Computational Modeling of Falling Liquid Film Free Surface Evaporation

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (825 download)

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Book Synopsis Computational Modeling of Falling Liquid Film Free Surface Evaporation by : Emmanuel O. Doro

Download or read book Computational Modeling of Falling Liquid Film Free Surface Evaporation written by Emmanuel O. Doro and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational model is developed to investigate fundamental flow physics and transport phenomena of evaporating wavy-laminar falling liquid films of water and black liquor. The computational model is formulated from first principles based on the conservation laws for mass, momentum, energy and species in addition to a phase transport equation for capturing interface deformation and evolution. Free surface waves are generated by monochromatic perturbation of velocity. Continuum models for interfacial evaporation define source terms for liquid vaporization and species enrichment in the conservation laws. A phenomenological crystallization model is derived to account for species depletion due to salt precipitation during black liquor falling film evaporation. Using highly resolved numerical grids on parallel computers, the computational model is implemented to analyze the dynamics of capillary separation eddies in low Reynolds number falling films, investigate the dominant mechanisms of heat transfer enhancement in falling films at moderately high Reynolds numbers and study the fundamental wave structures and wave induced transport in black liquor falling films on flat and cylindrical walls. From simulation results, a theory based on the dynamics of wavefront streamwise pressure gradient is proposed to explain interfacial waves interaction that give rise to multiple backflow regions in films dominated by solitary-capillary waves. The study shows that the mechanism of heat transfer enhancement in moderately high Reynolds number films follows from relatively lower conduction thermal resistance and higher crosswise convective transport at newly formed intermediate wavefronts. Interfacial phenomena such as wave-breaking and vapor entrainment observed in black liquor falling films is explained in terms of a mechanistic theory based on evolution of secondary instabilities and large amplitude wave force imbalances.

Falling Films in Desalination

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110592339
Total Pages : 197 pages
Book Rating : 4.1/5 (15 download)

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Book Synopsis Falling Films in Desalination by : Henning Raach

Download or read book Falling Films in Desalination written by Henning Raach and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-08-05 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the simulation of evaporating saltwater falling films with and without turbulence wires. The methods presented within can be applied to a variety of applications including the food and pharmaceutical industry, as well as in nuclear technology. This topic is ideal for researchers in chemical engineering.

Falling Films in Desalination

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110591855
Total Pages : 323 pages
Book Rating : 4.1/5 (15 download)

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Book Synopsis Falling Films in Desalination by : Henning Raach

Download or read book Falling Films in Desalination written by Henning Raach and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-08-05 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the simulation of evaporating saltwater falling films with and without turbulence wires. The methods presented within can be applied to a variety of applications including the food and pharmaceutical industry, as well as in nuclear technology. This topic is ideal for researchers in chemical engineering.

Falling Liquid Films

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Publisher : Springer Science & Business Media
ISBN 13 : 1848823673
Total Pages : 446 pages
Book Rating : 4.8/5 (488 download)

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Book Synopsis Falling Liquid Films by : S. Kalliadasis

Download or read book Falling Liquid Films written by S. Kalliadasis and published by Springer Science & Business Media. This book was released on 2011-09-24 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Falling Liquid Films gives a detailed review of state-of-the-art theoretical, analytical and numerical methodologies, for the analysis of dissipative wave dynamics and pattern formation on the surface of a film falling down a planar inclined substrate. This prototype is an open-flow hydrodynamic instability, that represents an excellent paradigm for the study of complexity in active nonlinear media with energy supply, dissipation and dispersion. It will also be of use for a more general understanding of specific events characterizing the transition to spatio-temporal chaos and weak/dissipative turbulence. Particular emphasis is given to low-dimensional approximations for such flows through a hierarchy of modeling approaches, including equations of the boundary-layer type, averaged formulations based on weighted residuals approaches and long-wave expansions. Whenever possible the link between theory and experiment is illustrated, and, as a further bridge between the two, the development of order-of-magnitude estimates and scaling arguments is used to facilitate the understanding of basic, underlying physics. This monograph will appeal to advanced graduate students in applied mathematics, science or engineering undertaking research on interfacial fluid mechanics or studying fluid mechanics as part of their program. It will also be of use to researchers working on both applied, fundamental theoretical and experimental aspects of thin film flows, as well as engineers and technologists dealing with processes involving isothermal or heated films. This monograph is largely self-contained and no background on interfacial fluid mechanics is assumed.

Liquid Film Evaporation

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Liquid Film Evaporation by : Amine Belhadj Mohamed

Download or read book Liquid Film Evaporation written by Amine Belhadj Mohamed and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid film evaporation is encountered in various applications including in air humidifiers, in multiple effect distillers in thermal desalination, and in absorption cooling evaporators. It is associated with a falling pure, binary or multicomponent liquid film with associated complex and coupled heat and mass transfer processes. This chapter presents important fundamental aspects inherent to falling film evaporation in several geometrical configurations such as on horizontal tubes and inside inclined or vertical tubes or channels. The first part of the chapter concerns a review of recent works on this topic with emphasis on modeling and simulation features related to falling liquid films with heat and mass transfers. This document aims also to establish a frame for the modeling of the fluid flow with heat and mass transfer in the presence of evaporation. The main governing equations and the appropriate boundary and interfacial conditions corresponding to the fluid flow and associated heat and mass transfer and phase change are systematically presented and discussed for the case of falling film in a vertical channel with the presence of flowing gas mixture. Various simplifications of the governing equations and boundary and interfacial conditions have been proposed and justified. In particular, the formulation with extremely thin liquid film approximation is discussed.

