Granular Gas Dynamics

Granular Gas Dynamics PDF Author: Thorsten Pöschel
Publisher: Springer Science & Business Media
ISBN: 9783540201106
Category : Science
Languages : en
Pages : 394

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Book Description
The contributions in this book address both the kinetic approach one using the Boltzmann equation for dissipative gases as well as the less established hydrodynamic description. The last part of the book is devoted to driven granular gases and their analogy with molecular fluids.

Granular Gas Dynamics

Granular Gas Dynamics PDF Author: Thorsten Pöschel
Publisher: Springer Science & Business Media
ISBN: 9783540201106
Category : Science
Languages : en
Pages : 394

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Book Description
The contributions in this book address both the kinetic approach one using the Boltzmann equation for dissipative gases as well as the less established hydrodynamic description. The last part of the book is devoted to driven granular gases and their analogy with molecular fluids.

Granular Gas Dynamics

Granular Gas Dynamics PDF Author: Thorsten Poschel
Publisher:
ISBN: 9783662144015
Category :
Languages : en
Pages : 384

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Book Description


Granular Gases

Granular Gases PDF Author: Thorsten Pöschel
Publisher: Springer Science & Business Media
ISBN: 3540414584
Category : Science
Languages : en
Pages : 454

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Book Description
"Granular Gases" are diluted many-particle systems in which the mean free path of the particles is much larger than the typical particle size, and where particle collisions occur dissipatively. The dissipation of kinetic energy can lead to effects such as the formation of clusters, anomalous diffusion and characteristic shock waves to name but a few. The book is organized as follows: Part I comprises the rigorous theoretical results for the dilute limit. The detailed properties of binary collisions are described in Part II. Part III contains experimental investigations of granular gases. Large-scale behaviour as found in astrophysical systems is discussed in Part IV. Part V, finally, deals with possible generalizations for dense granular systems.

Kinetic Theory of Granular Gases

Kinetic Theory of Granular Gases PDF Author: Nikolai V. Brilliantov
Publisher: Oxford University Press
ISBN: 0199588139
Category : Science
Languages : en
Pages : 343

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Book Description
In contrast to molecular gases (for example, air), the particles of granular gases, such as a cloud of dust, lose part of their kinetic energy when they collide, giving rise to many exciting physical properties. The book provides a self-contained introduction to the theory of granular gases for advanced undergraduates and beginning graduates.

Rarefied Gas Dynamics

Rarefied Gas Dynamics PDF Author: Lei Wu
Publisher: Springer Nature
ISBN: 981192872X
Category : Science
Languages : en
Pages : 293

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Book Description
This book highlights a comprehensive description of the numerical methods in rarefied gas dynamics, which has strong applications ranging from space vehicle re-entry, micro-electromechanical systems, to shale gas extraction. The book consists of five major parts: The fast spectral method to solve the Boltzmann collision operator for dilute monatomic gas and the Enskog collision operator for dense granular gas; The general synthetic iterative scheme to solve the kinetic equations with the properties of fast convergence and asymptotic preserving; The kinetic modeling of monatomic and molecular gases, and the extraction of critical gas parameters from the experiment of Rayleigh-Brillouin scattering; The assessment of the fluid-dynamics equations derived from the Boltzmann equation and typical kinetic gas-surface boundary conditions; The applications of the fast spectral method and general synthetic iterative scheme to reveal the dynamics in some canonical rarefied gas flows. The book is suitable for postgraduates and researchers interested in rarefied gas dynamics and provides many numerical codes for them to begin with.

Granular Physics

Granular Physics PDF Author: Anita Mehta
Publisher: Cambridge University Press
ISBN: 1139465317
Category : Science
Languages : en
Pages : 274

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Book Description
The field of granular physics has burgeoned since its development in the late 1980s, when physicists first began to use statistical mechanics to study granular media. They are prototypical of complex systems, manifesting metastability, hysteresis and bistability, and a range of other fascinating phenomena. This 2007 book is a wide-ranging account of developments in granular physics, and lays out the foundations of the statics and dynamics of granular physics. It covers a wide range of subfields, ranging from fluidisation to jamming, and these are modelled through a range of computer simulation and theoretical approaches. Written with an eye to pedagogy and completeness, this book will be valuable asset to any researcher in this field. The book also contains contributions from Professor Sir Sam Edwards, with Dr Raphael Blumenfeld, Professor Isaac Goldhirsch and Professor Philippe Claudin.

