Direct Numerical Simulation and Multiscale Modelling

Direct Numerical Simulation and Multiscale Modelling
Author: Kai Luo
Publsiher: Academic Press
Total Pages: 135
Release: 2021-04
Genre: Electronic Book
ISBN: 0128174897

Download Direct Numerical Simulation and Multiscale Modelling Book in PDF, Epub and Kindle

Direct Numerical Simulation and Multiscale Modelling provides a unified description of DNS, LES and RANS in the context of broader modelling and simulation practice. The relevance of these techniques to flow, turbulence, combustion and multiphysics is explained to help readers apply them to a wide range of research topics. Introductory sections help readers get up to speed with the theories of turbulence, combustion, and multiphysics, along with the basics of simulation and modelling. This is followed by thorough treatments of the numerical methods, boundary conditions, and specific modelling approaches for different purposes. Applications in fields including aerospace, biomedical, and chemical engineering are investigated where appropriate. This is the ideal guide for readers interested in direct numerical simulation, or modelling/simulation of turbulence more generally, who need an overview of the methods available and advice on how to select and implement the correct one.

From Multiscale Modeling to Meso Science

From Multiscale Modeling to Meso Science
Author: Jinghai Li,Wei Ge,Wei Wang,Ning Yang,Xinhua Liu,Limin Wang,Xianfeng He,Xiaowei Wang,Junwu Wang,Mooson Kwauk
Publsiher: Springer Science & Business Media
Total Pages: 484
Release: 2013-03-22
Genre: Technology & Engineering
ISBN: 9783642351891

Download From Multiscale Modeling to Meso Science Book in PDF, Epub and Kindle

Multiscale modeling is becoming essential for accurate, rapid simulation in science and engineering. This book presents the results of three decades of research on multiscale modeling in process engineering from principles to application, and its generalization for different fields. This book considers the universality of meso-scale phenomena for the first time, and provides insight into the emerging discipline that unifies them, meso-science, as well as new perspectives for virtual process engineering. Multiscale modeling is applied in areas including: multiphase flow and fluid dynamics chemical, biochemical and process engineering mineral processing and metallurgical engineering energy and resources materials science and engineering Jinghai Li is Vice-President of the Chinese Academy of Sciences (CAS), a professor at the Institute of Process Engineering, CAS, and leader of the EMMS (Energy-minimizing multiscale) Group. Wei Ge, Wei Wang, Ning Yang and Junwu Wang are professors at the EMMS Group, part of the Institute of Process Engineering, CAS. Xinhua Liu, Limin Wang, Xianfeng He and Xiaowei Wang are associate professors at the EMMS Group, part of the Institute of Process Engineering, CAS. Mooson Kwauk is an emeritus director of the Institute of Process Engineering, CAS, and is an advisor to the EMMS Group.

Multiscale Modeling and Analysis for Materials Simulation

Multiscale Modeling and Analysis for Materials Simulation
Author: Weizhu Bao,Qiang Du
Publsiher: World Scientific
Total Pages: 285
Release: 2012
Genre: Mathematics
ISBN: 9789814360890

Download Multiscale Modeling and Analysis for Materials Simulation Book in PDF, Epub and Kindle

The Institute for Mathematical Sciences at the National University of Singapore hosted a two-month research program on "Mathematical Theory and Numerical Methods for Computational Materials Simulation and Design" from 1 July to 31 August 2009. As an important part of the program, tutorials and special lectures were given by leading experts in the fields for participating graduate students and junior researchers. This invaluable volume collects four expanded lecture notes with self-contained tutorials. They cover a number of aspects on multiscale modeling, analysis and simulations for problems arising from materials science including some critical components in computational prediction of materials properties such as the multiscale properties of complex materials, properties of defects, interfaces and material microstructures under different conditions, critical issues in developing efficient numerical methods and analytic frameworks for complex and multiscale materials models. This volume serves to inspire graduate students and researchers who choose to embark into original research work in these fields.

