Siegfried Wagner – författare
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23 produkter
23 produkter
Del 240 - Beihefte Zur Zeitschrift Für die Alttestamentliche Wissensch
Ausgewählte Aufsätze Zum Alten Testament
Inbunden, Tyska, 1996
2 096 kr
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Del 79 - Beihefte Zur Zeitschrift Für die Alttestamentliche Wissensch
Die Essener in Der Wissenschaftlichen Diskussion
Vom Ausgang Des 18. Bis Zum Beginn Des 20. Jahrhunderts. Eine Wissenschaftsgeschichtliche Studie
Inbunden, Tyska, 1960
1 564 kr
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553 kr
Skickas inom 10-15 vardagar
652 kr
Skickas inom 10-15 vardagar
603 kr
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356 kr
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653 kr
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Computational Fluid Dynamics on Parallel Systems
Proceedings of a CNRS-DFG Symposium in Stuttgart, December 9 and 10, 1993
Häftad, Engelska, 1995
1 069 kr
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This volume contains 18 papers that consider finite element, finite volume and a two-step Taylor-Galerkin algorithm for the numerical solution of the Euler and Navier-Stokes equations on massively parallel computers with MIND and SIMD architecture and on work station clusters. Incompressible and compressible, steady and unsteady flows are considered, including turbulent combustion with complex chemistry. Structured and unstructured grids are used. High numerical efficiency is demonstrated by multiplicative, additive and multigrid methods. Various methods for domain decompositions are investigated. Shared memory, virtual shared memory and distributed memory systems are also investigated, in some cases based on an automatic grid partitioning technique.
High Performance Computing in Science and Engineering in Munich 2002
Transactions of the First Joint HLRB and KONWIHR Status and Result Workshop, Oct. 10-11, 2002, Technical University of Munich, Germany
Inbunden, Engelska, 2003
856 kr
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This volume presents a selection of reports from scientific projects requiring high end computing resources on the Hitachi SR8000-F1 supercomputer operated by Leibniz Computing Center in Munich. All reports were presented at the joint HLRB and KONWHIR workshop at the Technical University of Munich in October 2002. The following areas of scientific research are covered: Applied Mathematics, Biosciences, Chemistry, Computational Fluid Dynamics, Cosmology, Geosciences, High-Energy Physics, Informatics, Nuclear Physics, Solid-State Physics. Moreover, projects from interdisciplinary research within the KONWIHR framework (Competence Network for Scientific High Performance Computing in Bavaria) are also included. Each report summarizes its scientific background and discusses the results with special consideration of the quantity and quality of Hitachi SR8000 resources needed to complete the research.
Recent Results in Laminar-Turbulent Transition
Selected numerical and experimental contributions from the DFG priority programme "Transition" in Germany
Inbunden, Engelska, 2003
2 131 kr
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This volume contains 24 papers presented at the international concluding colloquium of the German priority programme (DFG-Verbundschwerpunktprogramm) "Transition", held in April 2002 in Stuttgart. The unique and successful programme ran six years starting April 1996, and was sponsored mainly by the Deutsche Forschungsgemeinschaft, DFG, but also by the Deutsches Zentrum fur Luft-und Raumfahrt, DLR, the Physikalisch-Technische Bundesanstalt Braunschweig, PTB, and Airbus Deutschland. The papers summarise the results of the programme and cover transition mechanisms, transition prediction, transition control, natural transition and measurement techniques, transition - turbulence - separation, and visualisation issues. Three invited papers are devoted to mechanisms of turbulence production, to a general framework of stability, receptivity and control, and a forcing model for receptivity analysis. Almost every transition topic arising in subsonic and transonic flow is covered.
New Results in Numerical and Experimental Fluid Mechanics III
Contributions to the 12th STAB/DGLR Symposium Stuttgart, Germany 2000
Inbunden, Engelska, 2002
2 131 kr
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This volume contains the papers of a German Symposium dealing with research and project work in numerical and experimental aerodynamics and fluidmechanics for aerospace and other applications. The results are reported from universities, research-establishments and industry. It therefore gives a broad overview over the ongoing work in this field in Germany.
