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Article type: Cover
2006 Volume 16 Issue 2 Pages
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Published: June 27, 2006
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Article type: Index
2006 Volume 16 Issue 2 Pages
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Toshikazu Takada
Article type: Article
2006 Volume 16 Issue 2 Pages
107-
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Tetsuya Sato
Article type: Article
2006 Volume 16 Issue 2 Pages
108-111
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The Earth Simulator Project that started in July of 2002 at the Earth Simulator Center of JAMSTEC has produced many epoch-making scientific results in the global atmosphere and ocean circulation simulation, the earth's interior dynamic simulation, nano-material simulation, tera-hertz oscillator design, exact lattice-QCD solution, tokamak anomalous transport simulation, etc. Those results have world-wide brought a big impact and influence upon the simulation science and engineering. Simulation has now acquired civil rights as a scientific tool to make scientifically reliable prediction of natural disasters and make design of innovative new industrial materials and products.
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Keiko Takahashi, Xindong Peng, Mitsuru Ohdaira, Ryo Onishi, Takeshi Su ...
Article type: Article
2006 Volume 16 Issue 2 Pages
112-124
Published: June 27, 2006
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Global/regional oriented coupled non-hydrostatic atmosphere-ocean-land simulation code has been developed in the Earth Simulator Center since FY 2003. In this paper, outline of the coupled non-hydrostatic atmosphere-ocean-land simulation code is introduced. Grand challenges to be simulated on the Earth Simulator will be introduced as the multi-scale multi-physics simulations. Reasons why the multi-scale simulations are required are shown and only the Earth Simulator allows us to simulations taking account various scale interactions. While developing the coupled non-hydrostatic atmosphere-ocean-land simulation, ultra high computational performance has been performed on the Earth Simulator. It is shown that 60% prior to theoretical peak performance has been performed on 512 nodes, which are corresponding to usually used the maximum number of nodes, of the Earth Simulator. Not only experiments with stand alone either non-hydrostatic atmosphere or ocean simulation code but some experiments of weather/climate prediction with the coupled model were examined. Physical interactions between atmosphere and ocean were simulated with fine structures.
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Takeshi Enomoto, Hideharu Sasaki, Nobumasa Komori
Article type: Article
2006 Volume 16 Issue 2 Pages
125-133
Published: June 27, 2006
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Advent of the Earth Simulator enabled us to conduct simulations of the global atmosphere and ocean at unprecedentedly high resolutions. We optimised atmospheric and oceanic codes and built an atmophere-ocean coupled model on the Earth Simulator. Our high-resolution global atmospheric model is able to simulate regional atmospheric events such as typhoon, Baiu, and Foehn realistically. In the 50-year simulation using our high-resolution global ocean model, meander and eddies associated with strong currents such as the Kuroshio, equatorial counter and Agulhas currents are reproduced quite realistically. In high resolution simulations, not only details of atmospheric and oceanic phenomena and topography but also inter-scale interactions are represented. In atmosphere-ocean coupled simulations inter-process interactions such as those between sea-ice and mid-latitude storms can be also represented. Capability of realistic simulations encourages us to improve seasonal prediction of the activities of atmospheric and oceanic eddies.
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Hiroyuki Umetani, Kazuhiro Iizima, Tamotsu Ito, Syoichi Tagami, Katsuh ...
Article type: Article
2006 Volume 16 Issue 2 Pages
134-141
Published: June 27, 2006
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The present study named ES-CAR Project (earth simulation+car) is being carried out jointly by the Earth Simulator Center (hereafter "ESC") and the Japan Automobile Manufacturers Association ("JAMA") for the period from June 2004 to March 2006. With the help of ESC's massively parallel supercomputer system, the ES-CAR Project is aimed at outlining a nextgeneration vehicle performance simulation that can be put to good use from around 2010 or 3 to 5 years after the project's 2006 completion. Introduced in this interim report are the history, FY 2004 activities, and scheduled FY 2005 activities of the ES-CAR Project.
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Toshiaki Hisada, Takumi Washio
Article type: Article
2006 Volume 16 Issue 2 Pages
142-156
Published: June 27, 2006
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We introduce a new approach to simulate fluid-structure interaction of the heart valves. Our approach is based on the Lagrange multiplier method, thus similar to the fictitious domain method. However, unlike the existing approaches, we avoid interpolations of the fluid velocity on the interface with the structure, and introduce equations of continuity around the interface as the constraint conditions instead. Through some mathematical considerations based on a weak formulation of the Navier-Stokes equation, we show the validity of the approach. We also introduce another constraint based on the same idea to achieve stability in the analysis of open-close behavior of the heart valves. A couple of simulations of aortic valves are successfully shown.
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Kenji Hirohata, Katsumi Hisano, Takashi Kawakami, Kuniaki Takahashi, C ...
Article type: Article
2006 Volume 16 Issue 2 Pages
157-163
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Louis Komzsik, Eiichi Satoh
Article type: Article
2006 Volume 16 Issue 2 Pages
164-169
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Tadashi Watanabe
Article type: Article
2006 Volume 16 Issue 2 Pages
170-175
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Yasutsugu Takeda
Article type: Article
2006 Volume 16 Issue 2 Pages
176-179
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Tetsuya Sato
Article type: Article
2006 Volume 16 Issue 2 Pages
180-182
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Tsuyoshi Kajiwara
Article type: Article
2006 Volume 16 Issue 2 Pages
183-184
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Hirokazu Ninomiya
Article type: Article
2006 Volume 16 Issue 2 Pages
184-
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Hitoshi Imamura
Article type: Article
2006 Volume 16 Issue 2 Pages
185-186
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Kazuo Kishimoto
Article type: Article
2006 Volume 16 Issue 2 Pages
186-187
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
188-191
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
192-
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
192-
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
193-
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Article type: Index
2006 Volume 16 Issue 2 Pages
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
195-
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
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Article type: Appendix
2006 Volume 16 Issue 2 Pages
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Article type: Cover
2006 Volume 16 Issue 2 Pages
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Published: June 27, 2006
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