The Numerical Modelling Of Nonlinear Stellar Pulsations

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The Numerical Modelling of Nonlinear Stellar Pulsations

J. Robert Buchler
The Numerical Modelling of Nonlinear Stellar Pulsations Book PDF

Author : J. Robert Buchler
Publisher : Springer Science & Business Media
Page : 372 pages
File Size : 48,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400905191

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The Numerical Modelling of Nonlinear Stellar Pulsations by J. Robert Buchler Pdf

This interdisciplinary meeting has brought together a group of astrophysicists with hands-on experience in the numerical computation of astrophysical fluid dynamics, in particular nonlinear stellar pulsations, and a group of applied mathematicians who are actively engaged with the development of novel and improved numerical methods. The goal of the workshop has been for the astrophysicists to discuss in detail the numerical problems encountered in the modelling of stellar pulsations and for the mathematicians to present a survey of recent developments in numerical techniques. This astrophysical-mathematical intercourse will help the astrophysicists in the future development of more reliable and efficient codes, on the one hand, and it has introduced the mathematicians to an unfamiliar area which is a tough testing ground for their techniques. Since the difficulties encountered are common to other fluid dynamics problems, and are in fact perhaps more severe, fluid dynamicists in other research areas may fmd the results of this workshop of interest as well. Much of our theoretical understanding of the intricate and interesting behavior of variable stars rests on our ability to perform accurate numerical hydrodynamical computations of stellar models. Extensive calculations of nonlinear radial stellar pulsations with the use of increasingly powerful computers are showing more and more clearly that the numerical codes in current use have serious deficiencies.

Nonlinear Phenomena in Stellar Variability

Mine Takeuti,J. Robert Buchler
Nonlinear Phenomena in Stellar Variability Book PDF

Author : Mine Takeuti,J. Robert Buchler
Publisher : Springer Science & Business Media
Page : 344 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401110624

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Nonlinear Phenomena in Stellar Variability by Mine Takeuti,J. Robert Buchler Pdf

The nonlinear theory of oscillating systems brings new aspects into the study of variable stars. Beyond the comparison of linear periods and the estimate of stability, the appearance and disappearance of possible modes can be studied in detail. While nonlinearity in stellar pulsations is not a very complicated concept, it generally requires extensive and sometimes so phisticated numerical studies. Therefore, the development of appropriate computational tools is required for applications of nonlinear theory to real phenomena in variable stars. Taking trends in variable star studies into consideration, the International Astronomical Union organized a colloquium for the nonlinear phenomena of variable stars at Mito, Japan in 1992. The colloquium served to give an overview of the new frontiers of variable star studies and to encourage further development of this field. The colloquium covered the fundamental theory, interesting observational facts, and the numerical modeling. The publication of the proceedings was somewhat delayed since one of the editors, M. T., was overwhelmed by administrative work. We are sorry that the excellent reviews of Drs. H. :Mori, M. Sano, and K. Makishima cannot be found in the proceedings. We also miss the summary given by Dr. W. W. Dziembowski. Throughout the editing procedure Dr. Y. Tanaka of Ibaraki University kindly helped us. Because of the unfortunate delay of the publication~ the significance of several papers may be affected. Even so, we believe that the papers are useful to variable star researchers because of their scientific importance.

Stellar Pulsation - Nonlinear Studies

Mine Takeuti,Dimitar D. Sasselov
Stellar Pulsation Nonlinear Studies Book PDF

Author : Mine Takeuti,Dimitar D. Sasselov
Publisher : Springer Science & Business Media
Page : 237 pages
File Size : 55,5 Mb
Release : 2013-03-09
Category : Science
ISBN : 9789401596985

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Stellar Pulsation - Nonlinear Studies by Mine Takeuti,Dimitar D. Sasselov Pdf

Stellar pulsations provide a complex system in stars. This complexity is studied by analyzing the non-sinusoidal, semi-regular, or irregular light curves. This unique volume summarizes the application of recent theoretical results obtained from stellar pulsation studies. In addition, the latest developments in hydrodynamic simulations are discussed. A historical sketch of the study of beat Cepheids, first known for their variable amplitudes, is given as an introduction to the book. This introduction clearly demonstrates how complicated the study of variable stars can be, and therefore challenges and invites the reader to study the entire book.

New Perspectives on Stellar Pulsation and Pulsating Variable Stars

James M. Nemec,Jaymie M. Matthews
New Perspectives on Stellar Pulsation and Pulsating Variable Stars Book PDF

Author : James M. Nemec,Jaymie M. Matthews
Publisher : Cambridge University Press
Page : 474 pages
File Size : 55,5 Mb
Release : 1993-10-21
Category : Science
ISBN : 0521443822

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New Perspectives on Stellar Pulsation and Pulsating Variable Stars by James M. Nemec,Jaymie M. Matthews Pdf

How can the interior of the Sun, white dwarfs and other stars be studied by stellar seismology? What can Doppler imaging tell us about high-degree pulsations? What impact are CCD and infrared observations having on extending the Cepheid and RR Lyrae distance scale? And how are other classes of pulsators providing independent checks of the distance scale? These and many other critical questions are answered in this timely review of the dramatic advances made in pulsating star research in the last decade. This survey collects together more than thirty comprehensive reviews and over one hundred summaries of research papers from the 139th IAU Colloquium, held in Victoria, British Columbia. Together these cover all aspects of recent developments in the field of variable star research and preview some of the exciting advances anticipated for the next decade. This volume provides an essential review for graduate students and researchers.

Mercury

A. Balogh,Leonid Ksanfomality,Rudolf von Steiger
Mercury Book PDF

Author : A. Balogh,Leonid Ksanfomality,Rudolf von Steiger
Publisher : Springer Science & Business Media
Page : 460 pages
File Size : 55,7 Mb
Release : 2008-02-23
Category : Science
ISBN : 9780387775395

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Mercury by A. Balogh,Leonid Ksanfomality,Rudolf von Steiger Pdf

This fascinating book reviews the progress made in Mercury studies since the flybys by Mariner 10 in 1974-75. Thus far, it is the only book on Mercury which balances a wide range of Earth-based observations, made under difficult conditions, with the only available space-based data. The text is based on continued research using the Mariner 10 archive, on observations from Earth, and on increasingly realistic models of this mysterious planet’s interior evolution.

Reports on Astronomy

Jacqueline Bergeron
Reports on Astronomy Book PDF

Author : Jacqueline Bergeron
Publisher : Springer Science & Business Media
Page : 603 pages
File Size : 50,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401111003

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Reports on Astronomy by Jacqueline Bergeron Pdf

IAU Transactions are published as a volume corresponding to each General Assembly. Volume A is produced prior to the Assembly and contains Reports on Astronomy, prepared by each Commission President. The intention is to summarize the astronomical results that have affected the work of the Commission since the production of the previous Reports up to a time which is about one year prior to the General Assembly. Volume B is produced after the Assembly and contains accounts of Commission Meetings which were held, together with other material. The reports included in the present volume range from outline summaries to lengthy compilations and references. Most reports are in English.

Cosmic Winds and the Heliosphere

Jack Randolph Jokipii,Charles P. Sonett,Mark S. Giampapa
Cosmic Winds and the Heliosphere Book PDF

Author : Jack Randolph Jokipii,Charles P. Sonett,Mark S. Giampapa
Publisher : University of Arizona Press
Page : 1060 pages
File Size : 53,5 Mb
Release : 1997-10
Category : Science
ISBN : 0816518254

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Cosmic Winds and the Heliosphere by Jack Randolph Jokipii,Charles P. Sonett,Mark S. Giampapa Pdf

Contributors examine the physics of wind origin and physical phenomena in winds, including heliospheric shocks, magnetohydrodynamic turbulence, and kinetic phenomena--and their interactions with surrounding media. Contributions range from studies of the interstellar cloud surrounding the solar system to solar wind interaction with comets.

Numerical Modeling of Coupled Phenomena in Science and Engineering

Mario César Suárez Arriaga,Jochen Bundschuh,Francisco Javier Dominguez-Mota
Numerical Modeling of Coupled Phenomena in Science and Engineering Book PDF

Author : Mario César Suárez Arriaga,Jochen Bundschuh,Francisco Javier Dominguez-Mota
Publisher : CRC Press
Page : 496 pages
File Size : 44,9 Mb
Release : 2008-12-01
Category : Technology & Engineering
ISBN : 9780203886229

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Numerical Modeling of Coupled Phenomena in Science and Engineering by Mario César Suárez Arriaga,Jochen Bundschuh,Francisco Javier Dominguez-Mota Pdf

Mathematics is a universal language. Differential equations, mathematical modeling, numerical methods and computation form the underlying infrastructure of engineering and the sciences. In this context mathematical modeling is a very powerful tool for studying engineering problems, natural systems and human society. This interdisciplinary book cont

Mass-Losing Pulsating Stars and their Circumstellar Matter

Y. Nakada,M. Honma,M. Seki
Mass Losing Pulsating Stars and their Circumstellar Matter Book PDF

Author : Y. Nakada,M. Honma,M. Seki
Publisher : Springer Science & Business Media
Page : 429 pages
File Size : 44,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401001397

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Mass-Losing Pulsating Stars and their Circumstellar Matter by Y. Nakada,M. Honma,M. Seki Pdf

Editing the proceedings of a scientific meeting is not an easy task. Sometimes people who give an excellent talk do not send the manuscript by the deadline. However, this time, thanks to the punctuality of all the participants, we have this excellent volume for the workshop on mass losing pulsating stars and their circumstellar matter prepared in time. Almost all of the oral presentations including the summary are collected in this volume. We regret that we cannot put in this volume a few posters that we failed to receive before the editorial work. The workshop was planned as a small meeting with less than fifty attendants because the city of Sendai was far from the most of the active institutions. However, the number of submitted papers exceeded the SOC's expectation; many interesting contributions had to be scheduled in the poster session. Still, the oral sessions were so tight that many participants might have felt frustrated for the shortage of discussions. The organizers of the workshop have to apologize to the attendants for the inconvenience caused from such a happy underestimate about the size of the workshop.

Cellular Automata: Prospects In Astrophysical Applications - Proceedings Of The Workshop On Cellular Automata Models For Astrophysical Phenomena

Lejeune A,Perdang J M
Cellular Automata Prospects In Astrophysical Applications Proceedings Of The Workshop On Cellular Automata Models For Astrophysical Phenomena Book PDF

Author : Lejeune A,Perdang J M
Publisher : World Scientific
Page : 416 pages
File Size : 42,5 Mb
Release : 1993-11-23
Category : Electronic
ISBN : 9789814553216

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Cellular Automata: Prospects In Astrophysical Applications - Proceedings Of The Workshop On Cellular Automata Models For Astrophysical Phenomena by Lejeune A,Perdang J M Pdf

This book provides a survey of the basic ideas of the cellular automaton (CA) modelling environment, emphasising the relevance of this framework to astrophysical applications. It contains introductory level lectures on lattice gases, and on CA turbulence, diffusion-reaction processes, percolation and self-organised criticality. Further, it gives a variety of astrophysical applications, including stellar oscillations, galactic evolution, distribution of luminous matter in the universe, etc.

Applying Fractals in Astronomy

Andre HECK,Jean M. Perdang
Applying Fractals in Astronomy Book PDF

Author : Andre HECK,Jean M. Perdang
Publisher : Springer Science & Business Media
Page : 217 pages
File Size : 47,6 Mb
Release : 2008-09-11
Category : Science
ISBN : 9783540475828

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Applying Fractals in Astronomy by Andre HECK,Jean M. Perdang Pdf

'Fractal geometry addressesitselfto questions that many people have been asking themselves. It con cerns an aspect of Nature that almost everybody had been conscious of, but could not address in a formal fashion. ' 'Fractal geometry seems to be the proper language to describe the complezity of many very compli cated shapes around us. ' (Mandelbrot, 1990a) 'I believe that fractals respond to a profound un easiness in man. ' (Mandelbrot, 1990b) The catchword fractal, ever since it was coined by Mandelbrot (1975) to refer to a class of abstract mathematical objects that were already known at the turn ofthe 19th century, has found an unprecedented resonance both inside and outside the scientific community. Fractal concepts, far more than the concepts of catastrophe theory introduced a few years earlier, are currently being applied not only in the physical sciences, but also in biology and medicine (Goldberger and West 1987). In the mid-eighties, Kadanoff (1986) asked the question: 'Why all the fuss about /ractals'! '. He offered a twofold answer: in the first place, it is 'because of the practical, technological importance of fractal objects'. Indeed he emphasised the relevance of these structures for materials scientists and oil drilling engineers, in search of structures with novel properties, or models for the flow of oil through the soil. His second answer was: 'Because of the intellectual interest of fractals '.

Computational Methods for Astrophysical Fluid Flow

Randall J. LeVeque,Dimitri Mihalas,E.A. Dorfi,Ewald Müller
Computational Methods for Astrophysical Fluid Flow Book PDF

Author : Randall J. LeVeque,Dimitri Mihalas,E.A. Dorfi,Ewald Müller
Publisher : Springer Science & Business Media
Page : 523 pages
File Size : 43,7 Mb
Release : 2006-04-18
Category : Science
ISBN : 9783540316329

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Computational Methods for Astrophysical Fluid Flow by Randall J. LeVeque,Dimitri Mihalas,E.A. Dorfi,Ewald Müller Pdf

This book leads directly to the most modern numerical techniques for compressible fluid flow, with special consideration given to astrophysical applications. Emphasis is put on high-resolution shock-capturing finite-volume schemes based on Riemann solvers. The applications of such schemes, in particular the PPM method, are given and include large-scale simulations of supernova explosions by core collapse and thermonuclear burning and astrophysical jets. Parts two and three treat radiation hydrodynamics. The power of adaptive (moving) grids is demonstrated with a number of stellar-physical simulations showing very crispy shock-front structures.

Hydrodynamic Characteristics and Pollutant Transport in Rivers and Nearshore Environments

Biyun Guo,XiuWen Cheng,Li Zhang,Xiaoning Zhao,Zengxin Zhang,Matteo Rubinato
Hydrodynamic Characteristics and Pollutant Transport in Rivers and Nearshore Environments Book PDF

Author : Biyun Guo,XiuWen Cheng,Li Zhang,Xiaoning Zhao,Zengxin Zhang,Matteo Rubinato
Publisher : Frontiers Media SA
Page : 122 pages
File Size : 47,8 Mb
Release : 2024-03-01
Category : Science
ISBN : 9782832545539

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Hydrodynamic Characteristics and Pollutant Transport in Rivers and Nearshore Environments by Biyun Guo,XiuWen Cheng,Li Zhang,Xiaoning Zhao,Zengxin Zhang,Matteo Rubinato Pdf

With the development of societies and economies, the process of industrialization and urban modernization is accelerating, urban populations are increasing, and more and more wastewater is generated and released. Large quantities of hazardous industrial and agricultural wastewater and domestic sewage are discharged directly into reservoirs, lakes, rivers and the sea, without adequate treatment. The wide range of pollutants discharged can degrade, interact, and transform in aquatic environments. When light, temperature, nutrients and other natural conditions are suitable, it is common for algal species to burst into bloom, causing serious damage to the ecological environment of the receiving water body. As the flux of river discharge into the sea increases year by year, the deterioration of coastal water environments accelerates. Meanwhile, variations in climate and vegetation impact basin hydrological proceses and river runoff into the sea.