1 101 kr
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Leading-edge research groups in the field of scientific computing present their outstanding projects using the High Performance Computer in Bavaria (HLRB), Hitachi SR8000-F1, one of the top-level supercomputers for academic research in Germany. The projects address modelling and simulation in the disciplines Biosciences, Chemistry, Chemical Physics, Solid-State Physics, High-Energy Physics, Astrophysics, Geophysics, Computational Fluid Dynamics, and Computer Science. The authors describe their scientific background, their resource requirements with respect to top-level supercomputers, and their methods for efficient utilization of the costly high-performance computing power. Contributions of interdisciplinary research projects that have been supported by the Competence Network for Scientific High Performance Computing in Bavaria (KONWIHR) complete the broad range of supercomputer research and applications covered by this volume.
1 600 kr
Skickas inom 10-15 vardagar
For the fourth time, the Leibniz Supercomputing Centre (LRZ) and the Com- tence Network for Technical, Scienti c High Performance Computing in Bavaria (KONWIHR) publishes the results from scienti c projects conducted on the c- puter systems HLRB I and II (High Performance Computer in Bavaria). This book reports the research carried out on the HLRB systems within the last three years and compiles the proceedings of the Third Joint HLRB and KONWIHR Result and Reviewing Workshop (3rd and 4th December 2007) in Garching. In 2000, HLRB I was the rst system in Europe that was capable of performing more than one Tera op/s or one billion oating point operations per second. In 2006 it was replaced by HLRB II. After a substantial upgrade it now achieves a peak performance of more than 62 Tera op/s. To install and operate this powerful system, LRZ had to move to its new facilities in Garching. However, the situation regarding the need for more computation cycles has not changed much since 2000. The demand for higher performance is still present, a trend that is likely to continue for the foreseeable future. Other resources like memory and disk space are currently in suf cient abundance on this new system.
Recent Results in Laminar-Turbulent Transition
Selected numerical and experimental contributions from the DFG priority programme "Transition" in Germany
Häftad, Engelska, 2010
2 131 kr
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Methodic investigations of laminar-turbulent transition in wall-bounded she ar flows under controlled conditions are essential for untangling the various complex phenomena of the transition process occurring in flows at practical conditions. They allow understanding of the instability processes of the la minar flow, and thus enable the development of tools for flow control. On the one hand the laminar flow regime can be extended by delaying transition to reduce viscous drag, and on the other hand large-scale flow disturbances or transition can be forced in order to enhance momentum and mass ex change. Thus flow separation can be prevented, or mixing of fuel and air in combustion engines enhanced, for instance. The "DFG Verbund-Schwerpunktprogramm Transition" - a cooperative priority research program of universities, research establishments and indu stry in Germany - has been launched in April 1996 with the aim to explore transition by a coordinated use, development and validation of advanced experimental techniques and theoretical/numerical simulation methods, bin ding together all the appropriate resources available in Germany. At the very beginning of the six-year research period specifically selected test problems were to be investigated by various theoretical and experimental methods to identify and possibly rule out inadequate numerical or experimental methods. With respect to experiments it was planned to use multi-sensor-surface measuring techniques, the infrared measuring technique, and particle image velocimetry (PlV) in addition to hot-wire techniques to get instantaneous images of flows in sections, on surfaces, or within the complete flow field.
1 600 kr
Skickas inom 10-15 vardagar
For the fourth time, the Leibniz Supercomputing Centre (LRZ) and the Com- tence Network for Technical, Scienti c High Performance Computing in Bavaria (KONWIHR) publishes the results from scienti c projects conducted on the c- puter systems HLRB I and II (High Performance Computer in Bavaria). This book reports the research carried out on the HLRB systems within the last three years and compiles the proceedings of the Third Joint HLRB and KONWIHR Result and Reviewing Workshop (3rd and 4th December 2007) in Garching. In 2000, HLRB I was the rst system in Europe that was capable of performing more than one Tera op/s or one billion oating point operations per second. In 2006 it was replaced by HLRB II. After a substantial upgrade it now achieves a peak performance of more than 62 Tera op/s. To install and operate this powerful system, LRZ had to move to its new facilities in Garching. However, the situation regarding the need for more computation cycles has not changed much since 2000. The demand for higher performance is still present, a trend that is likely to continue for the foreseeable future. Other resources like memory and disk space are currently in suf cient abundance on this new system.
