Download or read book Fundamental Studies on Dynamics of Bubbles and Drops Under the Combined Effect of Buoyancy and Thermocapillary written by Ananta Rama Vongole Kaushik and published by . This book was released on 2008 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bubbles and drops are ubiquitous and are of fundamental importance in various industrial and natural processes. The interaction of bubbles and drops with themselves and the background fluid have major impact on the overall behavior of the flow. Hence the need arises to understand their behavior and to manage them in an efficient way. For almost all conventional applications, the gravitational force is predominantly used to control and manipulate their motion. In the cases where the gravitational force becomes weak, particle control by thermocapillary is a promising alternative. Thus, the thermocapillary which relies on manipulation of bubbles and drops caused by the variation of surface tension with temperature is being studied in many physical, chemical, and engineering disciplines. Some of the prominent applications are reduced gravity materials processing, microelectromechanical devices, microfluidics, mixing enhancement in microdrops and transfer of fluid by thermocapillary. Since in reality the force of gravity is inevitable and not entirely absent the main goal here is to understand the behavior of bubbles/drops under the combined effect of gravity and thermocapillary. To this end, the transient behavior of a drop and a collection of them at low Reynolds number and finite Reynolds number was explored. The study of dynamics of isolated bubbles contributes to the understanding of microstructural response of several industrial applications used in the manipulation of particles. Hence, the multi-bubble interactions were analyzed and their pattern formation was studied. Manipulation of tiny amounts of fluids in the form of drops is a central task in many lab-on-chip applications. This necessitates a fundamental understanding of the behavior of compound drops under thermocapillary conditions. Therefore, preliminary studies were done to decipher the dynamics of compound drops. Direct numerical simulations were used to conduct the study.
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 2013-03-09 with total page 527 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 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.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particles Bubbles Drops written by Efstathios Michaelides and published by World Scientific. This book was released on 2006 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of multiphase flows has grown by leaps and bounds in the last thirty years and is now regarded as a major discipline. Engineering applications, products and processes with particles, bubbles and drops have consistently grown in number and importance. An increasing number of conferences, scientific fora and archived journals are dedicated to the dissemination of information on flow, heat and mass transfer of fluids with particles, bubbles and drops. Numerical computations and "thought experiments" have supplemented most physical experiments and a great deal of the product design and testing processes. The literature on computational fluid dynamics with particles, bubbles and drops has grown at an exponential rate, giving rise to new results, theories and better understanding of the transport processes with particles, bubbles and drops. This book captures and summarizes all these advances in a unified, succinct and pedagogical way. Contents: Fundamental Equations and Characteristics of Particles, Bubbles and Drops; Low Reynolds Number Flows; High Reynolds Number Flows; Non-Spherical Particles, Bubbles and Drops; Effects of Rotation, Shear and Boundaries; Effects of Turbulence; Electro-Kinetic, Thermo-Kinetic and Porosity Effects; Effects of Higher Concentration and Collisions; Molecular and Statistical Modeling; Numerical Methods-CFD. Key Features Summarizes the recent important results in the theory of transport processes of fluids with particles, bubbles and drops Presents the results in a unified and succinct way Contains more than 600 references where an interested reader may find details of the results Makes connections from all theories and results to physical and engineering applications Readership: Researchers, practicing engineers and physicists that deal with any aspects of Multiphase Flows. It will also be of interest to academics and researchers in the general fields of mechanical and chemical engineering.
Download or read book Cavitation and Bubble Dynamics written by Christopher Earls Brennen and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Cavitation and Bubble Dynamics deals with the fundamental physical processes of bubble dynamics and the phenomenon of cavitation. It is ideal for graduate students and research engineers and scientists, and a basic knowledge of fluid flow and heat transfer is assumed. The analytical methods presented are developed from basic principles. The book begins with a chapter on nucleation and describes both the theory and observations in flowing and non-flowing systems. Three chapters provide a systematic treatment of the dynamics and growth, collapse, or oscillation of individual bubbles in otherwise quiescent fluids. The following chapters summarize the motion of bubbles in liquids, describe some of the phenomena that occur in homogeneous bubbly flows, with emphasis on cloud cavitation, and summarize some of the experimental observations of cavitating flows. The last chapter provides a review of free streamline methods used to treat separated cavity flows with large attached cavities"--
Download or read book Bubble Dynamics and Interface Phenomena written by John R. Blake and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers presented at the IUTAM Symposium on Bubble Dynamics and Interface Phenomena held at the University of Birmingham from 6-9 September 1993. In many respects it follows on a decade later from the very successful IUTAM Symposium held at CALTECH in June 1981 on the Mechanics and physics of bubbles in liquids which was organised by the late Milton Plesset and Leen van Wijngaarden. The intervening period has seen major development with both experiment and theory. On the experimental side there have been ad vances with very high speed photography and data recording that provide detailed information on fluid and interface motion. Major developments in both computer hardware and software have also led to extensive improvement in our understand ing of bubble and interface dynamics although development is still limited by the sheer complexity of the laminar and turbulent flow regimes often associated with bubbly flows. The symposium attracts wide and extensive interest from engineers, physical, chemical, biological and medical scientists and applied mathematicians. The sci entific committee sought to achieve a balance between theory and experiment over a range of fields in bubble dynamics and interface phenomena. It was our intention to emphasise both the breadth and recent developments in these various fields and to encourage cross-fertilisation of ideas on both experimental techniques and theo retical developments. The programme, and the proceedings recorded herein, cover bubble dynamics, sound and wave propagation, bubbles in flow, sonoluminescence, acoustic cavitation, underwater explosions, bursting bubbles and ESWL.