50 Years of CFD in Engineering Sciences

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Publisher : Springer Nature
ISBN 13 : 9811526702
Total Pages : 950 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis 50 Years of CFD in Engineering Sciences by : Akshai Runchal

Download or read book 50 Years of CFD in Engineering Sciences written by Akshai Runchal and published by Springer Nature. This book was released on 2020-03-09 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prof. D. Brian Spalding, working with a small group of students and colleagues at Imperial College, London in the mid-to late-1960’s, single-handedly pioneered the use of Computational Fluid Dynamics (CFD) for engineering practice.​This book brings together advances in computational fluid dynamics in a collection of chapters authored by leading researchers, many of them students or associates of Prof. Spalding. The book intends to capture the key developments in specific fields of activity that have been transformed by application of CFD in the last 50 years. The focus is on review of the impact of CFD on these selected fields and of the novel applications that CFD has made possible. Some of the chapters trace the history of developments in a specific field and the role played by Spalding and his contributions. The volume also includes a biographical summary of Brian Spalding as a person and as a scientist, as well as tributes to Brian Spalding by those whose life was impacted by his innovations. This volume would be of special interest to researchers, practicing engineers, and graduate students in various fields, including aerospace, energy, power and propulsion, transportation, combustion, management of the environment, health and pharmaceutical sciences.

Applied Mechanics Reviews

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Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (26 download)

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Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaporation Technology in Food Processing

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Publisher : Elsevier
ISBN 13 : 0128187654
Total Pages : 401 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Evaporation Technology in Food Processing by : Seid Mahdi Jafari

Download or read book Evaporation Technology in Food Processing written by Seid Mahdi Jafari and published by Elsevier. This book was released on 2024-02-29 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaporation Technology in Food Processing, Volume Nine in the Unit Operations and Processing Equipment in the Food Industry series, explains the processing operations and equipment necessary for recent invented non-thermal processing of different food products, including ozonation, plasma processing, pulsed electric fields, high pressure processing, irradiation and high frequency processing. These processes and unit operations are very important in terms of achieving favorable sensory properties and energy usage. Written by experts in the field of food engineering, this book targets Industrial Engineers working in the field of food processing and within food factories. Divided in four sections, “Evaporation basics," “Different types of evaporators, “Application of evaporators in the food industry and “Design, control and efficiency of evaporators, all chapters emphasize basic texts relating to experimental, theoretical, computational, and/or applications of food engineering principles and the relevant processing equipment to evaporation unit operations. Thoroughly explores the processing operations and equipment necessary for the evaporation of different food products applying steam Brings new opportunities in food processing through innovative evaporation processes Covers the design, control and efficiency of evaporators

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 938 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Paper

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ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Paper by :

Download or read book Paper written by and published by . This book was released on 2001 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Transport Phenomena in Multiphase Systems

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Publisher : Academic Press
ISBN 13 :
Total Pages : 1072 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Transport Phenomena in Multiphase Systems by : Amir Faghri

Download or read book Transport Phenomena in Multiphase Systems written by Amir Faghri and published by Academic Press. This book was released on 2006 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering students in a wide variety of engineering disciplines from mechanical and chemical to biomedical and materials engineering must master the principles of transport phenomena as an essential tool in analyzing and designing any system or systems wherein momentum, heat and mass are transferred. This textbook was developed to address that need, with a clear presentation of the fundamentals, ample problem sets to reinforce that knowledge, and tangible examples of how this knowledge is put to use in engineering design. Professional engineers, too, will find this book invaluable as reference for everything from heat exchanger design to chemical processing system design and more. * Develops an understanding of the thermal and physical behavior of multiphase systems with phase change, including microscale and porosity, for practical applications in heat transfer, bioengineering, materials science, nuclear engineering, environmental engineering, process engineering, biotechnology and nanotechnology * Brings all three forms of phase change, i.e., liquid vapor, solid liquid and solid vapor, into one volume and describes them from one perspective in the context of fundamental treatment * Presents the generalized integral and differential transport phenomena equations for multi-component multiphase systems in local instance as well as averaging formulations. The molecular approach is also discussed with the connection between microscopic and molecular approaches * Presents basic principles of analyzing transport phenomena in multiphase systems with emphasis on melting, solidification, sublimation, vapor deposition, condensation, evaporation, boiling and two-phase flow heat transfer at the micro and macro levels * Solid/liquid/vapor interfacial phenomena, including the concepts of surface tension, wetting phenomena, disjoining pressure, contact angle, thin films and capillary phenomena, including interfacial balances for mass, species, momentum, and energy for multi-component and multiphase interfaces are discussed * Ample examples and end-of-chapter problems, with Solutions Manual and PowerPoint presentation available to the instructors

