The Physical And Mathematical Modeling Of Tundish Operations

Author : Julian Szekely,Olusegun J. Ilegbusi
Publisher : Springer Science & Business Media
Page : 121 pages
File Size : 45,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461396260

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The Physical and Mathematical Modeling of Tundish Operations by Julian Szekely,Olusegun J. Ilegbusi Pdf

In recent years it has been recognized that tundishes playa critical role in affecting the quality of the finished steel products. Furthermore, proper tundish design may be even more important in the development of the novel continuous casting pro cesses that are now in varying stages of realizatic)ll. Traditionally, physical modeling has played a key role in tundish design, but the recently evolved computational software packages, the readily accessible computa tional hardware, and, perhaps most important, the growing experience with tackling a broad range of computational fluid flow problems within a metallurgical context have made mathematical modeling an important factor in this field. Our aim in writing this book has been to bring realistic perspectives to tundish design. The main purpose is to provide a good physical understanding of what is happening in tundishes, together with a realistic discussion of topics that are still not quite clear. The process metallurgist active in this field has many tools at his or her disposal, including mathematical modeling, physical modeling, and measure ments on full plant-scale systems. In this monograph we seek to show how these ideas may be combined to provide a good basic understanding and, hence, an attempt at an optimal design.

Author : Julian Szekely,James W. Evans,J. K. Brimacone
Publisher : Wiley-Interscience
Page : 312 pages
File Size : 55,6 Mb
Release : 1988
Category : Science
ISBN : UCAL:$B319661

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The Mathematical and Physical Modeling of Primary Metals Processing Operations by Julian Szekely,James W. Evans,J. K. Brimacone Pdf

A book that provides the mathematical and physical modelling techniques developed for representing metals processing operations such as extraction, refining and solidification. Often referred to as transport phenomena, these techniques are specific to primary metals and used for process optimization and process development now becoming essential as industry moves to on-line computer control of metal processing. This subject matter covers the components of models based on fluid flow; heat and mass transfer; obtaining measurements (data acquisition); optimization of the process; and numerical solutions. Covers the basic principles of numerical solution of differential equations, both finite differences and finite elements. Examples included.

Author : F. Martelli,W. Rodi
Publisher : Elsevier
Page : 1001 pages
File Size : 55,7 Mb
Release : 2014-06-28
Category : Science
ISBN : 9781483298559

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Engineering Turbulence Modelling and Experiments - 2 by F. Martelli,W. Rodi Pdf

Today understanding turbulence is one of the key issues in tackling flow problems in engineering. Powerful computers and numerical methods are now available for solving flow equations, but the simulation of turbulence effects, which are nearly always important in practice, are still at an early stage of development. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulence momentum, heat and mass transfer. The 89 papers, including 5 invited papers, in this volume present and discuss new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. The high standard of the contributions on the developing and testing of turbulent models attests to the world-wide interest this domain is currently attracting from researchers.

Author : Olusegun Johnso Ilegbusi,Manabu Iguchi,Walter E. Wahnsiedler
Publisher : CRC Press
Page : 512 pages
File Size : 54,7 Mb
Release : 1999-07-29
Category : Technology & Engineering
ISBN : 1584880171

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Mathematical and Physical Modeling of Materials Processing Operations by Olusegun Johnso Ilegbusi,Manabu Iguchi,Walter E. Wahnsiedler Pdf

The past few decades have brought significant advances in the computational methods and in the experimental techniques used to study transport phenomena in materials processing operations. However, the advances have been made independently and with competition between the two approaches. Mathematical models are easier and less costly to implement, but experiments are essential for verifying theoretical models. In Mathematical and Physical Modeling of Materials Processing Operations, the authors bridge the gap between mathematical modelers and experimentalists. They combine mathematical and physical modeling principles for materials processing operations simulation and use numerous examples to compare theoretical and experimental results. The modeling of transport processes is multi-disciplinary, involving concepts and principles not all of which can be associated with just one field of study. Therefore, the authors have taken care to ensure that the text is self-sustaining through the variety and breadth of topics covered. Beyond the usual topics associated with transport phenomena, the authors also include detailed discussion of numerical methods and implementation of process models, software and hardware selection and application, and representation of auxiliary relationships, including turbulence modeling, chemical kinetics, magnetohydrodynamics, and multi-phase flow. They also provide several correlations for representing the boundary conditions of fluid flow, heat transfer, and mass transfer phenomena. Mathematical and Physical Modeling of Materials Processing Operations is ideal for introducing these tools to materials engineers and researchers. Although the book emphasizes materials, some of the topics will prove interesting and useful to researchers in other fields of chemical and mechanical engineering.

