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Multiphase reacting flows: modelling and simulation

Multiphase reacting flows: modelling and simulation
Author: Daniele L. Marchisio
Publisher: Springer Science & Business Media
Total Pages: 269
Release: 2007-10-16
Genre: Technology & Engineering
ISBN: 3211724648

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This book describes the most widely applicable modeling approaches. Chapters are organized in six groups covering from fundamentals to relevant applications. The book covers particle-based methods and also discusses Eulerian-Eulerian and Eulerian-Lagrangian techniques based on finite-volume schemes. Moreover, the possibility of modeling the poly-dispersity of the secondary phases in Eulerian-Eulerian schemes by solving the population balance equation is discussed.


Theory and Modeling of Dispersed Multiphase Turbulent Reacting Flows

Theory and Modeling of Dispersed Multiphase Turbulent Reacting Flows
Author: Lixing Zhou
Publisher: Butterworth-Heinemann
Total Pages: 342
Release: 2018-01-25
Genre: Science
ISBN: 0128134666

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Theory and Modeling of Dispersed Multiphase Turbulent Reacting Flows gives a systematic account of the fundamentals of multiphase flows, turbulent flows and combustion theory. It presents the latest advances of models and theories in the field of dispersed multiphase turbulent reacting flow, covering basic equations of multiphase turbulent reacting flows, modeling of turbulent flows, modeling of multiphase turbulent flows, modeling of turbulent combusting flows, and numerical methods for simulation of multiphase turbulent reacting flows, etc. The book is ideal for graduated students, researchers and engineers in many disciplines in power and mechanical engineering. Provides a combination of multiphase fluid dynamics, turbulence theory and combustion theory Covers physical phenomena, numerical modeling theory and methods, and their applications Presents applications in a wide range of engineering facilities, such as utility and industrial furnaces, gas-turbine and rocket engines, internal combustion engines, chemical reactors, and cyclone separators, etc.


Chemical Reactor Modeling

Chemical Reactor Modeling
Author: Hugo A. Jakobsen
Publisher: Springer Science & Business Media
Total Pages: 1244
Release: 2008-10-15
Genre: Technology & Engineering
ISBN: 3540686223

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This book closes the gap between Chemical Reaction Engineering and Fluid Mechanics. It provides the basic theory for momentum, heat and mass transfer in reactive systems. Numerical methods for solving the resulting equations as well as the interplay between physical and numerical modes are discussed. The book is written using the standard terminology of this community. It is intended for researchers and engineers who want to develop their own codes, or who are interested in a deeper insight into commercial CFD codes in order to derive consistent extensions and to overcome "black box" practice. It can also serve as a textbook and reference book.


Numerical Simulation of Multiphase Reactors with Continuous Liquid Phase

Numerical Simulation of Multiphase Reactors with Continuous Liquid Phase
Author: Chao Yang
Publisher: Academic Press
Total Pages: 322
Release: 2014-09-04
Genre: Technology & Engineering
ISBN: 0124115799

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Numerical simulation of multiphase reactors with continuous liquid phase provides current research and findings in multiphase problems, which will assist researchers and engineers to advance this field. This is an ideal reference book for readers who are interested in design and scale-up of multiphase reactors and crystallizers, and using mathematical model and numerical simulation as tools. Yang and Mao’s book focuses on modeling and numerical applications directly in the chemical, petrochemical, and hydrometallurgical industries, rather than theories of multiphase flow. The content will help you to solve reacting flow problems and/or system design/optimization problems. The fundamentals and principles of flow and mass transfer in multiphase reactors with continuous liquid phase are covered, which will aid the reader’s understanding of multiphase reaction engineering. Provides practical applications for using multiphase stirred tanks, reactors, and microreactors, with detailed explanation of investigation methods Presents the most recent research efforts in this highly active field on multiphase reactors and crystallizers Covers mathematical models, numerical methods and experimental techniques for multiphase flow and mass transfer in reactors and crystallizers


Methodologies for Extracting Kinetic Constants for Multiphase Reacting Flow Simulation

Methodologies for Extracting Kinetic Constants for Multiphase Reacting Flow Simulation
Author:
Publisher:
Total Pages: 9
Release: 1997
Genre:
ISBN:

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Flows in industrial reactors often involve complex reactions of many species. A computational fluid dynamics (CFD) computer code, ICRKFLO, was developed to simulate multiphase, multi-species reacting flows. The ICRKFLO uses a hybrid technique to calculate species concentration and reaction for a large number of species in a reacting flow. This technique includes a hydrodynamic and reacting flow simulation with a small but sufficient number of lumped reactions to compute flow field properties followed by a calculation of local reaction kinetics and transport of many subspecies (order of 10 to 100). Kinetic rate constants of the numerous subspecies chemical reactions are difficult to determine. A methodology has been developed to extract kinetic constants from experimental data efficiently. A flow simulation of a fluid catalytic cracking (FCC) riser was successfully used to demonstrate this methodology.