Technology Innovation in Mechanical Engineering

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Publisher : Springer Nature
ISBN 13 : 9811679096
Total Pages : 1028 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Technology Innovation in Mechanical Engineering by : Prem Kumar Chaurasiya

Download or read book Technology Innovation in Mechanical Engineering written by Prem Kumar Chaurasiya and published by Springer Nature. This book was released on 2022-04-29 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select papers presented at the conference on Technology Innovation in Mechanical Engineering (TIME-2021). The book discusses the latest innovation and advanced research in the diverse field of Mechanical Engineering such as materials, manufacturing processes, evaluation of materials properties for the application in automotive, aerospace, marine, locomotive and energy sectors. The topics covered include advanced metal forming, Energy Efficient systems, Material Characterization, Advanced metal forming, bending, welding & casting techniques, Composite and Polymer Manufacturing, Intermetallics, Future generation materials, Laser Based Manufacturing, High-Energy Beam Processing, Nano materials, Smart Material, Super Alloys, Powder Metallurgy and Ceramic Forming, Aerodynamics, Biological Heat & Mass Transfer, Combustion & Propulsion, Cryogenics, Fire Dynamics, Refrigeration & Air Conditioning, Sensors and Transducers, Turbulent Flows, Reactive Flows, Numerical Heat Transfer, Phase Change Materials, Micro- and Nano-scale Transport, Multi-phase Flows, Nuclear & Space Applications, Flexible Manufacturing Technology & System, Non-Traditional Machining processes, Structural Strength and Robustness, Vibration, Noise Analysis and Control, Tribology. In addition, it discusses industrial applications and cover theoretical and analytical methods, numerical simulations and experimental techniques in the area of Mechanical Engineering. The book will be helpful for academics, including graduate students and researchers, as well as professionals interested in interdisciplinary topics in the areas of materials, manufacturing, and energy sectors.

Sustainable Energy-Water-Environment Nexus in Deserts

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Publisher : Springer Nature
ISBN 13 : 3030760812
Total Pages : 811 pages
Book Rating : 4.0/5 (37 download)

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Book Synopsis Sustainable Energy-Water-Environment Nexus in Deserts by : Essam Heggy

Download or read book Sustainable Energy-Water-Environment Nexus in Deserts written by Essam Heggy and published by Springer Nature. This book was released on 2022-04-25 with total page 811 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses challenges and opportunities in the Energy-Water-Environment (EWE) nexus, with a particular focus on research and technology development requirements in harsh desert climates. Its chapters include selected contributions presented during the 1st international conference on sustainable Energy-Water-Environment nexus in desert climates (ICSEWEN-19) held at the Qatar Environment and Energy Research Institute (QEERI) in Doha, Qatar in December 2019. This volume is comprised of three main chapters, each describing important case studies and progress on water, energy and environmental questions. A fourth chapter on policies and community outreach on these three areas is also included. This compilation aims to bridge the gap between research and industry to address the socioeconomic impacts of the nexus imbalance as perceived by scientists, industrial partners, and policymakers. The content of this book is of particular importance to graduate students, researchers and decision makers interested in understanding water, energy and environmental challenges in arid areas. Re searchers in environmental and civil engineering, chemistry, hydrology and environmental science can also find unique in-situ observations of the current nexus imbalance in deserts climate to validate their investigations. It is also an invaluable guide for industry professionals working in water, energy, environment and food sectors to understand the rapidly evolving landscape of the EWE nexus in arid areas. The analyses, observations and lessons-learned summarized herein are applicable to other arid areas outside North Africa and the Arabian Peninsula as well, such as central Australia, the southwest of the United States and deserts in central Asia.

Proceedings of the 4th International Conference on Nanochannels, Microchannels and Minichannels-- 2006

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Publisher :
ISBN 13 : 9780791847602
Total Pages : 768 pages
Book Rating : 4.8/5 (476 download)

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Book Synopsis Proceedings of the 4th International Conference on Nanochannels, Microchannels and Minichannels-- 2006 by :

Download or read book Proceedings of the 4th International Conference on Nanochannels, Microchannels and Minichannels-- 2006 written by and published by . This book was released on 2006 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computational Fluid Mechanics and Heat Transfer, Second Edition

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Publisher : CRC Press
ISBN 13 : 9781560320463
Total Pages : 828 pages
Book Rating : 4.3/5 (24 download)

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Book Synopsis Computational Fluid Mechanics and Heat Transfer, Second Edition by : Richard H. Pletcher

Download or read book Computational Fluid Mechanics and Heat Transfer, Second Edition written by Richard H. Pletcher and published by CRC Press. This book was released on 1997-04-01 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text provides basic fundamentals of computational theory and computational methods. The book is divided into two parts. The first part covers material fundamental to the understanding and application of finite-difference methods. The second part illustrates the use of such methods in solving different types of complex problems encountered in fluid mechanics and heat transfer. The book is replete with worked examples and problems provided at the end of each chapter.

ANS Proceedings

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ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis ANS Proceedings by :

Download or read book ANS Proceedings written by and published by . This book was released on 1989 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1976 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: