Numerical Modelling of Astrophysical Turbulence

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Publisher : Springer Science & Business Media
ISBN 13 : 3319014757
Total Pages : 90 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Numerical Modelling of Astrophysical Turbulence by : Wolfram Schmidt

Download or read book Numerical Modelling of Astrophysical Turbulence written by Wolfram Schmidt and published by Springer Science & Business Media. This book was released on 2013-09-20 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this "SpringerBrief" the author considers the underlying problems and questions that are common to numerical models of turbulence in different astrophysical systems. Turbulence has emerged as an important research topic in several areas of astrophysics. Understanding and modeling turbulence is particularly important for the dynamics of the interstellar medium, but also for the intergalactic medium, as well as in stars. The advancement of methods for numerical simulations of astrophysical turbulence, however, is still challenging because of gravity, strong compressibility, magnetic fields, and other effects. The book begins with a review of general aspects of numerical simulations of turbulence. In the main part the author presents findings from his numerical studies on astrophysical turbulence and discusses the astrophysical implications. He also explains in detail the numerical schemes utilized. Readers will find that this book offers a compact yet comprehensive introduction.

Turbulence and Self-Organization

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Publisher : Springer Science & Business Media
ISBN 13 : 1461451558
Total Pages : 682 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Turbulence and Self-Organization by : Mikhail Ya Marov

Download or read book Turbulence and Self-Organization written by Mikhail Ya Marov and published by Springer Science & Business Media. This book was released on 2013-01-16 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the development of continual models of turbulent natural media. Such models serve as a ground for the statement and numerical evaluation of the key problems of the structure and evolution of the numerous astrophysical and geophysical objects. The processes of ordering (self-organization) in an originally chaotic turbulent medium are addressed and treated in detail with the use of irreversible thermodynamics and stochastic dynamics approaches which underlie the respective models. Different examples of ordering set up in the natural environment and outer space are brought and thoroughly discussed, the main focus being given to the protoplanetary discs formation and evolution.

Turbulence: Numerical Analysis, Modelling and Simulation

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Author :
Publisher : MDPI
ISBN 13 : 3038428094
Total Pages : 229 pages
Book Rating : 4.0/5 (384 download)

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Book Synopsis Turbulence: Numerical Analysis, Modelling and Simulation by : William Layton

Download or read book Turbulence: Numerical Analysis, Modelling and Simulation written by William Layton and published by MDPI. This book was released on 2018-05-04 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Turbulence: Numerical Analysis, Modelling and Simulation" that was published in Fluids

Turbulence and Magnetic Fields in Astrophysics

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Publisher : Springer
ISBN 13 : 354036238X
Total Pages : 468 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Turbulence and Magnetic Fields in Astrophysics by : Edith Falgarone

Download or read book Turbulence and Magnetic Fields in Astrophysics written by Edith Falgarone and published by Springer. This book was released on 2008-01-11 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains review articles of most of the topics addressed at the conf- ence on Simulations of Magnetohydrodynamic turbulence in astrophysics: recent achievements and perspectives which took place from July 2 to 6, 2001 at the Institut Henri Poincar ́e in Paris. We made the choice to publish these lectures in a tutorial form so that they can be read by a broad audience. As a result, this book does not give an exhaustive view of all the subjects addressed during the conference. The main objective of this workshop which gathered about 90 scientists from di?erent ?elds, was to present and confront recent results on the topic of t- bulence in magnetized astrophysical environments. A second objective was to discuss the latest generation of numerical codes, such as those using adaptive mesh re?nement (AMR) techniques. During a plenary discussion at the end of the workshop discussions were held on several topics, often at the heart of vivid controversies. Topics included the timescale for the dissipation of magneto-hydrodynamical (MHD) turbulence, the role of boundary conditions, the characteristics of imbalanced turbulence, the validity of the polytropic approach to Alfv ́en waves support within interst- lar clouds, the source of turbulence inside clouds devoid of stellar activity, the timescale for star formation, the Alfv ́en Mach number of interstellar gas motions, the formation process for helical ?elds in the interstellar medium. The impact of small upon large scales was also discussed.

