Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
DNS and LES of Reactive Flows
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Special Issue: DNS and LES of Reactive Flows, Eindhoven, 2008
Author: Rob J. M. Bastiaans
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
Les, Dns, and Rans for the Analysis of High-Speed Turbulent Reacting Flows
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722613693
Category :
Languages : en
Pages : 70
Book Description
A filtered density function (FDF) method suitable for chemically reactive flows is developed in the context of large eddy simulation. The advantage of the FDF methodology is its inherent ability to resolve subgrid scales (SGS) scalar correlations that otherwise have to be modeled. Because of the lack of robust models to accurately predict these correlations in turbulent reactive flows, simulations involving turbulent combustion are often met with a degree of skepticism. The FDF methodology avoids the closure problem associated with these terms and treats the reaction in an exact manner. The scalar FDF approach is particularly attractive since it can be coupled with existing hydrodynamic computational fluid dynamics (CFD) codes. Colucci, P. J. and Jaberi, F. A. and Givi, P. Langley Research Center...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722613693
Category :
Languages : en
Pages : 70
Book Description
A filtered density function (FDF) method suitable for chemically reactive flows is developed in the context of large eddy simulation. The advantage of the FDF methodology is its inherent ability to resolve subgrid scales (SGS) scalar correlations that otherwise have to be modeled. Because of the lack of robust models to accurately predict these correlations in turbulent reactive flows, simulations involving turbulent combustion are often met with a degree of skepticism. The FDF methodology avoids the closure problem associated with these terms and treats the reaction in an exact manner. The scalar FDF approach is particularly attractive since it can be coupled with existing hydrodynamic computational fluid dynamics (CFD) codes. Colucci, P. J. and Jaberi, F. A. and Givi, P. Langley Research Center...
Modeling and Simulation of Reactive Flows
Author: A.L. De Bortoli
Publisher: Elsevier
ISBN: 0128029919
Category : Technology & Engineering
Languages : en
Pages : 212
Book Description
Modelling and Simulation of Reactive Flows presents information on modeling and how to numerically solve reactive flows. The book offers a distinctive approach that combines diffusion flames and geochemical flow problems, providing users with a comprehensive resource that bridges the gap for scientists, engineers, and the industry. Specifically, the book looks at the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms. It considers the most common methods used in practical situations, along with equations for reactive flows, and various techniques—including flamelet, ILDM, and Redim—for jet flames and plumes, with solutions for both. In addition, the book includes techniques to accelerate the convergence of numerical simulation, and a discussion on the analysis of uncertainties with numerical results, making this a useful reference for anyone who is interested in both combustion in free flow and in porous media. - Helps readers learn how to apply applications of numerical methods to simulate geochemical kinetics - Presents methods on how to transform the transport equations in several coordinate systems - Includes discussions of the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms, including the most common methods used in practical situations - Offers a distinctive approach that combines diffusion flames and geochemical flow problems
Publisher: Elsevier
ISBN: 0128029919
Category : Technology & Engineering
Languages : en
Pages : 212
Book Description
Modelling and Simulation of Reactive Flows presents information on modeling and how to numerically solve reactive flows. The book offers a distinctive approach that combines diffusion flames and geochemical flow problems, providing users with a comprehensive resource that bridges the gap for scientists, engineers, and the industry. Specifically, the book looks at the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms. It considers the most common methods used in practical situations, along with equations for reactive flows, and various techniques—including flamelet, ILDM, and Redim—for jet flames and plumes, with solutions for both. In addition, the book includes techniques to accelerate the convergence of numerical simulation, and a discussion on the analysis of uncertainties with numerical results, making this a useful reference for anyone who is interested in both combustion in free flow and in porous media. - Helps readers learn how to apply applications of numerical methods to simulate geochemical kinetics - Presents methods on how to transform the transport equations in several coordinate systems - Includes discussions of the basic concepts related to reaction rates, chemical kinetics, and the development of reduced kinetic mechanisms, including the most common methods used in practical situations - Offers a distinctive approach that combines diffusion flames and geochemical flow problems
Data Analysis for Direct Numerical Simulations of Turbulent Combustion
Author: Heinz Pitsch
Publisher: Springer Nature
ISBN: 3030447189
Category : Mathematics
Languages : en
Pages : 294
Book Description
This book presents methodologies for analysing large data sets produced by the direct numerical simulation (DNS) of turbulence and combustion. It describes the development of models that can be used to analyse large eddy simulations, and highlights both the most common techniques and newly emerging ones. The chapters, written by internationally respected experts, invite readers to consider DNS of turbulence and combustion from a formal, data-driven standpoint, rather than one led by experience and intuition. This perspective allows readers to recognise the shortcomings of existing models, with the ultimate goal of quantifying and reducing model-based uncertainty. In addition, recent advances in machine learning and statistical inferences offer new insights on the interpretation of DNS data. The book will especially benefit graduate-level students and researchers in mechanical and aerospace engineering, e.g. those with an interest in general fluid mechanics, applied mathematics, and the environmental and atmospheric sciences.
