Interdisciplinary Aspects of Turbulence

ISBN-13: 9783642097737 / Angielski / Miękka / 2010 / 340 str.

Wolfgang Hillebrandt;Friedrich Kupka

Opis

What do combustion engines, fusion reactors, weather forecast, ocean ?ows, our sun, and stellar explosions in outer space have in common? Of course, the physics and the length and time scales are vastly di?erent in all cases, but it is alsowellknownthatinallofthem, onsomerelevantlengthscales, thematerial ?ows that govern the dynamical and/or secular evolution of the systems are chaotic and often unpredictable: they are said to be turbulent. In fact, the term turbulence is used for an enormous variety of p- nomena in very di?erent ?elds, including geophysics, astrophysics, and - gineering. Unfortunately, these communities do not talk to each other too often. Therefore, back in 2005, we organized a workshop on Interdis- plinary Aspects of Turbulence at the Ringberg Castle in the Bavarian Alps, to discuss topics such as the basic concepts of turbulence, the di?- ent approaches of modelling and simulations used in the various areas, and also possible tests. This workshop was a great success and the proceedings can be found on the Internet (www.mpa-garching.mpg.de/mpa/publications/ proceedings/proceedings-en.html) as well as pdf-?les of several of the talks presented (www.mpa-garching.mpg.de/hydro/Turbulence/)."

Spis treści

An Introduction to Turbulence.- Nonextensive Statistical Mechanics and Nonlinear Dynamics.- Turbulent Convection and Numerical Simulations in Solar and Stellar Astrophysics.- Turbulence in Astrophysical and Geophysical Flows.- Turbulence in the Lower Troposphere: Second-Order Closure and Mass#x2013;Flux Modelling Frameworks.- Magnetohydrodynamic Turbulence.- Turbulent Combustion in Thermonuclear Supernovae.- ODT: Stochastic Simulation of Multi-scale Dynamics.

O autorze

Wolfgang Hillebrandt is member of the Editorial Board of LNP and Director Max-Planck-Institute for Astrophysics. He is one of the leading figures in simulations of supernova explosions.

Blurb

What do combustion engines, fusion reactors, weather forecast, ocean flows, our sun, and stellar explosions in outer space have in common? Of course, the physics and the length and time scales are vastly different in all cases, but it is also well known that in all of them, on some relevant length scales, the material flows that govern the dynamical and/or secular evolution of the systems are chaotic and often unpredictable: they are said to be turbulent.
The interdisciplinary aspects of turbulence are brought together in this volume containing chapters written by experts from very different fields, including geophysics, astrophysics, and engineering. It covers several subjects on which considerable progress was made during the last decades, from questions concerning the very nature of turbulence to some practical applications. These subjects include:
a basic introduction into turbulence, statistical mechanics and nonlinear dynamics, turbulent convection in stars, atmospheric turbulence in the context of numerical weather predictions, magnetohydrodynamic turbulence, turbulent combustion with application to supernova explosions, and finally the numerical treatment of the multi-scale character of turbulence.