Download or read book Drying of Complex Fluids Near the Contact Line written by Ching Hsueh and published by . This book was released on 2012 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the pattern formation induced by drying colloidal suspensions and polymer solutions in a vertical Hele-Shaw cell immersed in a reservoir (dip-coating like set-up). The contact line speed is controlled by pumping the solution from the reservoir. At low capillary number stick-slip motion of the receding contact line is observed for silica suspensions. Periodic strips spontaneously form during drying. We study the wavelength and deposit morphology as a function of the mean receding velocity. The pinning force variation is deduced from the contact line displacement. The effect of the solution pH and size of the particles on the deposit morphology, wavelength, and pinning force is analyzed. Results are compared to some models of the literature. In the same conditions dried polymer films are almost flat, but stick-slip motion is found at higher temperature. In the second part of this manuscript, a 2D model has been developed to describe the flow inside the Hele-Shaw cell induced by the imposed velocity and non-uniform evaporation flux. The model is governed by Stokes equation and Fick's law. A small truncation at the meniscus tip is applied in order to avoid the singularity due to the divergence of the evaporation flux. Lubrication approximation as well as global mass balances are used to express the boundary conditions. Deposit thickness and the flow properties are studied as a function of the process parameters (imposed velocity, evaporation rate, and solute concentration) and the system properties (kinetic viscosity, diffusion coefficient). Finally, we compare our simulation results with a simple model. This model is a first step to study mass transfer in a meniscus.
Download or read book Drying of Complex Fluid Drops written by David Brutin and published by Royal Society of Chemistry. This book was released on 2022-06-01 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coffee rings, paint drying, blood splatter are all examples of complex fluids drying. Understanding the phenomena of complex fluid drops with respect to drying is important for technology and a lot of research in academia and industry is poured into this topic. This book addresses this industrially important area and provides a thorough grounding to the field. Addressing the fundamental underpinnings of wetting, spreading and drying, the book then takes the reader through key applications grouped into themes, including colloidal droplets (used in printing) and biological (e.g. bloodstain analysis for forensics). With a section on modelling and simulation to balance experiment with computational tools, this book will appeal to anyone working in complex fluids across classical fluid mechanics, soft matter, and chemical, biological and mechanical engineering
Download or read book Drying of Complex Fluid Drops written by David Brutin and published by Royal Society of Chemistry. This book was released on 2022-06-01 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the phenomena of complex fluid drops with respect to drying is important for technology and a lot of research in academia and industry is poured into this topic. This book addresses this industrially important area and provides a thorough grounding to the field.
Download or read book Fundamentals of Inkjet Printing written by Stephen D. Hoath and published by John Wiley & Sons. This book was released on 2016-03-14 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: From droplet formation to final applications, this practical book presents the subject in a comprehensive and clear form, using only content derived from the latest published results. Starting at the very beginning, the topic of fluid mechanics is explained, allowing for a suitable regime for printing inks to subsequently be selected. There then follows a discussion on different print-head types and how to form droplets, covering the behavior of droplets in flight and upon impact with the substrate, as well as the droplet's wetting and drying behavior at the substrate. Commonly observed effects, such as the coffee ring effect, are included as well as printing in the third dimension. The book concludes with a look at what the future holds. As a unique feature, worked examples both at the practical and simulation level, as well as case studies are included. As a result, students and engineers in R&D will come to fully understand the complete process of inkjet printing.
Download or read book Droplet Wetting and Evaporation written by David Brutin and published by Academic Press. This book was released on 2015-05-11 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droplet Wetting and Evaporation provides engineers, students, and researchers with the first comprehensive guide to the theory and applications of droplet wetting and evaporation. Beginning with a relevant theoretical background, the book moves on to consider specific aspects, including heat transfer, flow instabilities, and the drying of complex fluid droplets. Each chapter covers the principles of the subject, addressing corresponding practical issues and problems. The text is ideal for a broad range of domains, from aerospace and materials, to biomedical applications, comprehensively relaying the challenges and approaches from the different communities leading the way in droplet research and development. Provides a broad, cross-subject coverage of theory and application that is ideal for engineers, students and researchers who need to follow all major developments in this interdisciplinary field Includes comprehensive discussions of heat transfer, flow instabilities, and the drying of complex fluid droplets Begins with an accessible summary of fundamental theory before moving on to specific areas such as heat transfer, flow instabilities, and the drying of complex fluid droplets
Download or read book Fluid Structure Interactions in Low Reynolds Number Flows written by Camille Duprat and published by Royal Society of Chemistry. This book was released on 2016 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approachable introduction to low Reynolds number flows and elasticity for those new to the area across engineering, physics, chemistry and biology.