Bridging Scales in Modelling and Simulation of Non-Reacting and Reacting Flows

Bridging Scales in Modelling and Simulation of Non-Reacting and Reacting Flows
Author:
Publisher: Academic Press
Total Pages: 202
Release: 2018-03-27
Genre: Technology & Engineering
ISBN: 0128150971

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Bridging Scales in Modelling and Simulating Reacting Flows, Part I , Volume 52 presents key methods to bridge scales in the simulation of reacting single phase flows. New sections in the updated release include topics such as quadrature-based moment methods for multiphase chemically reacting flows, the collaboration of experiments and simulations for the development of predictive models, a simulation of turbulent coalescence and breakage of bubbles and droplets in the presence of surfactants, a section on salts and contaminants, and information on the numerical simulation of reactive flows. Contains reviews by leading authorities in their respective areas Presents up-to-date reviews of the latest techniques in the modeling of catalytic processes Includes a broad mix of US and European authors, as well as academic, industrial and research institute perspectives Provides discussions on the connections between computational and experimental methods


Chemical Reactor Modeling

Chemical Reactor Modeling
Author: Hugo A. Jakobsen
Publisher: Springer Science & Business Media
Total Pages: 1589
Release: 2014-04-02
Genre: Technology & Engineering
ISBN: 3319050923

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Chemical Reactor Modeling closes the gap between Chemical Reaction Engineering and Fluid Mechanics. The second edition consists of two volumes: Volume 1: Fundamentals. Volume 2: Chemical Engineering Applications In volume 1 most of the fundamental theory is presented. A few numerical model simulation application examples are given to elucidate the link between theory and applications. In volume 2 the chemical reactor equipment to be modeled are described. Several engineering models are introduced and discussed. A survey of the frequently used numerical methods, algorithms and schemes is provided. A few practical engineering applications of the modeling tools are presented and discussed. The working principles of several experimental techniques employed in order to get data for model validation are outlined. The monograph is based on lectures regularly taught in the fourth and fifth years graduate courses in transport phenomena and chemical reactor modeling and in a post graduate course in modern reactor modeling at the Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. The objective of the book is to present the fundamentals of the single-fluid and multi-fluid models for the analysis of single and multiphase reactive flows in chemical reactors with a chemical reactor engineering rather than mathematical bias. Organized into 13 chapters, it combines theoretical aspects and practical applications and covers some of the recent research in several areas of chemical reactor engineering. This book contains a survey of the modern literature in the field of chemical reactor modeling.


Computational Models for Turbulent Reacting Flows

Computational Models for Turbulent Reacting Flows
Author: Rodney O. Fox
Publisher: Cambridge University Press
Total Pages: 156
Release: 2003-10-30
Genre: Mathematics
ISBN: 9780521659079

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Table of contents


Simulation of Multiphase and Chemical Reactive Flows Based on Five Equation Model

Simulation of Multiphase and Chemical Reactive Flows Based on Five Equation Model
Author: Yu-Hsuan Huang
Publisher:
Total Pages: 256
Release: 2021
Genre:
ISBN:

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In the simulation of scramjet engines, many complex physical phenomena are involved, such as the fuel atomization, mass transition, and chemical reactions. In order to understand these complex physical phenomena, the purpose of the current thesis is to develop an in-house code for analyzing the flow structures of the scramjet engine. In this study, we first used the five-equation multiphase flow model and the Lagrangian method to reproduce the process of the fuel atomization and evaporation in a flow over side jet problem. Shock waves, recirculation zones and breakup processes of droplet particles were well captured. Comparing the results, we found that the five-equation multiphase model shows a better resolution in the shock capturing, comparing with the single phase Navier-Stokes equations. Then, we combined the five-equation multi-phase model and the single-step reaction model to simulate the formation of the cell structures in the detonation tube. The detonation waves under various operating conditions were discussed based on a single-step reaction model to model the complex reactions. Finally, a preliminary simulation of the DLR scramjet is performed. The current works have achieved satisfactory agreement compared to the experimental data no matter in reacting flow case or non-reacting flow case.


Chemically Reacting Flow

Chemically Reacting Flow
Author: Robert J. Kee
Publisher: John Wiley & Sons
Total Pages: 792
Release: 2017-09-27
Genre: Science
ISBN: 1119186293

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A guide to the theoretical underpinnings and practical applications of chemically reacting flow Chemically Reacting Flow: Theory, Modeling, and Simulation, Second Edition combines fundamental concepts in fluid mechanics and physical chemistry while helping students and professionals to develop the analytical and simulation skills needed to solve real-world engineering problems. The authors clearly explain the theoretical and computational building blocks enabling readers to extend the approaches described to related or entirely new applications. New to this Second Edition are substantially revised and reorganized coverage of topics treated in the first edition. New material in the book includes two important areas of active research: reactive porous-media flows and electrochemical kinetics. These topics create bridges between traditional fluid-flow simulation approaches and transport within porous-media electrochemical systems. The first half of the book is devoted to multicomponent fluid-mechanical fundamentals. In the second half the authors provide the necessary fundamental background needed to couple reaction chemistry into complex reacting-flow models. Coverage of such topics is presented in self-contained chapters, allowing a great deal of flexibility in course curriculum design. • Features new chapters on reactive porous-media flow, electrochemistry, chemical thermodynamics, transport properties, and solving differential equations in MATLAB • Provides the theoretical underpinnings and practical applications of chemically reacting flow • Emphasizes fundamentals, allowing the analyst to understand fundamental theory underlying reacting-flow simulations • Helps readers to acquire greater facility in the derivation and solution of conservation equations in new or unusual circumstances • Reorganized to facilitate use as a class text and now including a solutions manual for academic adopters Computer simulation of reactive systems is highly efficient and cost-effective in the development, enhancement, and optimization of chemical processes. Chemically Reacting Flow: Theory, Modeling, and Simulation, Second Edition helps prepare graduate students in mechanical or chemical engineering, as well as research professionals in those fields take utmost advantage of that powerful capability.