Download or read book Bubbles Drops and Particles in Non Newtonian Fluids written by Raj P. Chhabra and published by CRC Press. This book was released on 2023-08-31 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of Bubbles, Drops, and Particles in Non-Newtonian Fluids provides comprehensive coverage of the scientific foundations and the latest advances in particle motion in non-Newtonian media. Thoroughly updating and expanding its best-selling predecessor, this edition addresses numerical and experimental developments in non-Newtonian particulate systems. It includes a new chapter on heat transfer in non-Newtonian fluids in the free and mixed convection regimes and thus covers forced convection regimes separately in this edition. Salient Features: Demonstrates how dynamic behavior of single particles can yield useful information for modeling transport processes in complex multiphase flows Addresses heat transfer in Generalized Newtonian Fluid (GNF), visco-plastic and visco-elastic fluids throughout the book and outlines potential strategies for heat transfer enhancement Provides a new detailed section on the effect of confinement on heat transfer from bluff-bodies in non-Newtonian fluids Written in a clear and concise manner, this book remains an excellent handbook and reference. It is essential reading for students and researchers interested in exploring particle motion in different types of non-Newtonian systems encountered in disciplines across engineering and the sciences.
Download or read book The Motion of Bubbles and Drops in Reduced Gravity written by R. Shankar Subramanian and published by Cambridge University Press. This book was released on 2001-04-09 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2001 book provides a thorough review of the motion of bubbles and drops in reduced gravity.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cavitation and Bubble Dynamics written by Christopher Earl Brennen and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph studies the problem of cavitation - the formation of bubbles in a liquid or gas. Cavitation is an interdisciplinary field of fluid dynamics and involves the basic structure of liquids and liquid-gas solutions, and the phase changes between them.
Download or read book Bubbles Drops and Particles written by Roland Clift and published by . This book was released on 1973 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Finite Volume Method written by Radostina Petrova and published by BoD – Books on Demand. This book was released on 2012-03-28 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: We hope that among these chapters you will find a topic which will raise your interest and engage you to further investigate a problem and build on the presented work. This book could serve either as a textbook or as a practical guide. It includes a wide variety of concepts in FVM, result of the efforts of scientists from all over the world. However, just to help you, all book chapters are systemized in three general groups: New techniques and algorithms in FVM; Solution of particular problems through FVM and Application of FVM in medicine and engineering. This book is for everyone who wants to grow, to improve and to investigate.
Download or read book Bubble Wake Dynamics in Liquids and Liquid Solid Suspensions written by Liang-Shih Fan and published by Butterworth-Heinemann. This book was released on 1990-08-21 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to a fundamental understanding of the fluid dynamic nature of a bubble wake, more specifically the primary wake, in liquids and liquid-solid suspensions, an dto the role it plays in various important flow phenomena of multiphase systems. Examples of these phenomena are liquid/solids mixing, bubble coalescence and disintergration, particle entrainment to the freeboard, and bed contraction.
Download or read book Science as a Way of Knowing Human Ecology written by and published by . This book was released on 1985 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Microgravity Research in Support of Technologies for the Human Exploration and Development of Space and Planetary Bodies written by National Research Council and published by National Academies Press. This book was released on 2000-07-03 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The frontier represented by the near solar system confronts humanity with intriguing challenges and opportunities. With the inception of the Human Exploration and Development of Space (HEDS) enterprise in 1995, NASA has acknowledged the opportunities and has accepted the very significant challenges. Microgravity Research in Support of Technologies for the Human Exploration and Development of Space and Planetary Bodies was commissioned by NASA to assist it in coordinating the scientific information relevant to anticipating, identifying, and solving the technical problems that must be addressed throughout the HEDS program over the coming decades. This report assesses scientific and related technological issues facing NASA's Human Exploration and Development of Space endeavor, looking specifically at mission enabling and enhancing technologies which, for development, require an improved understanding of fluid and material behavior in a reduced gravity environment.