Turbulence in Fluids

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Author :
Publisher : Springer
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Turbulence in Fluids by : Marcel Lesieur

Download or read book Turbulence in Fluids written by Marcel Lesieur and published by Springer. This book was released on 1987-03-31 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Turbulence

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Author :
Publisher : Cambridge Int Science Publishing
ISBN 13 : 1904602223
Total Pages : 294 pages
Book Rating : 4.9/5 (46 download)

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Book Synopsis Turbulence by : O. M. Belotserkovskii

Download or read book Turbulence written by O. M. Belotserkovskii and published by Cambridge Int Science Publishing. This book was released on 2005 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the results of numerical experiments carried out to examine the problem of development of turbulence and convection. On the basis of the results, they propose a physical model of the development of turbulence. Numerical algorithms and difference schema for carrying out numerical experiments in hydrodynamics, are proposed. Original algorithms, suitable for calculation of the development of the processes of turbulence and convection in different conditions, even on astrophysical objects, are presented. The results of numerical modelling of several important phenomena having both fundamental and applied importance are described.

Turbulence in Magnetohydrodynamics

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Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110263289
Total Pages : 286 pages
Book Rating : 4.1/5 (12 download)

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Book Synopsis Turbulence in Magnetohydrodynamics by : Andrey Beresnyak

Download or read book Turbulence in Magnetohydrodynamics written by Andrey Beresnyak and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-07-08 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetohydrodynamics describes dynamics in electrically conductive fluids. These occur in our environment as well as in our atmosphere and magnetosphere, and play a role in the sun's interaction with our planet. In most cases these phenomena involve turbulences, and thus are very challenging to understand and calculate. A sound knowledge is needed to tackle these problems. This work gives the basic information on turbulence in nature, comtaining the needed equations, notions and numerical simulations. The current state of our knowledge and future implications of MHD turbulence are outlined systematically. It is indispensable for all scientists engaged in research of our atmosphere and in space science.

Astrophysical Turbulence and Convection

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Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.X/5 (4 download)

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Book Synopsis Astrophysical Turbulence and Convection by : J. Robert Buchler

Download or read book Astrophysical Turbulence and Convection written by J. Robert Buchler and published by . This book was released on 2000 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence and convection are phenomena the existence of which has haunted astrophysicists because they pose such extremely difficult problems. The papers in this volume are taken from a conference held in February 1999 which brought together representatives of four different viewpoints: the computational physicist's numerical three-dimensional large-eddy simulations; theorists, who wish to simplify the equations into approximate, but useful one-dimensional recipes; astrophysicists, who see turbulence and convection as a subroutine; and experimentalists, who provide insights into what really happens at molecular levels in space - and keep everyone else honest.

Magnetohydrodynamic Turbulence

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Author :
Publisher : Cambridge University Press
ISBN 13 : 1139441671
Total Pages : 313 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Magnetohydrodynamic Turbulence by : Dieter Biskamp

Download or read book Magnetohydrodynamic Turbulence written by Dieter Biskamp and published by Cambridge University Press. This book was released on 2003-07-31 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an introduction to, and modern account of, magnetohydrodynamic (MHD) turbulence, an active field both in general turbulence theory and in various areas of astrophysics. The book starts by introducing the MHD equations, certain useful approximations and the transition to turbulence. The second part of the book covers incompressible MHD turbulence, the macroscopic aspects connected with the different self-organization processes, the phenomenology of the turbulence spectra, two-point closure theory, and intermittency. The third considers two-dimensional turbulence and compressible (in particular, supersonic) turbulence. Because of the similarities in the theoretical approach, these chapters start with a brief account of the corresponding methods developed in hydrodynamic turbulence. The final part of the book is devoted to astrophysical applications: turbulence in the solar wind, in accretion disks, and in the interstellar medium. This book is suitable for graduate students and researchers working in turbulence theory, plasma physics and astrophysics.