Numerical Techniques for Direct and Large Eddy Simulations

Numerical Techniques for Direct and Large Eddy Simulations
Author: Xi Jiang,Choi-Hong Lai
Publsiher: CRC Press
Total Pages: 276
Release: 2016-04-19
Genre: Mathematics
ISBN: 1420075799

Download Numerical Techniques for Direct and Large Eddy Simulations Book in PDF, Epub and Kindle

Compared to the traditional modeling of computational fluid dynamics, direct numerical simulation (DNS) and large-eddy simulation (LES) provide a very detailed solution of the flow field by offering enhanced capability in predicting the unsteady features of the flow field. In many cases, DNS can obtain results that are impossible using any other means while LES can be employed as an advanced tool for practical applications. Focusing on the numerical needs arising from the applications of DNS and LES, Numerical Techniques for Direct and Large-Eddy Simulations covers basic techniques for DNS and LES that can be applied to practical problems of flow, turbulence, and combustion. After introducing Navier–Stokes equations and the methodologies of DNS and LES, the book discusses boundary conditions for DNS and LES, along with time integration methods. It then describes the numerical techniques used in the DNS of incompressible and compressible flows. The book also presents LES techniques for simulating incompressible and compressible flows. The final chapter explores current challenges in DNS and LES. Helping readers understand the vast amount of literature in the field, this book explains how to apply relevant numerical techniques for practical computational fluid dynamics simulations and implement these methods in fluid dynamics computer programs.

Multiscale and Multiresolution Approaches in Turbulence

Multiscale and Multiresolution Approaches in Turbulence
Author: Pierre Sagaut
Publsiher: World Scientific
Total Pages: 446
Release: 2013
Genre: Science
ISBN: 9781848169876

Download Multiscale and Multiresolution Approaches in Turbulence Book in PDF, Epub and Kindle

The book aims to provide the reader with an updated general presentation of multiscale/multiresolution approaches in turbulent flow simulations. All modern approaches (LES, hybrid RANS/LES, DES, SAS) are discussed and recast in a global comprehensive framework. Both theoretical features and practical implementation details are addressed. Some full scale applications are described, to provide the reader with relevant guidelines to facilitate a future use of these methods.

Computational Multiscale Modeling of Fluids and Solids

Computational Multiscale Modeling of Fluids and Solids
Author: Martin Oliver Steinhauser
Publsiher: Springer Science & Business Media
Total Pages: 863
Release: 2008
Genre: Science
ISBN: 9783540751168

Download Computational Multiscale Modeling of Fluids and Solids Book in PDF, Epub and Kindle

The idea of the book is to provide a comprehensive overview of computational physics methods and techniques, that are used for materials modeling on different length and time scales. Each chapter first provides an overview of the physical basic principles which are the basis for the numerical and mathematical modeling on the respective length-scale. The book includes the micro-scale, the meso-scale and the macro-scale. The chapters follow this classification. The book will explain in detail many tricks of the trade of some of the most important methods and techniques that are used to simulate materials on the perspective levels of spatial and temporal resolution. Case studies are occasionally included to further illustrate some methods or theoretical considerations. Example applications for all techniques are provided, some of which are from the author’s own contributions to some of the research areas. Methods are explained, if possible, on the basis of the original publications but also references to standard text books established in the various fields are mentioned.

Direct Numerical Simulations

Direct Numerical Simulations
Author: Srinivasa Rao
Publsiher: Unknown
Total Pages: 135
Release: 2021
Genre: Fluid mechanics
ISBN: 1789848369

Download Direct Numerical Simulations Book in PDF, Epub and Kindle

Multiscale Modelling and Simulation

Multiscale Modelling and Simulation
Author: Sabine Attinger,Petros Koumoutsakos
Publsiher: Springer Science & Business Media
Total Pages: 284
Release: 2012-12-06
Genre: Mathematics
ISBN: 9783642187568

Download Multiscale Modelling and Simulation Book in PDF, Epub and Kindle

In August 2003, ETHZ Computational Laboratory (CoLab), together with the Swiss Center for Scientific Computing in Manno and the Universit della Svizzera Italiana (USI), organized the Summer School in "Multiscale Modelling and Simulation" in Lugano, Switzerland. This summer school brought together experts in different disciplines to exchange ideas on how to link methodologies on different scales. Relevant examples of practical interest include: structural analysis of materials, flow through porous media, turbulent transport in high Reynolds number flows, large-scale molecular dynamic simulations, ab-initio physics and chemistry, and a multitude of others. Though multiple scale models are not new, the topic has recently taken on a new sense of urgency. A number of hybrid approaches are now created in which ideas coming from distinct disciplines or modelling approaches are unified to produce new and computationally efficient techniques