used to show the limits of this widely used standard method. The oscillating bubble technique provides information not available by other techniques, for example about the dilational rheology of adsorption layers and relaxation processes at the interface. The description of rising bubbles in surfactant solutions will contain the hydrodynamic basis as well as the theoretical description of the effect of interfacial layers on the movement of bubbles. Besides the theoretical basis experimental data, such as water purification, flotation processes etc. and the relevance for practical applications will be presented. The chapter about lung alveols demonstrates how important bubbles built by biological membranes are in everyday life. The relevance for medicine and biology as well as model studies is discussed. An important example for the application of drops is metallurgy, where the surface tension of metals and alloys is an important parameter for many applications. The chapters on drop shape analysis by using fibre technique and on force measurements between emulsion droplets are of much practical relevance. Lists of references and symbols are given separately at the end of each chapter while a common subject index is given at the end of the book.
Book Synopsis Dynamics and Statics of Liquid-liquid and Gas-liquid Interfaces on Non-uniform Substrates at the Micron and Sub-micron Scales by : Michael M. Norton
Download or read book Dynamics and Statics of Liquid-liquid and Gas-liquid Interfaces on Non-uniform Substrates at the Micron and Sub-micron Scales written by Michael M. Norton and published by . This book was released on 2015 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droplets and bubbles are ubiquitous motifs found in natural and industrial processes. In the absence of significant external forces, liquid-liquid and gas-liquid interfaces form constant mean curvature surfaces that locally minimize the free energy of a given system subject to constraints. However, even for sub-micron bubbles and droplets free of hydrodynamic and hydrostatic stresses (small Capillary, Weber, and Bond numbers), non-equilibrium at the contact line of sessile bubbles and droplets can influence geometries and dynamics. First, the wetting of micron-sized ellipsoidal particles was considered. In the space of axially symmetric interfaces, it is found that multiple constant mean curvature surfaces can satisfy volume and contact angle constraints. Partial encapsulation may be preferred even when the droplet's volume is sufficient to fully engulf the particle. The co-existence of multiple equilibrium states suggests possible hysteretic encapsulation behavior. Secondly, motivated by electron microscopy observations of sub-micron bubbles in a liquid cell, a small mobile and growing bubble confined between two weakly diverging plates is considered theoretically. Scaling analysis suggests that observed bubbles move by continuously wetting and de-wetting the substrates onto which they are adhered. 2D and 3D models are constructed incorporating the Blake-Haynes mechanism, which relates the dynamic contact angle to contact line velocity; partial pinning of the contact line is also considered. In 2D, the system is fully described by a set of non-linear ordinary differential equations that can be readily solved. In 3D, the non-linear PDE system and constraints were solved using a pseudo-spectral method. Both 2D and 3D models predict that in order for a doubly confined bubble to grow in a super-saturated solution it must first increase its curvature; this is in contrast to a free-floating bubble whose curvature always decreases with the addition of mass/volume. Since the surface concentration is proportional to the internal pressure of the bubble, this geometric change temporarily regulates the growth of the bubble. The model predicts growth rates like those observed experimentally that are several orders of magnitude lower than predictions made by classical mass transfer driven growth theory developed by Epstein and Plesset.
Book Synopsis Droplets and Sprays by : Sergei Sazhin
Download or read book Droplets and Sprays written by Sergei Sazhin and published by Springer. This book was released on 2014-05-19 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a clear and systematic description of droplets and spray dynamic models, this book maximises reader insight into the underlying physics of the processes involved, outlines the development of new physical and mathematical models and broadens understanding of interactions between the complex physical processes which take place in sprays. Complementing approaches based on the direct application of computational fluid dynamics (CFD), Droplets and Sprays treats both theoretical and practical aspects of internal combustion engine process such as the direct injection of liquid fuel, subcritical heating and evaporation. Including case studies that illustrate the approaches relevance to automotive applications, it is also anticipated that the described models can find use in other areas such as in medicine and environmental science.