Interstellar Turbulence

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Publisher : Cambridge University Press
ISBN 13 : 9780521651318
Total Pages : 304 pages
Book Rating : 4.6/5 (513 download)

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Book Synopsis Interstellar Turbulence by : José Franco

Download or read book Interstellar Turbulence written by José Franco and published by Cambridge University Press. This book was released on 1999-05-28 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely volume presents a series of review articles covering every aspect of interstellar turbulence--from accretion disks, molecular clouds, atomic and ionized media, through to spiral galaxies - based on a major international conference held in Mexico City.With advances in observational techniques and the development of more efficient computer codes and faster computers, research in this area has made spectacular progress in recent years. This book provides a comprehensive overview of the most important developments in observing and modelling turbulent flows in the cosmos. It provides graduate student and researchers with a state-of-the-art summary of observational, theoretical and computational research in interstellar turbulence.

Astrophysical Radiation Hydrodynamics

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Publisher : Springer Science & Business Media
ISBN 13 : 9400947542
Total Pages : 588 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Astrophysical Radiation Hydrodynamics by : Karl-Heinz A. Winkler

Download or read book Astrophysical Radiation Hydrodynamics written by Karl-Heinz A. Winkler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NATO Advanced Research Workshop was devoted to the pre sentation, evaluation, and critical discussion of numerical methods in nonrelativistic and relativistic hydrodynamics, radia tive transfer, and radiation-coupled hydrodynamics. The unifying theme of the lectures was the successful application of these methods to challenging problems in astrophysics. The workshop was subdivided into 3 somewhat independent topics, each with their own subtheme. Under the heading radiation hydrodynamics were brought together context, theory, methodology, and application of radia tive transfer and radiation hydrodynamics in astrophysics. The intimate coupling between astronomy and radiation physics was underscored by examples from past and present research. Frame-dependence of both the equation of transfer (plus moments) and the underlying radiation quantities was discussed and clarified. Limiting regimes in radiation-coupled flow were identified and described; the dynamic diffusion regime received special emphasis. Numerical methods for continuum and line transfer equations in a given background were presented. Two examples of methods for computing dynamically coupled radia tion/matter fields were given. In l-d and assuming LTE the complete equations of radiation hydrodynamics can be solved with current computers. Such is not the case in 2- or 3-d, which were identified as target areas for research. The use of flux-limiters was vigorously discussed in this connection, and enlivened the meeting.

Star Formation in Galaxy Evolution: Connecting Numerical Models to Reality

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Author :
Publisher : Springer
ISBN 13 : 3662478900
Total Pages : 365 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Star Formation in Galaxy Evolution: Connecting Numerical Models to Reality by : Nickolay Y. Gnedin

Download or read book Star Formation in Galaxy Evolution: Connecting Numerical Models to Reality written by Nickolay Y. Gnedin and published by Springer. This book was released on 2015-09-09 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the elaborated and updated versions of the 24 lectures given at the 43rd Saas-Fee Advanced Course. Written by four eminent scientists in the field, the book reviews the physical processes related to star formation, starting from cosmological down to galactic scales. It presents a detailed description of the interstellar medium and its link with the star formation. And it describes the main numerical computational techniques designed to solve the equations governing self-gravitating fluids used for modelling of galactic and extra-galactic systems. This book provides a unique framework which is needed to develop and improve the simulation techniques designed for understanding the formation and evolution of galaxies. Presented in an accessible manner it contains the present day state of knowledge of the field. It serves as an entry point and key reference to students and researchers in astronomy, cosmology, and physics.

Structure Formation in Astrophysics

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Publisher : Cambridge University Press
ISBN 13 : 0521887798
Total Pages : 455 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Structure Formation in Astrophysics by : Gilles Chabrier

Download or read book Structure Formation in Astrophysics written by Gilles Chabrier and published by Cambridge University Press. This book was released on 2009-01-15 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique reference for graduate students and researchers addressing common problems and methods in studying galaxy, star and planet formation.

