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Modelling Turbulence in Engineering and the Environment
Modelling transport and mixing by turbulence in complex flows is one of the greatest challenges for CFD. This highly readable volume introduces the reader to a level of modelling that respects the complexity of the physics of turbulent flows – second-moment closure. Following introductory chapters providing essential physical background, the book examines in detail the processes to be modelled, from fluctuating pressure interactions to diffusive transport, from turbulent time and length scales to the handling of the semi-viscous region adjacent to walls. It includes extensive examples ranging from fundamental homogeneous flows to three-dimensional industrial or environmental applications. This book is ideal for CFD users in industry and academia who seek expert guidance on the modelling options available, and for graduate students in physics, applied mathematics and engineering who wish to enter the world of turbulent flow CFD at the advanced level.
Modelling Turbulence in Engineering and the Environment
Modelling transport and mixing by turbulence in complex flows are huge challenges for computational fluid dynamics (CFD). This highly readable book introduces readers to modelling levels that respect the physical complexity of turbulent flows. It examines the hierarchy of Reynolds-averaged Navier-Stokes (RANS) closures in various situations ranging from fundamental flows to three-dimensional industrial and environmental applications. The general second-moment closure is simplified to linear eddy-viscosity models, demonstrating how to assess the applicability of simpler schemes and the conditions under which they give satisfactory predictions. The principal changes for the second edition reflect the impact of computing power: a new chapter devoted to unsteady RANS and another on how large-eddy simulation, LES, and RANS strategies can be effectively combined for particular applications. This book will remain the standard for those in industry and academia seeking expert guidance on the modelling options available, and for graduate students in physics, applied mathematics and engineering entering the world of turbulent flow CFD.
Engineering
Incorporating HC 470-i-iii, 640-i-iii, 599-i-iii, 1064-i, 1202-i, 1194-i of session 2007-08
Turbulence Management and Relaminarisation
The last two decades have witnessed an intensifying effort in learning how to manage flow turbulence: it has in fact now become one of the most challenging and prized techno logical goals in fluid dynamics. The goal itself is of course not new. More than a hundred years ago, Reynolds already listed factors conducive to laminar and to turbulent flow (including among them curvature and acceleration). Further more, it is in retrospect clear that there were several early instances ot successful turbulence management. Examples are the reduction in drag achieved with a ring-trip placed on the front of a sphere or the insertion of a splitter-plate behind a circular cylinder; by the early 1950s ther...
Direct and Large-Eddy Simulation VI
The sixth ERCOFTAC Workshop on ‘Direct and Large-Eddy Simulation’ (DLES-6) was held at the University of Poitiers from September 12-14, 2005. Following the tradition of previous workshops in the DLES-series, this edition has reflected the state-of-the-art of numerical simulation of transitional and turbulent flows and provided an active forum for discussion of recent developments in simulation techniques and understanding of flow physics.
The 2051 Munich Climate Conference
In September 2021 a very special academic conference took place: T2051MCC - The 2051 Munich Climate Conference. Researchers from across the academic spectrum assembled to discuss climate change. What made it special was that everyone held their lecture as if it took place in an imagined year 2051. The theatre collective Büro Grandezza had released an open call for contributions to a conference in Munich. Almost 50 researchers wrote papers on climate narratives, geoengineering, coastal adaptation and other topics. This particular framework allowed them to break out of the constraints of the current discourse without neglecting methodology or thematic sharpness.
The Routledge Companion to Environmental Ethics
Written for a wide range of readers in environmental science, philosophy, and policy-oriented programs The Routledge Companion to Environmental Ethics is a landmark, comprehensive reference work in this interdisciplinary field. Not merely a review of theoretical approaches to the ethics of the environment, the Companion focuses on specific environmental problems and other concrete issues. Its 65 chapters, all appearing in print here for the first time, have been organized into the following eleven parts: I. Animals II. Land III. Water IV. Climate V. Energy and Extraction VI. Cities VII. Agriculture VIII. Environmental Transformation IX. Policy Frameworks and Response Measures X. Regulatory T...
The Survival Nexus
"The impact of science and technology on world affairs is shaped by politics, economics, business, ethics, law, psychology, and culture. This nexus is a neglected aspect of international affairs. It cuts across and unites diverse issues critical to human survival: climate change, global health, nuclear weapons, Internet governance, cybersecurity, jobs, competitiveness, poverty, hunger, and the management of new technologies like autonomous weapons, hypersonic missiles, geoengineering, and gene drivers. Advances in science and technology promise both great benefits and critical threats. Appropriate policies can stimulate and guide scientific and technological advance to create new ways to ach...
The Governance of Solar Geoengineering
Solar geoengineering could reduce climate change, but poses risks. This volume explores how it is, could, and should be governed.
