Numerical Techniques for Direct and Large-eddy Simulations

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Opis: Numerical Techniques for Direct and Large-eddy Simulations - Choi-Hong Lai, Xi Jiang

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. The book can be recommended to CFD practitioners at the early stage of their academic career, such as postgraduate students and junior researchers, to understand the vast literature in the field and to apply the relevant numerical techniques. -Zentralblatt MATH 1185Introduction Governing Equations: Compressible and Incompressible Formulations Turbulence and Direct Numerical Simulation (DNS) Large-Eddy Simulation (LES) Numerical Treatment of Boundary Conditions Inflow and Outflow Boundary Conditions Wall Boundary Conditions Other Boundary Conditions Discrete Time Integration Methods High-Order Runge-Kutta (RK) Methods Linear Multistep Methods: Adams-Bashforth and Adams-Moulton Methods Other Time Integration Methods DNS of Incompressible Flows Sample Results: DNS of Channel Flows Numerical Features: DNS of Incompressible Flows DNS of Compressible Flows Sample Results: DNS of Compressible Jet Flows Numerical Features: High-Order Schemes for Spatial Discretization LES of Incompressible Flows Sample Results: LES of Incompressible Flows in Complex Geometries Subgrid Scale Modeling of Incompressible Flows Numerical Features: LES on Unstructured Grids and Immersed Boundary Technique for Complex Geometries LES of Compressible Flows Sample Results of LES of Compressible Flows Subgrid-Scale Modeling of Compressible Flows and Implicit Large-Eddy Simulation (ILES) Further Topics and Challenges in DNS and LES Multiscale Flow Simulations Challenges in DNS and LES: Complex Geometry and SGS Modeling Hybridization: Detached Eddy Simulation (DES) Appendix: Supplementary Material: FORTRAN 90 Routines of the Finite Difference Schemes Index References appear at the end of each chapter.


Szczegóły: Numerical Techniques for Direct and Large-eddy Simulations - Choi-Hong Lai, Xi Jiang

Tytuł: Numerical Techniques for Direct and Large-eddy Simulations
Autor: Choi-Hong Lai, Xi Jiang
Producent: CRC Press Inc.
ISBN: 9781420075786
Rok produkcji: 2008
Ilość stron: 276
Oprawa: Twarda
Waga: 0.61 kg


Recenzje: Numerical Techniques for Direct and Large-eddy Simulations - Choi-Hong Lai, Xi Jiang

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Numerical Techniques for Direct and Large-eddy Simulations

,

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. The book can be recommended to CFD practitioners at the early stage of their academic career, such as postgraduate students and junior researchers, to understand the vast literature in the field and to apply the relevant numerical techniques. -Zentralblatt MATH 1185Introduction Governing Equations: Compressible and Incompressible Formulations Turbulence and Direct Numerical Simulation (DNS) Large-Eddy Simulation (LES) Numerical Treatment of Boundary Conditions Inflow and Outflow Boundary Conditions Wall Boundary Conditions Other Boundary Conditions Discrete Time Integration Methods High-Order Runge-Kutta (RK) Methods Linear Multistep Methods: Adams-Bashforth and Adams-Moulton Methods Other Time Integration Methods DNS of Incompressible Flows Sample Results: DNS of Channel Flows Numerical Features: DNS of Incompressible Flows DNS of Compressible Flows Sample Results: DNS of Compressible Jet Flows Numerical Features: High-Order Schemes for Spatial Discretization LES of Incompressible Flows Sample Results: LES of Incompressible Flows in Complex Geometries Subgrid Scale Modeling of Incompressible Flows Numerical Features: LES on Unstructured Grids and Immersed Boundary Technique for Complex Geometries LES of Compressible Flows Sample Results of LES of Compressible Flows Subgrid-Scale Modeling of Compressible Flows and Implicit Large-Eddy Simulation (ILES) Further Topics and Challenges in DNS and LES Multiscale Flow Simulations Challenges in DNS and LES: Complex Geometry and SGS Modeling Hybridization: Detached Eddy Simulation (DES) Appendix: Supplementary Material: FORTRAN 90 Routines of the Finite Difference Schemes Index References appear at the end of each chapter.

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Cena 365,00 PLN
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Szczegóły: Numerical Techniques for Direct and Large-eddy Simulations - Choi-Hong Lai, Xi Jiang

Tytuł: Numerical Techniques for Direct and Large-eddy Simulations
Autor: Choi-Hong Lai, Xi Jiang
Producent: CRC Press Inc.
ISBN: 9781420075786
Rok produkcji: 2008
Ilość stron: 276
Oprawa: Twarda
Waga: 0.61 kg


Recenzje: Numerical Techniques for Direct and Large-eddy Simulations - Choi-Hong Lai, Xi Jiang

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