1 069 kr
Skickas inom 10-15 vardagar
Leading-edge research groups in the field of scientific computing present their outstanding projects using the High Performance Computer in Bavaria (HLRB), Hitachi SR8000-F1, one of the top-level supercomputers for academic research in Germany. The projects address modelling and simulation in the disciplines Biosciences, Chemistry, Chemical Physics, Solid-State Physics, High-Energy Physics, Astrophysics, Geophysics, Computational Fluid Dynamics, and Computer Science. The authors describe their scientific background, their resource requirements with respect to top-level supercomputers, and their methods for efficient utilization of the costly high-performance computing power. Contributions of interdisciplinary research projects that have been supported by the Competence Network for Scientific High Performance Computing in Bavaria (KONWIHR) complete the broad range of supercomputer research and applications covered by this volume.
New Results in Numerical and Experimental Fluid Mechanics III
Contributions to the 12th STAB/DGLR Symposium Stuttgart, Germany 2000
Häftad, Engelska, 2012
2 131 kr
Skickas inom 10-15 vardagar
This volume contains the papers of a German symposium dealing with research and project work in numerical and experimental aerodynamics and fluidmechanics for aerospace and other applications. It gives a broad overview over the ongoing work in this field in Germany.
538 kr
Skickas inom 10-15 vardagar
High-Performance Computers (HPC) have initiated a revolutionary develop ment in research and technology since many complex and challenging prob lems in this area can only be solved by HPC and a network in modeling, algo rithms and software. In 1998 the Deutsche Forschungsgemeinschaft (German Research Association) recommended to install an additional Federal High Performance Computer followed by the one in Stuttgart. In January 1999 the Wissenschaftsrat (German Science Council) decided that the Leibniz Rechenzentrum (Computing Center) of the Bavarian Academy of Sciences in Munich should run the second Federal High-Performance Computer in Ger many. The investment cost of this Hochstleistungsrechner in Bayern (HLRB) was borne by the Federal Government of Germany and the Free State of Bavaria whereas the operating cost was at the expense of the Bavarian Gov ernment only. The operation of the HLRB is organized in combination with the - Leibniz-Rechenzentrum (LRZ) of the Bavarian Academy of Sciences as the operating authority of the HLRB - Steering Committee of the HLRB - Competence Network for Technical/Scientific High-Performance Comp- ing in Bavaria (KONWIHR). In 2000 a Hitachi SR8000-Fl was installed. It was the first Teraflops Com puter in Germany and reached a peak performance of two Teraflops after an extension at the end of 2001. The goal of HLRB is to provide computer facil ities necessary to solve challenging scientific and technological problems that cannot be solved on big servers but require large (storage) high-performance (very fast) computers and efficient software.
1 069 kr
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Over the last five years an enormous number of wind turbines have been installed in Europe, bringing wind energy into public awareness. However, its further development is restricted mainly by public complaints caused by visual impact and noise.The European Commission has therefore funded a number of research projects in the field of wind turbine noise within the JOULE program. This book presents the most relevant results of these projects.The book addresses all relevant aspects of wind turbine noise, namely: noise reduction, noise propagation, noise measurement, and an introduction to aeroacoustics. It may serve as a first reference in the field of wind turbine noise for researchers, planners, and manufacturers.
2 344 kr
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Similar to the workshop two years ago, the majority of the contributed papers belong to the area of computational ?uid dynamics (CFD), condensed matter physics, astrophysics, chemistry, computer sciences and high-energy physics.
293 kr
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302 kr
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590 kr
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