Publisher: Springer Nature
ISBN: 3030447189
Category : Mathematics
Languages : en
Pages : 294
Book Description
This book presents methodologies for analysing large data sets produced by the direct numerical simulation (DNS) of turbulence and combustion. It describes the development of models that can be used to analyse large eddy simulations, and highlights both the most common techniques and newly emerging ones. The chapters, written by internationally respected experts, invite readers to consider DNS of turbulence and combustion from a formal, data-driven standpoint, rather than one led by experience and intuition. This perspective allows readers to recognise the shortcomings of existing models, with the ultimate goal of quantifying and reducing model-based uncertainty. In addition, recent advances in machine learning and statistical inferences offer new insights on the interpretation of DNS data. The book will especially benefit graduate-level students and researchers in mechanical and aerospace engineering, e.g. those with an interest in general fluid mechanics, applied mathematics, and the environmental and atmospheric sciences.
An Introduction to Turbulent Reacting Flows
Author: R. S. Cant
Publisher: Imperial College Press
ISBN: 1860947786
Category : Science
Languages : en
Pages : 192
Book Description
Provides physical intuition and key entries to the body of literature. This book includes historical perspective of the theories.
Publisher: Imperial College Press
ISBN: 1860947786
Category : Science
Languages : en
Pages : 192
Book Description
Provides physical intuition and key entries to the body of literature. This book includes historical perspective of the theories.
LES, DNS and RANS for the Analysis of High-speed Turbulent Reacting Flows
Author:
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 50
Book Description
"The purpose of this research is to continue our efforts in advancing the state of knowledge in large eddy simulation (LES), direct numerical simulation (DNS) and Reynolds averaged Navier Stokes (RANS) methods for the computational analysis of high-speed reacting turbulent flows. In the second phase of this work, covering the period: August 1, 1994 - August 1, 1995, we have focused our efforts on two programs: (1) Developments of explicit algebraic moment closures for statistical descriptions of compressible reacting flows, (2) Development of Monte Carlo numerical methods for LES of chemically reacting flows. This report provides a complete description of our efforts during this past year"--Abstract.
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 50
Book Description
"The purpose of this research is to continue our efforts in advancing the state of knowledge in large eddy simulation (LES), direct numerical simulation (DNS) and Reynolds averaged Navier Stokes (RANS) methods for the computational analysis of high-speed reacting turbulent flows. In the second phase of this work, covering the period: August 1, 1994 - August 1, 1995, we have focused our efforts on two programs: (1) Developments of explicit algebraic moment closures for statistical descriptions of compressible reacting flows, (2) Development of Monte Carlo numerical methods for LES of chemically reacting flows. This report provides a complete description of our efforts during this past year"--Abstract.