Book Synopsis Drops and Bubbles in Contact with Solid Surfaces by : Michele Ferrari
Download or read book Drops and Bubbles in Contact with Solid Surfaces written by Michele Ferrari and published by CRC Press. This book was released on 2016-04-19 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third volume in a series dedicated to colloids and interfaces, Drops and Bubbles in Contact with Solid Surfaces presents an up-to-date overview of the fundamentals and applications of drops and bubbles and their interaction with solid surfaces. The chapters cover the theoretical and experimental aspects of wetting and wettability, liquid-solid
Book Synopsis Chemistry of Functional Materials Surfaces and Interfaces by : Andrei Honciuc
Download or read book Chemistry of Functional Materials Surfaces and Interfaces written by Andrei Honciuc and published by Elsevier. This book was released on 2021-02-19 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry of Functional Materials Surfaces and Interfaces: Fundamentals and Applications gives a descriptive account of interfacial phenomena step-by-step, from simple to complex, to provide readers with a strong foundation of knowledge in interfacial materials chemistry. Many case studies are provided to give real-world examples of problems and their solutions, allowing readers to make the connection between fundamental understanding and applications. Emerging applications in nanomaterials and nanotechnology are also discussed. Throughout the book, the author explains the common interface and surface equations, models, methods, and applications in the creation of functional materials. The goal of Chemistry of Functional Materials Surfaces and Interfaces is to provide readers with the basic understanding of the common tools of surface and interface chemistry for application in materials science and nanotechnology. This book is suitable for researchers and practitioners in the disciplines of materials science and engineering and surface and interface chemistry. Includes numerous real-world examples and case studies throughout Addresses emerging applications of interfacial materials chemistry in nanomaterials and nanotechnology Provides the foundational concepts of surface and interfacial science with models, equation, and methods
Book Synopsis Liquid Vapor Phase Change Phenomena by : Van P. Carey
Download or read book Liquid Vapor Phase Change Phenomena written by Van P. Carey and published by CRC Press. This book was released on 2018-05-02 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid-Vapor Phase-Change Phenomena presents the basic thermophysics and transport principles that underlie the mechanisms of condensation and vaporization processes. The text has been thoroughly updated to reflect recent innovations in research and to strengthen the fundamental focus of the first edition. Starting with an integrated presentation of the nonequilibrium thermodynamics and interfacial phenomena associated with vaporization and condensation, coverage follows of the heat transfer and fluid flow mechanisms in such processes. The second edition includes significant new material on the nanoscale and microscale thermophysics of boiling and condensation phenomena and the use of advanced computational tools to create new models of phase-change events. The importance of basic phenomena to a wide variety of applications is emphasized and illustrated throughout using examples and problems. Suitable for senior undergraduate and first-year graduate students in mechanical or chemical engineering, the book can also be a helpful reference for practicing engineers or scientists studying the fundamental physics of nucleation, boiling and condensation.
Book Synopsis Computational Techniques for Multiphase Flows by : Guan Heng Yeoh
Download or read book Computational Techniques for Multiphase Flows written by Guan Heng Yeoh and published by Butterworth-Heinemann. This book was released on 2019-02-27 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Techniques for Multiphase Flows, Second Edition, provides the latest research and theories covering the most popular multiphase flows The book begins with an overview of the state-of-the-art techniques for multiple numerical methods in handling multiphase flow, compares them, and finally highlights their strengths and weaknesses. In addition, it covers more straightforward, conventional theories and governing equations in early chapters, moving on to the more modern and complex computational models and tools later in the book. It is therefore accessible to those who may be new to the subject while also featuring topics of interest to the more experienced researcher. Mixed or multiphase flows of solid/liquid or solid/gas are commonly found in many industrial fields, and their behavior is complex and difficult to predict in many cases. The use of computational fluid dynamics (CFD) has emerged as a powerful tool for understanding fluid mechanics in multiphase reactors, which are widely used in the chemical, petroleum, mining, food, automotive, energy, aerospace and pharmaceutical industries. This revised edition is an ideal reference for scientists, MSc students and chemical and mechanical engineers in these areas. Includes updated chapters in addition to a brand-new section on granular flows. Features novel solution methods for multiphase flow, along with recent case studies. Explains how and when to use the featured technique and how to interpret the results and apply them to improving applications.
Download or read book MEMS written by Mohamed Gad-el-Hak and published by CRC Press. This book was released on 2005-11-29 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: As our knowledge of microelectromechanical systems (MEMS) continues to grow, so does The MEMS Handbook. The field has changed so much that this Second Edition is now available in three volumes. Individually, each volume provides focused, authoritative treatment of specific areas of interest. Together, they comprise the most comprehensive collection
Book Synopsis Process Modeling in Pyrometallurgical Engineering by : Henrik Saxén
Download or read book Process Modeling in Pyrometallurgical Engineering written by Henrik Saxén and published by MDPI. This book was released on 2021-09-01 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue presents almost 40 papers on recent research in modeling of pyrometallurgical systems, including physical models, first-principles models, detailed CFD and DEM models as well as statistical models or models based on machine learning. The models cover the whole production chain from raw materials processing through the reduction and conversion unit processes to ladle treatment, casting, and rolling. The papers illustrate how models can be used for shedding light on complex and inaccessible processes characterized by high temperatures and hostile environment, in order to improve process performance, product quality, or yield and to reduce the requirements of virgin raw materials and to suppress harmful emissions.