Download or read book Instabilities and Nonequilibrium Structures VII VIII written by Orazio Descalzi and published by Springer Science & Business Media. This book was released on 2004-03-31 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this book correspond to Sessions VII and VIII of the International Workshop on Instabilities and Nonequilibrium Structures which took place in Vina del Mar, Chile, in December 1997 and December 1999, respectively. Part I is devoted to self-contained courses. Three courses are related to new developments in Bose-Einstein condensation: the first one by Robert Graham studies the classical dynamics of excitations of Bose condensates in anisotropic traps, the second by Marc Etienne Brachet refers to the bifurcations arising in attractive Bose-Einstein condensates and superfluid helium and the third course by Andre Verbeure is a pedagogical introduction to the subject with special emphasis on first principles and rigorous results. Part I is completed by two courses given by Michel Moreau: the first one on diffusion limited reactions of particles with fluctuating activity and the second on the phase boundary dynamics in a one dimensional nonequilibrium lattice gas. Part II includes a selection of invited seminars at both Workshops.
Download or read book Traffic and Granular Flow 07 written by Cécile Appert-Rolland and published by Springer Science & Business Media. This book was released on 2009-05-19 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers several research fields dealing with transport. This work covers three main topics including road traffic, granular matter, and biological transport. It considers different points of views including modelling, simulations, experiments, and phenomenological observations.
Download or read book Dynamics Of Complex Fluids Proceedings Of The Second Royal Society unilever Indo uk Forum In Materials Science And Engineering written by M J Adams and published by World Scientific. This book was released on 1998-08-08 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume records the presentations and discussions at the Second Royal Society-Unilever Indo-UK Forum on 'Dynamics of Complex Fluids' which was the culmination of the six-month programme on this topic organised at the Issac Newton Institute for Mathematical Sciences, Cambridge University.The authors of this important volume present an up-to-date, wide-ranging view on developments in the analysis of complex fluid behaviour. Emphasis is placed upon the relation between small-scale structure and large-scale response: this brings together the approaches of molecular physics and continuum mechanics.Experiments, constitutive models and computer simulations are combined to yield new insights into the flow behaviour of polymer melts and solutions, colloidal and neutral particle suspensions, and pastes and soils.
Download or read book Desiccation Cracks and their Patterns written by Lucas Goehring and published by John Wiley & Sons. This book was released on 2015-06-08 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together basic ideas, classical theories, recent experimental and theoretical aspects, this book explains desiccation cracks from simple, easily-comprehensible cases to more complex, applied situations. The ideal team of authors, combining experimental and theoretical backgrounds, and with experience in both physical and earth sciences, discuss how the study of cracks can lead to the design of crack-resistant materials, as well as how cracks can be grown to generate patterned surfaces at the nano- and micro-scales. Important research and recent developments on tailoring desiccation cracks by different methods are covered, supported by straightforward, yet deep theoretical models. Intended for a broad readership spanning physics, materials science, and engineering to the geosciences, the book also includes additional reading especially for students engaged in pattern formation research.
Download or read book Near Field Characterization of Micro Nano Scaled Fluid Flows written by Kenneth D Kihm and published by Springer Science & Business Media. This book was released on 2011-05-05 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The near-field region within an order of 100 nm from the solid interface is an exciting and crucial arena where many important multiscale transport phenomena are physically characterized, such as flow mixing and drag, heat and mass transfer, near-wall behavior of nanoparticles, binding of bio-molecules, crystallization, surface deposition processes, just naming a few. This monograph presents a number of label-free experimental techniques developed and tested for near-field fluid flow characterization. Namely, these include Total Internal Reflection Microscopy (TIRM), Optical Serial Sectioning Microscopy (OSSM), Surface Plasmon Resonance Microscopy (SPRM), Interference Reflection Contrast Microscopy (IRCM), Thermal Near-Field Anemometry, Scanning Thermal Microscopy (STM), and Micro-Cantilever Near-Field Thermometry. Presentation on each of these is laid out for the working principle, how to implement the system, and its example applications, to promote the readers understanding and knowledge of the specific technique that can be applied for their own research interests.