Kinetic Theory of Granular Gases

Kinetic Theory of Granular Gases PDF Author: Nikolai V. Brilliantov
Publisher: OUP Oxford
ISBN: 0191523917
Category : Science
Languages : en
Pages : 344

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Book Description
"Kinetic Theory of Granular Gases" provides an introduction to the rapidly developing theory of dissipative gas dynamics - a theory which has mainly evolved over the last decade. The book is aimed at readers from the advanced undergraduate level upwards and leads on to the present state of research. Throughout, special emphasis is put on a microscopically consistent description of pairwise particle collisions which leads to an impact-velocity-dependent coefficient of restitution. The description of the many-particle system, based on the Boltzmann equation, starts with the derivation of the velocity distribution function, followed by the investigation of self-diffusion and Brownian motion. Using hydrodynamical methods, transport processes and self-organized structure formation are studied. An appendix gives a brief introduction to event-driven molecular dynamics. A second appendix describes a novel mathematical technique for derivation of kinetic properties, which allows for the application of computer algebra. The text is self-contained, requiring no mathematical or physical knowledge beyond that of standard physics undergraduate level. The material is adequate for a one-semester course and contains chapter summaries as well as exercises with detailed solutions. The molecular dynamics and computer-algebra programs can be downloaded from a companion web page.

Advances in Kinetic Theory and Computing

Advances in Kinetic Theory and Computing PDF Author: B. Perthame
Publisher: World Scientific
ISBN: 9789810216719
Category : Mathematics
Languages : en
Pages : 232

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Book Description
This selection of 8 papers discusses ?Equations of Kinetic Physics? with emphasis on analysis, modelling and computing. The first 3 papers are on numerical methods for Vlasov-Poisson and Vlasov-Maxwell Equations ? Comparison between Particles and Eulerian Methods (G Manfredi and M R Feix), Computing BGK Instability with Eulerian Codes (M R Feix, Pertrand & A Ghieco) and Coupling Particles and Eulerian Methods (S Mas-Gallic and P A Raviart) ? Followed by a survey of kinetic and macroscopic models for semiconductor devices ? Boltzmann Equation, Drift-Diffusion Models (F Poupaud). In addition, there are 2 papers on the modelling and analysis of singular perturbation problems arising in plasma physics ? Derivation of the Child-Lagmuyr Emission Laws (P Degond) and Euler Models with Small Pressure Terms (F Bouchut) ? followed by two papers on the analysis and numerical analysis of the Boltzmann equations ? Symmetry Properties in the Polynomials Arising in Chapman-Enskog Expansion (L Desvillettes and F Golse) and A General Introduction to Computing the Boltzmann Equations with Random Particle Methods (B Perthame).

Granular Dynamics, Contact Mechanics and Particle System Simulations

Granular Dynamics, Contact Mechanics and Particle System Simulations PDF Author: Colin Thornton
Publisher: Springer
ISBN: 3319187112
Category : Science
Languages : en
Pages : 202

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Book Description
This book is devoted to the Discrete Element Method (DEM) technique, a discontinuum modelling approach that takes into account the fact that granular materials are composed of discrete particles which interact with each other at the microscale level. This numerical simulation technique can be used both for dispersed systems in which the particle-particle interactions are collisional and compact systems of particles with multiple enduring contacts. The book provides an extensive and detailed explanation of the theoretical background of DEM. Contact mechanics theories for elastic, elastic-plastic, adhesive elastic and adhesive elastic-plastic particle-particle interactions are presented. Other contact force models are also discussed, including corrections to some of these models as described in the literature, and important areas of further research are identified. A key issue in DEM simulations is whether or not a code can reliably simulate the simplest of systems, namely the single particle oblique impact with a wall. This is discussed using the output obtained from the contact force models described earlier, which are compared for elastic and inelastic collisions. In addition, further insight is provided for the impact of adhesive particles. The author then moves on to provide the results of selected DEM applications to agglomerate impacts, fluidised beds and quasi-static deformation, demonstrating that the DEM technique can be used (i) to mimic experiments, (ii) explore parameter sweeps, including limiting values, or (iii) identify new, previously unknown, phenomena at the microscale. In the DEM applications the emphasis is on discovering new information that enhances our rational understanding of particle systems, which may be more significant than developing a new continuum model that encompasses all microstructural aspects, which would most likely prove too complicated for practical implementation. The book will be of interest to academic and industrial researchers working in particle technology/process engineering and geomechanics, both experimentalists and theoreticians.

Rarefied Gas Dynamics

Rarefied Gas Dynamics PDF Author:
Publisher:
ISBN:
Category : Rarefied gas dynamics
Languages : en
Pages : 1212

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Book Description