Author : Oleg Minin,Igor Minin
Publisher : BoD – Books on Demand
Page : 412 pages
File Size : 46,8 Mb
Release : 2011-07-05
Category : Computers
ISBN : 9789533071695

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Computational Fluid Dynamics by Oleg Minin,Igor Minin Pdf

This book is planned to publish with an objective to provide a state-of-art reference book in the area of computational fluid dynamics for CFD engineers, scientists, applied physicists and post-graduate students. Also the aim of the book is the continuous and timely dissemination of new and innovative CFD research and developments. This reference book is a collection of 14 chapters characterized in 4 parts: modern principles of CFD, CFD in physics, industrial and in castle. This book provides a comprehensive overview of the computational experiment technology, numerical simulation of the hydrodynamics and heat transfer processes in a two dimensional gas, application of lattice Boltzmann method in heat transfer and fluid flow, etc. Several interesting applications area are also discusses in the book like underwater vehicle propeller, the flow behavior in gas-cooled nuclear reactors, simulation odour dispersion around windbreaks and so on.

Author : Michael Vynnycky
Publisher : MDPI
Page : 252 pages
File Size : 45,6 Mb
Release : 2019-07-30
Category : Science
ISBN : 9783039213214

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Continuous Casting by Michael Vynnycky Pdf

Continuous casting is an industrial process whereby molten metal is solidified into a semi-finished billet, bloom, or slab for subsequent rolling in finishing mills; it is the most frequently used process to cast not only steel, but also aluminium and copper alloys. Since its widespread introduction for steel in the 1950s, it has evolved to achieve improved yield, quality, productivity and cost efficiency. It allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardized production of a product, as well as providing increased control over the process through automation. Nevertheless, challenges remain and new ones appear, as ways are sought to minimize casting defects and to cast alloys that could originally only be cast via other means. This Special Issue of the journal "Metals" consists of 14 research articles that cover many aspects of experimental work and theoretical modelling related to the ongoing development of continuous casting processes.

Author : Ashwani Kumar,Yatika Gori,Nitesh Dutt,Yogesh Kumar Singla,Ambrish Maurya
Publisher : CRC Press
Page : 343 pages
File Size : 41,7 Mb
Release : 2021-11-23
Category : Computers
ISBN : 9781000483024

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Advanced Computational Methods in Mechanical and Materials Engineering by Ashwani Kumar,Yatika Gori,Nitesh Dutt,Yogesh Kumar Singla,Ambrish Maurya Pdf

This book provides in-depth knowledge to solve engineering, geometrical, mathematical, and scientific problems with the help of advanced computational methods with a focus on mechanical and materials engineering. Divided into three subsections covering design and fluids, thermal engineering and materials engineering, each chapter includes exhaustive literature review along with thorough analysis and future research scope. Major topics covered pertains to computational fluid dynamics, mechanical performance, design, and fabrication including wide range of applications in industries as automotive, aviation, electronics, nuclear and so forth. Covers computational methods in design and fluid dynamics with a focus on computational fluid dynamics Explains advanced material applications and manufacturing in labs using novel alloys and introduces properties in material Discusses fabrication of graphene reinforced magnesium metal matrix for orthopedic applications Illustrates simulation and optimization gear transmission, heat sink and heat exchangers application Provides unique problem-solution approach including solutions, methodology, experimental setup, and results validation This book is aimed at researchers, graduate students in mechanical engineering, computer fluid dynamics,fluid mechanics, computer modeling, machine parts, and mechatronics.

