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Author: Gabriele Raabe Publisher: Springer ISBN: 9811035458 Category : Science Languages : en Pages : 324
Book Description
This book discusses the fundamentals of molecular simulation, starting with the basics of statistical mechanics and providing introductions to Monte Carlo and molecular dynamics simulation techniques. It also offers an overview of force-field models for molecular simulations and their parameterization, with a discussion of specific aspects. The book then summarizes the available know-how for analyzing molecular simulation outputs to derive information on thermophysical and structural properties. Both the force-field modeling and the analysis of simulation outputs are illustrated by various examples. Simulation studies on recently introduced HFO compounds as working fluids for different technical applications demonstrate the value of molecular simulations in providing predictions for poorly understood compounds and gaining a molecular-level understanding of their properties. This book will prove a valuable resource to researchers and students alike.
Author: Gabriele Raabe Publisher: Springer ISBN: 9811035458 Category : Science Languages : en Pages : 324
Book Description
This book discusses the fundamentals of molecular simulation, starting with the basics of statistical mechanics and providing introductions to Monte Carlo and molecular dynamics simulation techniques. It also offers an overview of force-field models for molecular simulations and their parameterization, with a discussion of specific aspects. The book then summarizes the available know-how for analyzing molecular simulation outputs to derive information on thermophysical and structural properties. Both the force-field modeling and the analysis of simulation outputs are illustrated by various examples. Simulation studies on recently introduced HFO compounds as working fluids for different technical applications demonstrate the value of molecular simulations in providing predictions for poorly understood compounds and gaining a molecular-level understanding of their properties. This book will prove a valuable resource to researchers and students alike.
Author: Publisher: ISBN: Category : Languages : en Pages : 148
Book Description
There are many tools available to measure the thermophysical properties of compounds. Experimental measurements have been evolving for many years and are very accurate at determining the properties of most compounds. However, many of the measurements are unreliable when the compound of interest is thermally unstable. Throughout the years molecular simulation techniques have been developed to understand the thermophysical properties of thermally unstable compounds. There are primarily two methods to study Vapor-Liquid Equilibrium by molecular simulation Gibbs Ensemble Monte Carlo and Molecular Dynamics. MD is a technique that allows one to simulate the vapor and the liquid in the same simulation cell. The advantage to having the vapor and liquid in the same simulation cell is that an interface forms and properties not available by GEMC can be investigated. However, the inclusion of the interface complicates the determination of the phase densities. There are two methods available in the literature to determine the phase densities from a two-phase MD simulation. The first utilizes a hyperbolic tangent function to fit the density profile across the axis normal to the interface. The second method calculates the average of a local property spatially and then determines the resulting distribution function. The distribution function is used to determine the phases from user defined phase cut-offs. These methods only work well far from the critical point and have many adjustable parameters. These adjustable parameters make it difficult to reliably obtain accurate results. This lack of reliability is one of the main driving forces behind this dissertation. In order to correct the limitations of previous methods, a new technique is presented and tested against three cases. The new technique utilizes Voronoi tessellations to calculate the volume of every molecule in the simulation cell. The molecular volumes generated can be interpreted by simple statistical parameters such as the mean and variance to determine the density on the two phase envelope. In this dissertation a new method is presented and applied to three test cases, a simple fluid, and two polyatomic cases.
Author: Aamir Shahzad Publisher: BoD – Books on Demand ISBN: 1789848881 Category : Science Languages : en Pages : 134
Book Description
This book assists in the exchange of research and progress outcomes concerned with the latest issues in thermophysical properties (TPPs) of complex liquids research, development, and production. Topics cover the control of transport properties of metallic alloys, thermal analysis of complex plasmas and instabilities in plasma devices, thermophysical properties at nanolevel, theoretical background of viscosities of hydrocarbons at varying temperature and pressure ranges, molecular modeling, and experimental investigations based on nanofluids and ionic conduction in solid-state electrolytes for thermodynamic data. This book enables global researchers to tackle the challenges that continue to generate cost-effective TPPs and the latest understanding in the development of complex materials and the collaboration of modern thermophysical generating technologies. Moreover, it provides a platform for different regional authors to exchange scientific knowledge and generate enthusiasm for science and technology.
Author: Kholmirzo Kholmurodov Publisher: Nova Publishers ISBN: 9781594546075 Category : Science Languages : en Pages : 212
Book Description
Book & CD. Computer molecular simulations of complex multi-particle systems play a fascinating role in fundamental physics, biochemical and life sciences. Having an increasingly significant impact on many applied industries, especially in modern biophysical and nanotechnological areas, molecular simulation provides a set of tools for predicting many functional properties of molecular systems. The chemical, pharmaceutical, materials and related industries -- all share the computer molecular simulation methods. The molecular simulation studies cover different fields of either biological processes -- protein folding and electron densities of DNA and proteins, or thin film formations and surface-cluster phenomena in nanoelectronics, synthetic copolymers and biopolymer design in biochemistry, so on. Practically all of the world's present supercomputers and many specially developed high performance computing clusters over the world are performing molecular simulations or are aimed on these needs. This book presents leading international research in this dynamic field.