From the Outer Heliosphere to the Local Bubble

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Publisher : Springer
ISBN 13 : 1441902473
Total Pages : 478 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis From the Outer Heliosphere to the Local Bubble by : J.L. Linsky

Download or read book From the Outer Heliosphere to the Local Bubble written by J.L. Linsky and published by Springer. This book was released on 2009-04-29 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge about the outer heliosphere and the interstellar medium, which were long treated as two separate fields, has improved dramatically over the past 25 years as a consequence of recent developments: The discovery of interstellar pickup ions and neutral helium inside the heliosphere, the determination of the interstellar hydrogen distribution in the heliosphere obtained using backscattered solar Lyman-alpha radiation, the prediction and subsequent detection of the hydrogen wall just outside of the heliopause, the development of detailed global models for the interaction of solar wind plasma with the interstellar medium, and most recently, direct in-situ plasma and field measurements inside of the heliosheath. At the same time, our understanding of the nearby galactic environment, including the composition and dynamics of the warm gas clouds and hot gas in the local bubble, has benefited greatly from absorption-line spectroscopy using nearby stars as background sources and dynamic modeling. The present volume provides a synopsis of these developments organised into seven sections: Dominant physical processes in the termination shock and heliosheath, three-dimensional shape and structure of the dynamic heliosphere, relation of the plasmas and dust inside and outside of the heliosphere, origin and properties of the very local interstellar medium, energy and pressure equilibria in the local bubble, physical processes in the multiphase interstellar medium inside of the local bubble, and the roles that magnetic fields play in the outer heliosphere and the local bubble. The last theme is probably the most basic of all as magnetic fields play important roles in most of the phenomena discussed here. The volume concludes with four papers providing the "big picture" by looking at the time evolution of both the heliosphere and the local bubble, looking beyond the local bubble, and finally addressing the challenges in modeling the interface between the two media.

Turbulence and Magnetic Fields in Astrophysics

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Author :
Publisher : Springer
ISBN 13 : 9783540002741
Total Pages : 468 pages
Book Rating : 4.0/5 (27 download)

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Book Synopsis Turbulence and Magnetic Fields in Astrophysics by : Edith Falgarone

Download or read book Turbulence and Magnetic Fields in Astrophysics written by Edith Falgarone and published by Springer. This book was released on 2003-03-11 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains review articles of most of the topics addressed at the conf- ence on Simulations of Magnetohydrodynamic turbulence in astrophysics: recent achievements and perspectives which took place from July 2 to 6, 2001 at the Institut Henri Poincar ́e in Paris. We made the choice to publish these lectures in a tutorial form so that they can be read by a broad audience. As a result, this book does not give an exhaustive view of all the subjects addressed during the conference. The main objective of this workshop which gathered about 90 scientists from di?erent ?elds, was to present and confront recent results on the topic of t- bulence in magnetized astrophysical environments. A second objective was to discuss the latest generation of numerical codes, such as those using adaptive mesh re?nement (AMR) techniques. During a plenary discussion at the end of the workshop discussions were held on several topics, often at the heart of vivid controversies. Topics included the timescale for the dissipation of magneto-hydrodynamical (MHD) turbulence, the role of boundary conditions, the characteristics of imbalanced turbulence, the validity of the polytropic approach to Alfv ́en waves support within interst- lar clouds, the source of turbulence inside clouds devoid of stellar activity, the timescale for star formation, the Alfv ́en Mach number of interstellar gas motions, the formation process for helical ?elds in the interstellar medium. The impact of small upon large scales was also discussed.

Numerical Experiments in Homogeneous Turbulence

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Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Numerical Experiments in Homogeneous Turbulence by : Robert Sugden Rogallo

Download or read book Numerical Experiments in Homogeneous Turbulence written by Robert Sugden Rogallo and published by . This book was released on 1981 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Turbulence: Numerical Analysis, Modelling and Simulation

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Author :
Publisher :
ISBN 13 : 9783038428107
Total Pages : 1 pages
Book Rating : 4.4/5 (281 download)

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Book Synopsis Turbulence: Numerical Analysis, Modelling and Simulation by : William Layton

Download or read book Turbulence: Numerical Analysis, Modelling and Simulation written by William Layton and published by . This book was released on 2018 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbulence: Numerical Analysis, Modelling and Simulation.