Egon Krause

Yurii I. Shokin

Nina Shokina

This volume contains 18 contributions to the Third Russian-German Advanced Research Workshop on Computational Science and High Performance Computing presented in July 2007 at Novosibirsk, Russia. The workshop was organized jointly by the High Performance Computing Center Stuttgart (HLRS) and the Institute of Computational Technologies of the Siberian Branch of the Russian Academy of Sciences (ICT SB RAS) The contributions range from computer science, mathematics and high performance computing to applications in mechanical and aerospace engineering. They show a wealth of theoretical work and simulation experience with a potential of bringing together theoretical mathematical modelling and usage of high performance computing systems presenting the state of the art of computational technologies.

The 3rd Russian-German Advanced Research Workshop, Novosibirsk, Russia, 23 - 27 July 2007

Computational Science and High Performance Computing III

K. Gersten

The decision of the General Assembly of the International Union of Theoretical and Applied Mechanics to organize a Symposium on Dynamics of Slender Vortices was greeted with great enthusiasm. The acceptance of the proposal, forwarded by the Deutsches Komitee fiir Mechanik (DEKOMECH) signalized, that there was a need for discussing the topic chosen in the frame the IUTAM Symposia offer. Also the location of the symposium was suitably chosen: It was decided to hold the symposium at the RWTH Aachen, where, years ago, Theodore von Karman had worked on problems related to those to be discussed now anew. It was clear from the beginning of the planning, that the symposium could only be held in the von Karman-Auditorium ofthe Rheinisch-Westfalische Technische Hochschule Aachen, a building named after him. The symposium was jointly organized by the editors of this volume, strongly supported by the local organizing committee. The invitations of the scientific committee brought together scientists actively engaged in research on the dynamics of slender vortices. It was the aim of the committee to have the state of the art summarized and also to have the latest results of specific problems investigated communicated to the participants of the symposium. The topics chosen were asymptotic theories, numerical methods, vor tices in shear layers, interaction of vortices, vortex breakdown, vortex sound, and aircraft and helicopter vortices.

Proceedings of the IUTAM Symposium held in Aachen, Germany, 31 August – 3 September 1997

IUTAM Symposium on Dynamics of Slender Vortices

ThisvolumeispublishedastheproceedingsoftheRussian-GermanAdvanced Research workshop on Computational Science and High Performance C- puting in Novosibirsk Academgorodok in September 2003. The contributions of these proceedings were provided and edited by the authors, chosen after a careful selection and reviewing. The workshop was organized by the Institute of Computational Techno- gies SB RAS (Novosibirsk, Russia) and the High Performance Computing Center Stuttgart (Stuttgart, Germany). The objective was the discussion of the latest results in computational science and to develop a close coope- tion between Russian and German specialists in the above-mentioned ?eld. The main directions of the workshop are associated with the problems of computational hydrodynamics, application of mathematical methods to the development of new generation of materials, environment protection pr- lems, development of algorithms, software and hardware support for hi- performance computation, and designing modern facilities for visualization of computational modelling results. The importance of the workshop topics was con?rmed by the partici- tion of representatives of major research organizations engaged in the so- tion of the most complex problems of mathematical modelling, development of new algorithms, programs and key elements of new information techno- gies. Among the Russian participants were researchers of the Institutes of the Siberian Branch of the Russian Academy of Sciences: Institute of Com- tational Technologies, Institute of Computational Mathematics and Mat- matical Geophysics, Institute of Computational Modelling, Russian Federal Nuclear Center, All-Russian Research Institute of Experimental Physics, - merovo State University.

Russian-German Advanced Research Workshop, Novosibirsk, Russia, September 30 to October 2, 2003

Computational Science and High Performance Computing

Willi Jäger

This book presents the state-of-the-art in modelling and simulation on supercomputers. Leading German research groups present their results achieved on high-end systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2004. The reports cover all fields of computational science and engineering ranging from computational fluid dynamics via computational physics and chemistry to computer science. Special emphasis is given to industrially relevant applications. Presenting results for both vector-systems and micro-processor based systems the book allows to compare performance levels and usability of a variety of supercomputer architectures. In the light of the success of the Japanese Earth-Simulator this book may serve as a guide book for a US response. The book covers the main methods in high performance computing. Its outstanding results in achieving highest performance for production codes are of particular interest for both the scientist and the engineer. The book comes with a wealth of coloured illustrations and tables of results.

Transactions of the High Performance Computing Center, Stuttgart (HLRS) 2004

High Performance Computing in Science and Engineering ' 04

Denis L. Blackmore

Honoring the contributions of one of the field's leading experts, Lu Ting, this indispensable volume contains important new results at the cutting edge of research. A wide variety of significant new analytical and numerical results in critical areas are presented, including point vortex dynamics, superconductor vortices, cavity flows, vortex breakdown, shock/vortex interaction, wake flows, magneto-hydrodynamics, rotary wake flows, and hypersonic vortex phenomena.The book will be invaluable for those interested in the state of the art of vortex dominated flows, both from a theoretical and applied perspective.Professor Lu Ting and Joe Keller have worked together for over 40 years. In their first joint work entitled ?Periodic vibrations of systems governed by nonlinear partial differential equations?, perturbation analysis and bifurcation theory were used to determine the frequencies and modes of vibration of various physical systems. The novelty was the application to partial differential equations of methods which, previously, had been used almost exclusively on ordinary differential equations. Professsor Lu Ting is an expert in both fluid dynamics and the use of matched asymptotic expansions. His physical insight into fluid flows has led the way to finding the appropriate mathematical simplications used in the solutions to many difficult flow problems.