Author: Daan Frenkel Publisher: Elsevier ISBN: 0080519989 Category : Science Languages : en Pages : 661
Book Description
Understanding Molecular Simulation: From Algorithms to Applications explains the physics behind the "recipes" of molecular simulation for materials science. Computer simulators are continuously confronted with questions concerning the choice of a particular technique for a given application. A wide variety of tools exist, so the choice of technique requires a good understanding of the basic principles. More importantly, such understanding may greatly improve the efficiency of a simulation program. The implementation of simulation methods is illustrated in pseudocodes and their practical use in the case studies used in the text. Since the first edition only five years ago, the simulation world has changed significantly -- current techniques have matured and new ones have appeared. This new edition deals with these new developments; in particular, there are sections on: Transition path sampling and diffusive barrier crossing to simulaterare events Dissipative particle dynamic as a course-grained simulation technique Novel schemes to compute the long-ranged forces Hamiltonian and non-Hamiltonian dynamics in the context constant-temperature and constant-pressure molecular dynamics simulations Multiple-time step algorithms as an alternative for constraints Defects in solids The pruned-enriched Rosenbluth sampling, recoil-growth, and concerted rotations for complex molecules Parallel tempering for glassy Hamiltonians Examples are included that highlight current applications and the codes of case studies are available on the World Wide Web. Several new examples have been added since the first edition to illustrate recent applications. Questions are included in this new edition. No prior knowledge of computer simulation is assumed.
Author: Richard J. Sadus Publisher: Elsevier ISBN: 0323910556 Category : Science Languages : en Pages : 617
Book Description
Molecular simulation allows researchers unique insight into the structures and interactions at play in fluids. Since publication of the first edition of Molecular Simulation of Fluids, novel developments in theory, algorithms and computer hardware have generated enormous growth in simulation capabilities. This 2nd edition has been fully updated and expanded to highlight this recent progress, encompassing both Monte Carlo and molecular dynamic techniques, and providing details of theory, algorithms and both serial and parallel implementations. Beginning with a clear introduction and review of theoretical foundations, the book goes on to explore intermolecular potentials before discussing the calculation of molecular interactions in more detail. Monte Carlo simulation and integrators for molecular dynamics are then discussed further, followed by non-equilibrium molecular dynamics and molecular simulation of ensembles and phase equilibria. The use of object-orientation is examined in detail, with working examples coded in C++. Finally, practical parallel simulation algorithms are discussed using both MPI and GPUs, with the latter coded in CUDA. Drawing on the extensive experience of its expert author, Molecular Simulation of Fluids: Theory, Algorithms, Object-Orientation, and Parallel Computing 2nd Edition is a practical, accessible guide to this complex topic for all those currently using, or interested in using, molecular simulation to study fluids. Fully updated and revised to reflect advances in the field, including new chapters on intermolecular potentials and parallel algorithms Covers the application of both MPI and GPU programming to molecular simulation Covers a wide range of simulation topics using both Monte Carlo and molecular dynamics approaches Provides access to downloadable simulation code, including GPU code using CUDA, to encourage practice and support learning
Author: Saman Alavi Publisher: John Wiley & Sons ISBN: 3527699465 Category : Technology & Engineering Languages : en Pages : 414
Book Description
Provides hands-on knowledge enabling students of and researchers in chemistry, biology, and engineering to perform molecular simulations This book introduces the fundamentals of molecular simulations for a broad, practice-oriented audience and presents a thorough overview of the underlying concepts. It covers classical mechanics for many-molecule systems as well as force-field models in classical molecular dynamics; introduces probability concepts and statistical mechanics; and analyzes numerous simulation methods, techniques, and applications. Molecular Simulations: Fundamentals and Practice starts by covering Newton's equations, which form the basis of classical mechanics, then continues on to force-field methods for modelling potential energy surfaces. It gives an account of probability concepts before subsequently introducing readers to statistical and quantum mechanics. In addition to Monte-Carlo methods, which are based on random sampling, the core of the book covers molecular dynamics simulations in detail and shows how to derive critical physical parameters. It finishes by presenting advanced techniques, and gives invaluable advice on how to set up simulations for a diverse range of applications. -Addresses the current need of students of and researchers in chemistry, biology, and engineering to understand and perform their own molecular simulations -Covers the nitty-gritty ? from Newton's equations and classical mechanics over force-field methods, potential energy surfaces, and probability concepts to statistical and quantum mechanics -Introduces physical, chemical, and mathematical background knowledge in direct relation with simulation practice -Highlights deterministic approaches and random sampling (eg: molecular dynamics versus Monte-Carlo methods) -Contains advanced techniques and practical advice for setting up different simulations to prepare readers entering this exciting field Molecular Simulations: Fundamentals and Practice is an excellent book benefitting chemist, biologists, engineers as well as materials scientists and those involved in biotechnology.
Author: Randall Q Snurr Publisher: Springer ISBN: 9811011281 Category : Technology & Engineering Languages : en Pages : 176
Book Description
This book is a collection of select proceedings of the FOMMS 2015 conference. FOMMS 2015 was the sixth triennial FOMMS conference showcasing applications of theory of computational quantum chemistry, molecular science, and engineering simulation. The theme of the 2015 meeting was on Molecular Modeling and the Materials Genome. This volume comprises chapters on many distinct applications of molecular modeling techniques. The content will be useful to researchers and students alike.