Development of Network-Distributable CFD-Based Optimization System

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The objective of the present research is to develop a network-distributable CFD-based optimization system for general hydrodynamic design. The most important feature of the present system is the compact and network-distributable architecture, which resolves many issues in current usage of IT applications in ship design, i.e., CAD, analysis methods, and optimization methods have been independently developed and the networking interfaces are not well established.In the first year and part of the second year, focus was placed on development of CAD/CFD/Optimizer integrated design system on a standalone server. Then in rest of the second year, the system was extended including the network-distributable architecture so that each module may be located at arbitral computing resource within the same local area network. As a demonstration, a commercial CAD system for ship design, NAPA, was integrated into the present system. The CFD and optimizer modules are a Rakine-source panel method and non linear programming codes based on SQP and GA, all of which were developed by the present investigators. Those tasks were successfully completed, and results presented for a container-ship bow optimization were shown to be very promising.Finally, main effort in the third year (final year) was directed toward further evaluation of the present system and documentation. It was shown that the present system offers advantages to designers who wish to make full use of their IT application resources, which leaded to an important fact that designers have more opportunities to study alternative designs. In conclusion, all tasks of the present work had been successfully completed, and further extension of the present system appeared to be possible in many design applications. In fact, the extension has been currently in progress in collaboration with several IT industries.