A Volume Celebrating Lu Ting's 80th Birthday

Vortex Dominated Flows

This book presents the state of the art in modeling and simulation on supercomputers. Leading German research groups present their results achieved on high-end systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2003. The reports cover all fields of computational science and engineering ranging from computational fluid dynamics via computational physics and chemistry to computer science. Special emphasis is given to industrially relevant applications. Presenting results for both vector-systems and micro-processor based systems, the book allows the reader to compare performance levels and usability of a variety of supercomputer architectures. In the light of the success of the Japanese Earth-Simulator, this book may serve as a guide book for a US response. The book covers the main methods in high performance computing. Its outstanding results in achieving highest performance for production codes are of particular interest for both the scientist and the engineer. The book comes with a wealth of color illustrations and tables of results.

Transactions of the High Performance Computing Center Stuttgart (HLRS) 2003

High Performance Computing in Science and Engineering ’03

This volume contains contributions to the Russian-German Advanced Research Workshop on Computational Science and High Performance Computing as presented in September 2003 at Novosibirsk (Academgorodok), Russia. The workshop was organized jointly by the German High Performance Computing Center Stuttgart (HLRS) and the Russian Institute for Computational Technologies (ICT SB RAS). The contributions range from computer science, mathematics and high performance computing to applications in mechanical and aerospace engineering. They bring together a wealth of theoretical work and simulation experience and thus show the potential of bringing together theoretical mathematical modelling with the usage of powerful high performance computing systems and present the state of the art of computational technologies.

Despite dramatic advances in numerical and experimental methods of fluid mechanics, the fundamentals are still the starting point for solving flow problems. This textbook introduces the major branches of fluid mechanics of incompressible and compressible media, the basic laws governing their flow, and gasdynamics. "Fluid Mechanics" demonstrates how flows can be classified and how specific engineering problems can be identified, formulated and solved, using the methods of applied mathematics. The material is elaborated in special applications sections by more than 200 exercises and separately listed solutions. The final section comprises the Aerodynamics Laboratory, an introduction to experimental methods treating eleven flow experiments. This class-tested textbook offers a unique combination of introduction to the major fundamentals, many exercises, and a detailed description of experiments.

With Problems and Solutions, and an Aerodynamics Laboratory

Fluid Mechanics

Denis Blackmore

Chee Tung

Honoring the contributions of one of the field's leading experts, Lu Ting, this indispensable volume contains important new results at the cutting edge of research. A wide variety of significant new analytical and numerical results in critical areas are presented, including point vortex dynamics, superconductor vortices, cavity flows, vortex breakdown, shock/vortex interaction, wake flows, magneto-hydrodynamics, rotary wake flows, and hypersonic vortex phenomena. The book will be invaluable for those interested in the state of the art of vortex dominated flows, both from a theoretical and applied perspective. Professor Lu Ting and Joe Keller have worked together for over 40 years. In their first joint work entitled “Periodic vibrations of systems governed by nonlinear partial differential equations”, perturbation analysis and bifurcation theory were used to determine the frequencies and modes of vibration of various physical systems. The novelty was the application to partial differential equations of methods which, previously, had been used almost exclusively on ordinary differential equations. Professsor Lu Ting is an expert in both fluid dynamics and the use of matched asymptotic expansions. His physical insight into fluid flows has led the way to finding the appropriate mathematical simplications used in the solutions to many difficult flow problems. Contents:Circular Discrepancy and a Monte Carlo Algorithm for Generating a Low Circular Discrepancy SequencePeriodic and Quasiperiodic Motion of Point VorticesExperiments on Heave/Pitch Limit-Cycle Oscillations of a Supercritical Airfoil Close to the Transonic DipVortices in SuperconductorsAccurate Numerical Simulation of Three-dimensional Lid-driven Cavity Flows with Different Span LengthsGeometric, Stochastic and Algebraic VorticesExperimental Investigation and Numerical Simulation of Oblique Shock/Vortex InteractionBreakdown of Slender Vortices: The State of the ArtA Numerical Analysis of Vortex Dislocation in Wake-type Flow with Different Spanwise NonuniformityVortex Dipole Coordinates on the SphereMagneto-Fluid-Dynamic Flow ControlInteraction between Longitudinal Vortices and Normal and Oblique ShocksAnalysis of Rotor Vortex Wake Structure Using 3-C PIV MeasurementsTypical Vortex Phenomena in Flow Fields Past Space Vehicles Readership: Researchers in mathematics, aerospace engineering and physics who are interested in vortex dominated flows. Keywords:Vortex Dynamics;Vortex Breakdown;Dipoles;Superconductors;Shocks;Wavelets;Simulation;MHDKey Features:Honors the work of one of the greatest contributors to vortical flow research — Lu TingContains important new results, which also provide a rich and far-reaching context for the research presented

Egon Krause

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