Numerical simulation of fluid flow around ships and marine structures has a long tradition in naval architecture, dating back to the 19th century, with some of the rather clerical and classical methods still in use today. Now however, advances in computer technologies alongside improved algorithms and extended theoretical basis over the past two decades have accelerated developments to such an extent that the ultimate dream of a complete 'numerical towing tank' or 'virtual basin' is within reach today. This topic is discussed here by Jochen Marzi, from HSVA, and Dracos Vassalos, of the Universities of Glasgow and Strathclyde.
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