Author : Manabu Iguchi,Olusegun J. Ilegbusi
Publisher : Springer Science & Business Media
Page : 413 pages
File Size : 42,9 Mb
Release : 2010-11-10
Category : Technology & Engineering
ISBN : 9781441974792

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Modeling Multiphase Materials Processes by Manabu Iguchi,Olusegun J. Ilegbusi Pdf

Modeling Multiphase Materials Processes: Gas-Liquid Systems describes the methodology and application of physical and mathematical modeling to multi-phase flow phenomena in materials processing. The book focuses on systems involving gas-liquid interaction, the most prevalent in current metallurgical processes. The performance characteristics of these processes are largely dependent on transport phenomena. This volume covers the inherent characteristics that complicate the modeling of transport phenomena in such systems, including complex multiphase structure, intense turbulence, opacity of fluid, high temperature, coupled heat and mass transfer, chemical reactions in some cases, and poor wettability of the reactor walls. Also discussed are: solutions based on experimental and numerical modeling of bubbling jet systems, recent advances in the modeling of nanoscale multi-phase phenomena and multiphase flows in micro-scale and nano-scale channels and reactors. Modeling Multiphase Materials Processes: Gas-Liquid Systems will prove a valuable reference for researchers and engineers working in mathematical modeling and materials processing.

Author : Karel Gryc,Jan Falkus
Publisher : MDPI
Page : 214 pages
File Size : 42,7 Mb
Release : 2020-11-09
Category : Science
ISBN : 9783039434343

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Refining and Casting of Steel by Karel Gryc,Jan Falkus Pdf

Steel has become the most requested material all over the world during the rapid technological evolution of recent centuries. As our civilization grows and its technological development becomes connected with more demanding processes, it is more and more challenging to fit the required physical and mechanical properties for steel in its huge portfolio of grades for each steel producer. It is necessary to improve the refining and casting processes continuously to meet customer requirements and to lower the production costs to remain competitive. New challenges related to both the precise design of steel properties and reduction in production costs are combined with paying special attention to environmental protection. These contradictory demands are the theme of this book.

Author : Selcuk Guceri
Publisher : CRC Press
Page : 1618 pages
File Size : 45,8 Mb
Release : 1992-11-30
Category : Technology & Engineering
ISBN : 1566760054

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Transport Phenomena in Food Processing, First International Conference Proceedings by Selcuk Guceri Pdf

Author : Kaoma Mulenga Michou
Publisher : Editions Publibook
Page : 58 pages
File Size : 41,8 Mb
Release : 2016-09-02
Category : Electronic
ISBN : 9782753903661

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Modelling of coagulation processes and removal of non-metallic inclusions at by Kaoma Mulenga Michou Pdf

The present work is devoted to optimization based upon physical and mathematical modelling of calcium treatment processes for low-alloy steel grades in Ladle, using Steel Refining Unit (SRU). The widely applicable method of calcium injection into ladle on Steel Refining Unit by means of Flux-Cored Wire (FCW) or the method of silicocalcium blowing-in often requires significant flow rate of calcium containing alloys to ensure the necessary concentration of calcium and sulfur in the finished steel. Methods of mathematical modelling are widely applied for the purpose of improvement of calcium alloys injection modes into ladle. However, mainly heating processes in the ladle are taken into consideration in this connection; meanwhile hydrodynamic processes are accounted only partially. At the same time, interfacial reactions of the metal with steam bubbles play a significant role in the processes of interaction between calcium and supernatant liquid, whereby sulfur and oxygen that are dissolved in steel take part in the reactions described above. Nevertheless, only single quantitative estimates are known for kinetics of mass exchanging processes in the ladle. Finally, efficiency of calcium treatment depends on chemical composition of steel. Probability of low-melting calcium aluminates formation, which ensure improvement of pouring capacity, depends not only on the frequently used proportion of [Ca] to [Al], but also on conditions of steel oxidation and sulfur content in the steel. Therefore, optimization of injection modes for calcium containing alloys based on the thermodynamic and kinetic analysis of steel deoxidation and modification conditions, as well as on the mathematical modelling of mass exchanging processes, represents a crucial scientific and technical challenge of nowadays.

