Download or read book Study of Interfacial Dynamics of Drops in the Presence of Surfactants Or Contaminants written by Hui-Lan Lu and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Gravity Fluid Dynamics and Transport Phenomena written by Robert L. Sani and published by AIAA. This book was released on 1990 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Studies in interfacial dynamics written by Lynn Christine Sparling and published by . This book was released on 1987 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drops and Bubbles written by Taylor G. Wang and published by American Institute of Physics. This book was released on 1989 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interfacial Dynamics of Surfactants Studied Using SHG and Ellipsometry written by J. Hutchison and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Bubbles Drops and Rigid Particles written by Z. Zapryanov and published by Springer Science & Business Media. This book was released on 1998-12-31 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Objective and Scope Bubbles, drops and rigid particles occur everywhere in life, from valuable industrial operations like gas-liquid contracting, fluidized beds and extraction to such vital natural processes as fermentation, evaporation, and sedimentation. As we become increasingly aware of their fundamental role in industrial and biological systems, we are driven to know more about these fascinating particles. It is no surprise, therefore, that their practical and theoretical implications have aroused great interest among the scientific community and have inspired a growing number of studies and publications. Over the past ten years advances in the field of small Reynolds numbers flows and their technological and biological applications have given rise to several definitive monographs and textbooks in the area. In addition, the past three decades have witnessed enormous progress in describing quantitatively the behaviour of these particles. However, to the best of our knowledge, there are still no available books that reflect such achievements in the areas of bubble and drop deformation, hydrodynamic interactions of deformable fluid particles at low and moderate Reynolds numbers and hydrodynamic interactions of particles in oscillatory flows. Indeed, only one more book is dedicated entirely to the behaviour of bubbles, drops and rigid particles ["Bubbles, Drops and Particles" by Clift et al. (1978)] and the authors state its limitations clearly in the preface: "We treat only phenomena in which particle-particle interactions are of negligible importance. Hence, direct application of the book is limited to single-particle systems of dilute suspensions.
Download or read book Interfacial Phenomena written by Clarence A. Miller and published by CRC Press. This book was released on 2007-10-08 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the first edition of Interfacial Phenomena, the interest in interfaces and surfactants has multiplied, along with their applications. Experimental and theoretical advances have provided scientists with greater insight into the structure, properties, and behavior of surfactant and colloid systems. Emphasizing equil
Download or read book Drop Coalescence with Liquid liquid Interfaces in the Presence of Surfactants written by Teng Dong and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Droplets written by Arnold Frohn and published by Springer Science & Business Media. This book was released on 2000-03-27 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the dynamical behaviour of single droplets and regular droplet systems. After a short description of the theoretical background, the different experimental facilities and methods necessary for the investigation of single droplets are described in detail. A summary of important applications is included.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surfactants and Interfacial Phenomena written by Milton J. Rosen and published by John Wiley & Sons. This book was released on 1978 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Study of Surfactant Induced Modification of Droplet Impact Dynamics and Heat Transfer on Hydrophobic and Hydrophilic Surfaces written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational simulations of the spreading, recoil, and rebound/break up of liquid droplet on a horizontal surface were carried out with a finite volume method on a structured grid. A volume-of-fluid (VOF) technique was used to track the deforming liquid-air interface. Simulations were carried out for water and aqueous surfactant solution drops impacting on hydrophilic (glass) and hydrophobic (Teflon) surfaces in the range of Weber numbers between 20 ~ 80. The computational predictions were compared with high-speed visualization of isothermal droplet impact reported by Gatne (2006) to validate the numerical model. The computational scheme based on the VOF method was able to capture the dynamics of this droplet-surface interaction phenomenon observed in the experiments. The numerical treatment included the dynamic surface tension variation for surfactant solutions and different values for the advancing and receding contact angles, which resulted in accurate prediction of the drop impact-spreading-recoil behavior. The computational simulations show that the water droplets spread and then recoil sharply so as to form a vertical column, which breaks up and ejects secondary droplets on a teflon surface but on a glass surface they spread, recoil to a lesser extent and oscillate to rest without rebound. The decrease in surface tension at the liquid-air interface and change in the wetting characteristics of the liquid-solid interface facilitates larger initial spreading and weaker recoil of surfactant solution droplets compared to water drops. The solution of lower molecular weight (higher mobility) surfactant (SDS) showed a higher maximum and final spread with weaker recoil compared to the higher molecular weight (lower mobility) Triton X-100 surfactant. The heat transfer phenomena in droplet impact were studied for both cooling and heating of water and aqueous surfactant solution drops. The results indicated that the wettability of the substrate has the biggest impact on heat transfer. SDS solution droplets resulted in higher heat transfer compared to water droplets due to better wettability and less recoil exhibited by these droplets. Surfactant solutions containing higher concentrations showed higher heat transfer rates as they have lesser recoil which results in more contact surface area with the surface. This study shows that addition of surfactants to water profoundly changes the droplet impact dynamics and concomitant heat transfer and this provides a method to passively modify and control the droplet impact-spreading-recoil processes.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1988 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Technology Behind Nanoemulsions written by Selcan Karakus and published by BoD – Books on Demand. This book was released on 2018-08-22 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers new micro-/nanoemulsion systems in technology that has developed our knowledge of emulsion stability. The emulsion system is a major phenomenon in well-qualified products and has extensive usages in cosmetic industry, food industry, oil recovery, and mineral processes. In this book, readers will find recent studies, applications, and new technological developments on fundamental properties of emulsion systems.
Download or read book Multiphase Particulate Systems in Turbulent Flows written by Wioletta Podgórska and published by CRC Press. This book was released on 2019-09-17 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase Particulate Systems in Turbulent Flows: Fluid-Liquid and Solid-Liquid Dispersions provides methods necessary to analyze complex particulate systems and related phenomena including physical, chemical and mathematical description of fundamental processes influencing crystal size and shape, suspension rheology, interfacial area of drops and bubbles in extractors and bubble columns. Examples of mathematical model formulation for different processes taking place in such systems is shown. Discussing connections between turbulent mixing mechanisms and precipitation, it discusses influence of fine-scale structure of turbulence, including its intermittent character, on breakage of drops, bubbles, cells, plant cell aggregates. An important aspect of the mathematical modeling presented in the book is multi-fractal, taking into account the influence of internal intermittency on different phenomena. Key Features Provides detailed descriptions of dispersion processes in turbulent flow, interactions between dispersed entities, and continuous phase in a single volume Includes simulation models and validation experiments for liquid-liquid, gas-liquid, and solid-liquid dispersions in turbulent flows Helps reader learn formulation of mathematical models of breakage or aggregation processes using multifractal theory Explains how to solve different forms of population balance equations Presents a combination of theoretical and engineering approaches to particulate systems along with discussion of related diversity, with exercises and case studies
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
