Numerical simulation technology faces technical innovation. The conventional numerical simulation has merely been analyzing a part of complex natural phenomena such as structure and flow by modeling. Recently, following the drastically strides of informational technology, it is in the process to simulate natural phenomena totally. This simulation technology for total natural phenomena (called virtual laboratory technology) is significant in practical use and is the main theme for a coming simulation study. On the other hand, a study that works out for a development of new materials by means of computer has lately attracted considerable attention. In order to materialize computational materials design, study and development of virtual laboratory technology are essential. For materialization of virtual laboratory, we have developed a technology to integrate those resources (software, data, researchers, etc.) dispersed in network. Putting it concretely, we have developed a technology (called task flow) to control complex simulation process under network and a technology to materialize information interchange with dynamic selection of informational resource/tool under a condition of dispersion. Utilizing those technologies, we have formed a virtual experiment system subjected to high-temperature superalloy and exercised the series of simulations. Consequently, the validity of virtual laboratory was observed.
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