Download or read book Assessment of Directions in Microgravity and Physical Sciences Research at NASA written by National Research Council and published by National Academies Press. This book was released on 2003-07-11 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: For thirty years the NASA microgravity program has used space as a tool to study fundamental flow phenomena that are important to fields ranging from combustion science to biotechnology. This book assesses the past impact and current status of microgravity research programs in combustion, fluid dynamics, fundamental physics, and materials science and gives recommendations for promising topics of future research in each discipline. Guidance is given for setting priorities across disciplines by assessing each recommended topic in terms of the probability of its success and the magnitude of its potential impact on scientific knowledge and understanding; terrestrial applications and industry technology needs; and NASA technology needs. At NASA's request, the book also contains an examination of emerging research fields such as nanotechnology and biophysics, and makes recommendations regarding topics that might be suitable for integration into NASA's microgravity program.
Download or read book Multiphase Microfluidics The Diffuse Interface Model written by Roberto Mauri and published by Springer Science & Business Media. This book was released on 2012-05-31 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diffuse interface (D.I.) model for muliphase flows.- Phase separation of viscous ternary liquid mixtures.- Dewetting and decomposing films of simple and complex liquids.- Phase-field models. Multiphase flows are typically described assuming that the different phases are separated by a sharp interface, with appropriate boundary conditions. This approach breaks down whenever the lengthscale of the phenomenon that is being studied is comparable with the real interface thickness, as it happens, for example, in the coalescence and breakup of bubbles and drops, the wetting and dewetting of solid surfaces and, in general, im micro-devices. The diffuse interface model resolves these problems by assuming that all quantities can vary continuously, so that interfaces have a non-zero thickness, i.e. they are "diffuse". The contributions in this book review the theory and describe some relevant applications of the diffuse interface model for one-component, two-phase fluids and for liquid binary mixtures, to model multiphase flows in confined geometries.
Download or read book Particles at Fluid Interfaces written by Erica Wanless and published by Frontiers Media SA. This book was released on 2019-05-09 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particles at Fluid Interfaces encompasses the processes and formulations that involve the stabilisation of fluid interfaces by adsorbed particles. The prevalence of these multiphase materials underpins their use in a broad range of industries from personal care and food technology to oil and mineral processing. The stabilisation conferred by the adsorbed particles can be transient as found in froth flotation or long-lived as occurs within Pickering Emulsions. The particles can range in size from nanoparticles to millimetre-sized particles, and cover a spectrum from collapsed proteins, polymeric colloids of controlled size and shape to high dispersity mineral particles.
Download or read book The Surface Wettability Effect on Phase Change written by Marco Marengo and published by Springer Nature. This book was released on 2021-10-30 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Surface Wettability Effect on Phase Change collects high level contributions from internationally recognised scientists in the field. It thoroughly explores surface wettability, with topics spanning from the physics of phase change, physics of nucleation, mesoscale modeling, analysis of phenomena such drop evaporation, boiling, local heat flux at triple line, Leidenfrost, dropwise condensation, heat transfer enhancement, freezing, icing. All the topics are treated by discussing experimental results, mathematical modeling and numerical simulations. In particular, the numerical methods look at direct numerical simulations in the framework of VOF simulations, phase-field simulations and molecular dynamics. An introduction to equilibrium and non-equilibrium thermodynamics of phase change, wetting phenomena, liquid interfaces, numerical simulation of wetting phenomena and phase change is offered for readers who are less familiar in the field. This book will be of interest to researchers, academics, engineers, and postgraduate students working in the area of thermofluids, thermal management, and surface technology.
Download or read book Slow Dynamics in Complex Systems written by American Institute of Physics and published by American Institute of Physics. This book was released on 2004-06-02 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives up-to-date information on the liquid-glass transition in various disciplines, such as physics, chemistry, biology, engineering, polymer science, and computer science. The book contains review articles by leading scientists and contributed papers by authors in the forefront of research. The systems studied covered almost all states of matter including solids, liquids, complex solutions, polymers, and suspensions. Significant progress was made on a variety of topics. Among these were experimental and theoretical studies of colloidal systems; experiments on glass to glass transitions in micellar systems; theoretical studies of polyelectrolytes and polymer melts and networks; theoretical and computer studies of hydrodynamics in suspensions and Rayleigh-Taylor and Rayleigh-Couette instabilities; theoretical and experimental studies of the glass transition; computer simulations of the glass transition in thin films; vibrational motions in glass forming liquids and glasses; the effects of shear on supercooled liquids; engineering and experimental studies of metallic glasses; mode-coupling studies of complex glass formation; and Lorentz gas studies of the translational and rotational motion of a rigid rod.
Download or read book Engineering and Food written by W. E. Spiess and published by Springer. This book was released on 1990-04-24 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Proceedings of the Fifth International Congress on Engineering and Food held between 28 May and 3 June 1989 in Cologne, Federal Republic of Germany."