Author : Tomomasa Uemura,Yoshiaki Ueda,Manabu Iguchi
Publisher : Springer
Page : 218 pages
File Size : 47,5 Mb
Release : 2017-10-05
Category : Technology & Engineering
ISBN : 9784431565673

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Flow Visualization in Materials Processing by Tomomasa Uemura,Yoshiaki Ueda,Manabu Iguchi Pdf

This book presents a comprehensive review of particle image velocimetry (PIV) and particle tracking velocimetry (PTV) as tools for experimental fluid dynamics (EFD). It shares practical techniques for high-speed photography to accurately analyze multi-phase flows; in particular, it addresses the practical know-how involved in high-speed photography, including e.g. the proper setup for lights and illumination; optical systems to remove perspective distortion; and the density of tracer particles and their fluorescence in the context of PIV and PTV. In this regard, using the correct photographic technique plays a key role in the accurate analysis of the respective flow. Practical applications include bubble and liquid flow dynamics in materials processes agitated by gas injection at high temperatures, mixing phenomena due to jet-induced rotary sloshing, and wettability effects on the efficiency of the processes.

Author : Andrey A. Radionov,Oleg A. Kravchenko,Victor I. Guzeev,Yurij V. Rozhdestvenskiy
Publisher : Springer Nature
Page : 1257 pages
File Size : 41,8 Mb
Release : 2019-11-30
Category : Technology & Engineering
ISBN : 9783030220419

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Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2019) by Andrey A. Radionov,Oleg A. Kravchenko,Victor I. Guzeev,Yurij V. Rozhdestvenskiy Pdf

This book highlights recent findings in industrial, manufacturing and mechanical engineering, and provides an overview of the state of the art in these fields, mainly in Russia and Eastern Europe. A broad range of topics and issues in modern engineering are discussed, including the dynamics of machines and working processes, friction, wear and lubrication in machines, surface transport and technological machines, manufacturing engineering of industrial facilities, materials engineering, metallurgy, control systems and their industrial applications, industrial mechatronics, automation and robotics. The book gathers selected papers presented at the 5th International Conference on Industrial Engineering (ICIE), held in Sochi, Russia in March 2019. The authors are experts in various fields of engineering, and all papers have been carefully reviewed. Given its scope, the book will be of interest to a wide readership, including mechanical and production engineers, lecturers in engineering disciplines, and engineering graduates.

Author : Yogeshwar Sahai (Ph. D.),Toshihiko Emi
Publisher : World Scientific
Page : 329 pages
File Size : 41,8 Mb
Release : 2008
Category : Technology & Engineering
ISBN : 9789812706218

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Tundish Technology for Clean Steel Production by Yogeshwar Sahai (Ph. D.),Toshihiko Emi Pdf

Continuous casting of steel has become a widely used process and an important step in steel production. The worldwide share of continuously cast steel has increased significantly in the last 25 years or so. However, concurrent with this increase in production levels are stringent quality requirements that have become crucial in the face of progressively increasing machine throughputs and larger product dimensions. As a result, steel cleanliness and strict composition control are now the primary concern of steelmakers.The tundish is the last metallurgical vessel through which molten metal flows before solidifying in the continuous casting mold. During the transfer of metal through the tundish, molten steel interacts with refractories, slag, and the atmosphere. Thus, the proper design and operation of a tundish are important for delivering steel of strict composition and quality. This pioneering book is the first of its kind to cover all aspects of tundish technology, ranging from fundamental aspects and theory necessary for understanding the basic concepts of tundish operations to operational aspects of the tundish. Written by internationally recognized experts in continuous casting technology in general and tundish technology in particular, this book is sufficiently fundamental to serve as a graduate-level textbook on process metallurgy or as an important reference for metallurgical researchers; at the same time, it is comprehensive enough to contribute to the understanding of scientists and engineers engaged in research and development in the steel industry.

Author : Ahindra Ghosh
Publisher : CRC Press
Page : 343 pages
File Size : 49,7 Mb
Release : 2000-12-13
Category : Science
ISBN : 9781420042313

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Secondary Steelmaking by Ahindra Ghosh Pdf

The steelmaking industry and its customers have benefited enormously from the many significant technological advances of the last thirty years. As their customers become ever more quality conscious, however, steelmakers must continue their efforts to minimize harmful impurities, minimize as well as modify harmful nonmetallic inclusions and achieve