Multibody Dynamics

Zdravko Terze
Multibody Dynamics Book PDF

Author : Zdravko Terze
Publisher : Springer
Page : 369 pages
File Size : 46,6 Mb
Release : 2014-06-26
Category : Technology & Engineering
ISBN : 9783319072609

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Multibody Dynamics by Zdravko Terze Pdf

By having its origin in analytical and continuum mechanics, as well as in computer science and applied mathematics, multibody dynamics provides a basis for analysis and virtual prototyping of innovative applications in many fields of contemporary engineering. With the utilization of computational models and algorithms that classically belonged to different fields of applied science, multibody dynamics delivers reliable simulation platforms for diverse highly-developed industrial products such as vehicle and railway systems, aeronautical and space vehicles, robotic manipulators, smart structures, biomechanical applications and nano-technologies. The chapters of this volume are based on the revised and extended versions of the selected scientific papers from amongst 255 original contributions that have been accepted to be presented within the program of the distinguished international ECCOMAS conference. It reflects state-of-the-art in the advances of multibody dynamics, providing excellent insight in the recent scientific developments in this prominent field of computational mechanics and contemporary engineering.

Innovative Methods for Numerical Solution of Partial Differential Equations

M M Hafez,J J Chattot
Innovative Methods for Numerical Solution of Partial Differential Equations Book PDF

Author : M M Hafez,J J Chattot
Publisher : World Scientific
Page : 416 pages
File Size : 44,5 Mb
Release : 2001-12-20
Category : Mathematics
ISBN : 9789814489591

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Innovative Methods for Numerical Solution of Partial Differential Equations by M M Hafez,J J Chattot Pdf

This book consists of 20 review articles dedicated to Prof. Philip Roe on the occasion of his 60th birthday and in appreciation of his original contributions to computational fluid dynamics. The articles, written by leading researchers in the field, cover many topics, including theory and applications, algorithm developments and modern computational techniques for industry. Contents:“A One-Sided View”: The Real Story (B van Leer)Collocated Upwind Schemes for Ideal MHD (K G Powell)The Penultimate Scheme for Systems of Conservation Laws: Finite Difference ENO with Marquina's Flux Splitting (R P Fedkiw et al.)A Finite Element Based Level-Set Method for Multiphase Flows (B Engquist & A-K Tornberg)The GHOST Fluid Method for Viscous Flows (R P Fedkiw & X-D Liu)Factorizable Schemes for the Equations of Fluid Flow (D Sidilkover)Evolution Galerkin Methods as Finite Difference Schemes (K W Morton)Fluctuation Distribution Schemes on Adjustable Meshes for Scalar Hyperbolic Equations (M J Baines)Superconvergent Lift Estimates Through Adjoint Error Analysis (M B Giles & N A Pierce)Somewhere between the Lax–Wendroff and Roe Schemes for Calculating Multidimensional Compressible Flows (A Lerat et al.)Flux Schemes for Solving Nonlinear Systems of Conservation Laws (J M Ghidaglia)A Lax–Wendroff Type Theorem for Residual Schemes (R Abgrall et al.)Kinetic Schemes for Solving Saint–Venant Equations on Unstructured Grids (M O Bristeau & B Perthame)Nonlinear Projection Methods for Multi-Entropies Navier–Stokes Systems (C Berthon & F Coquel)A Hybrid Fluctuation Splitting Scheme for Two-Dimensional Compressible Steady Flows (P De Palma et al.)Some Recent Developments in Kinetic Schemes Based on Least Squares and Entropy Variables (S M Deshpande)Difference Approximation for Scalar Conservation Law. Consistency with Entropy Condition from the Viewpoint of Oleinik's E-Condition (H Aiso)Lessons Learned from the Blast Wave Computation Using Overset Moving Grids: Grid Motion Improves the Resolution (K Fujii) Readership: Researchers and graduate students in numerical and computational mathematics in engineering. Keywords:Numerical Methods;Partial Differential Equations;Computational Fluid Dynamics (CFD);Conservation Laws;Kinetic Schemes;Upwinding