Book Synopsis Trends in Colloid and Interface Science XIV by : Vitaly Buckin
Download or read book Trends in Colloid and Interface Science XIV written by Vitaly Buckin and published by Springer. This book was released on 2003-07-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 13th Conference of the European Colloid and Interface Society (ECIS 99) was held in September 1999 in Dublin, Ireland. It brought together scientists from academic research and industry within the field of physics and chemistry of colloids and interfaces. The Conference focused on the following topics: - Surfactant colloids; - Polymer colloids and solid particles; - Food colloids; - Soft matter interfaces; - Biosystems; - Rheology; - Experimental methods in colloid and interface science.
Book Synopsis Electrostatic Ignitions of Fires and Explosions by : Thomas H. Pratt
Download or read book Electrostatic Ignitions of Fires and Explosions written by Thomas H. Pratt and published by John Wiley & Sons. This book was released on 2010-09-07 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tom Pratt, a long-time process safety practitioner and lecturer in electrostatic safety, wrote this book to educate industry in the basics of electrostatics. It offers a selected collection of information designed to give readers the tools they need to examine the hazard potential of common industrial processes. Among the topics addressed are separation and accumulation of charge, discharge, minimum ignition energies, discharge energies, electrification in industrial processes, design and operating criteria, measurements, quantification of electrostatic scenarios. A selection of case histories helps illustrate sources of electrostatic ignition of combustibles, and strategies for preventing such incidents.
Book Synopsis Introduction To Interfaces And Colloids, An: The Bridge To Nanoscience (Second Edition) by : John C Berg
Download or read book Introduction To Interfaces And Colloids, An: The Bridge To Nanoscience (Second Edition) written by John C Berg and published by World Scientific. This book was released on 2024-03-19 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook seeks to bring readers with no prior knowledge or experience in interfacial phenomena, colloid science or nanoscience to the point where they can comfortably enter the current scientific and technical literature in the area.Designed as a pedagogical tool, this textbook recognizes the cross-disciplinary nature of the subject. To facilitate learning, the topics are developed from the beginning with ample cross-referencing. The understanding of concepts is enhanced by clear descriptions of experiments and provisions of figures and illustrations.
Book Synopsis Bubble Interactions at Multi-fluid Interfaces by : Travis S. Emery
Download or read book Bubble Interactions at Multi-fluid Interfaces written by Travis S. Emery and published by . This book was released on 2019 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Numerous industrial applications and environmental phenomena are centered around bubble interactions at multi-fluid interfaces. These applications range from metallurgical processing to direct contact evaporation and solid shell formation. Environmental phenomena, such as bubble collisions with the sea surface microlayer and the collision of liquid encapsulated bubbles, were also considered as motivators for this work. Although the associated flow dynamics are complex, they play a vital role in governing the related application outcome, be it in terms of mass or heat transfer efficiency, bubble shell production rate, chemical reaction rate, etc. For this reason, a fundamental understanding of the fluid dynamics involved in the bubble interactions are required to aid in optimal system design. In this work, rigorous experimental work was supplemented by in-depth theoretical analysis to unravel the physics behind these bubble interactions. The focus of the present work is to develop an improved understanding of bubble interactions at liquid-liquid and compound interfaces. Extensive testing has been carried out to identify and classify flow regimes associated with single bubble and bubble stream passage through a liquid-liquid interface. Dimensionless numbers were identified and employed to map these regimes and identify transition criteria. The extension of one identified regime, bubble shell formation, to the field of direct contact evaporation was considered through the development of a numerical model to predict bubble growth in an immiscible liquid droplet. Additional dimensional analysis was carried out for the characterization of bubble collisions at solid and free surfaces. Previously developed numerical models were employed to form the relationship between the appropriate dimensionless groups capable of characterizing such collisions. This relationship was then used to describe a practical method for predicting the radial film size formed during the collision. Finally, three numerical models were developed to predict the bubble motion and the spatiotemporal evolution of the film(s) formed during the collision of a bubble with a liquid-liquid, solid-liquid-liquid, and gas-liquid-liquid interface. These models were validated through additional experiments carried out for this work as well as from data found in literature."--Abstract.