Turbulent Reactive Flows
Author: R. Borghi
Publisher: Springer
ISBN: 9781461396321
Category : Science
Languages : en
Pages : 950
Book Description
Turbulent reactive flows are of common occurrance in combustion engineering, chemical reactor technology and various types of engines producing power and thrust utilizing chemical and nuclear fuels. Pollutant formation and dispersion in the atmospheric environment and in rivers, lakes and ocean also involve interactions between turbulence, chemical reactivity and heat and mass transfer processes. Considerable advances have occurred over the past twenty years in the understanding, analysis, measurement, prediction and control of turbulent reactive flows. Two main contributors to such advances are improvements in instrumentation and spectacular growth in computation: hardware, sciences and skills and data processing software, each leading to developments in others. Turbulence presents several features that are situation-specific. Both for that reason and a number of others, it is yet difficult to visualize a so-called solution of the turbulence problem or even a generalized approach to the problem. It appears that recognition of patterns and structures in turbulent flow and their study based on considerations of stability, interactions, chaos and fractal character may be opening up an avenue of research that may be leading to a generalized approach to classification and analysis and, possibly, prediction of specific processes in the flowfield. Predictions for engineering use, on the other hand, can be foreseen for sometime to come to depend upon modeling of selected features of turbulence at various levels of sophistication dictated by perceived need and available capability.
Publisher: Springer
ISBN: 9781461396321
Category : Science
Languages : en
Pages : 950
Book Description
Turbulent reactive flows are of common occurrance in combustion engineering, chemical reactor technology and various types of engines producing power and thrust utilizing chemical and nuclear fuels. Pollutant formation and dispersion in the atmospheric environment and in rivers, lakes and ocean also involve interactions between turbulence, chemical reactivity and heat and mass transfer processes. Considerable advances have occurred over the past twenty years in the understanding, analysis, measurement, prediction and control of turbulent reactive flows. Two main contributors to such advances are improvements in instrumentation and spectacular growth in computation: hardware, sciences and skills and data processing software, each leading to developments in others. Turbulence presents several features that are situation-specific. Both for that reason and a number of others, it is yet difficult to visualize a so-called solution of the turbulence problem or even a generalized approach to the problem. It appears that recognition of patterns and structures in turbulent flow and their study based on considerations of stability, interactions, chaos and fractal character may be opening up an avenue of research that may be leading to a generalized approach to classification and analysis and, possibly, prediction of specific processes in the flowfield. Predictions for engineering use, on the other hand, can be foreseen for sometime to come to depend upon modeling of selected features of turbulence at various levels of sophistication dictated by perceived need and available capability.
Computational Models for Turbulent Reacting Flows
Author: Rodney O. Fox
Publisher: Cambridge University Press
ISBN: 9780521659079
Category : Mathematics
Languages : en
Pages : 156
Book Description
Table of contents
Publisher: Cambridge University Press
ISBN: 9780521659079
Category : Mathematics
Languages : en
Pages : 156
Book Description
Table of contents
Reactive Flows, Diffusion and Transport
Author: Willi Jäger
Publisher: Springer Science & Business Media
ISBN: 354028396X
Category : Mathematics
Languages : en
Pages : 659
Book Description
The articles in this volume summarize the research results obtained in the former SFB 359 "Reactive Flow, Diffusion and Transport" which has been supported by the DFG over the period 1993-2004. The main subjects are physical-chemical processes sharing the difficulty of interacting diffusion, transport and reaction which cannot be considered separately. The modeling and simulation within this book is accompanied by experiments.
Publisher: Springer Science & Business Media
ISBN: 354028396X
Category : Mathematics
Languages : en
Pages : 659
Book Description
The articles in this volume summarize the research results obtained in the former SFB 359 "Reactive Flow, Diffusion and Transport" which has been supported by the DFG over the period 1993-2004. The main subjects are physical-chemical processes sharing the difficulty of interacting diffusion, transport and reaction which cannot be considered separately. The modeling and simulation within this book is accompanied by experiments.