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WELCOMING ADDRESS Katsuro Hori noki ta, Chief Executive, Shipbui lding Research Association of Japan Ladies and gentlemen, on behalf of the Japanese sponsoring organization, it is of my great pi easure to wel come al 1 of you to Japan and tothe Fi fth I nternati onal Conference on Numerical Ship Hydrodynamics. Four keynote lectures and forty six papers will be presented by international authorities during the four-day conference. More than 190 participants attend the conference from sixteen countries. This is actual ly an international conference. We are much del ighted with such a positive reaction. Behind such a positive reaction, I guess, there is a potential expectation for the computational fl uid dynamics, CFD. As you may know, when we started to work out to host the conference in Japan, four years ago, the shipbuilding industries in Japan were suffering from a serious setback. Now they are expanding their activities into various fields and cultivating new frontier problems such as ocean engineering, environmental sciences, high speed marine vehicles with new concepts and so on. This may be the case i nternational ly. The computational dynamics or simulation is a promising tool for such unkown problems in new fields. CFD in marine hydrodynamics is expected not only to predict the flows around the marine vehicles or ocean structures but for more global aspects such as energy or envi ronmental probl ems. On the other hand the high speed computers are becomi ng much popul ar and easy to access. Thei r capabi 1 ity seems unbounded. CFD, with complementary use of the conventional tanks, wi 11 make us possible to make further steps into new frontier fi el ds. Thus much is expected for this conference. I believe the conference will be successful and fruitful. And I hope also that the conference may be a good occasion for i nternational human channel. Finally I would like to express our cordial gratitude to our co-sponsors. As you know, this conference has initiated and has been supported by David Taylor Research Center. Wi shout thei r foresight and conti nuous efforts the conference has not exi sted. My gratitude should be extended to Office of Naval Research and Naval Studies Board National Research Counci 1 for their consistent supports. Again I would 1 ike to say welcome to the Fifth International Conference on Numerical Ship Hydrodynamics. Thank you. 1