After 30 years’ developing bespoke CFD tools and applying them to the design of an impressive range of craft from IACC America’s Cup yachts to commercial hydrofoils, yacht designer and ACT Technologies co-founder Akihiro Kanai took particular pleasure in watching the successful results of his handiwork at a smaller scale, first at the Tokyo 2020 Regatta in Enoshima and then in Marseille at Paris 2024
In 1990 my first serious encounter with Computational Fluid Dynamics (CFD) was a free-surface flow simulation around the stern of a high-speed hydrofoil catamaran, which I undertook as a postgraduate student.
At that time a typical workstation had only 100MB of memory and 32-bit CPUs. Even so, and running at what would today be described as a snail’s pace, it was a big step forward to have this new tool to evaluate the performance of a vessel; even 35 years ago it was clear that, moving forwards, researching and developing CFD codes was going to become essential for designers to be able to design marine craft to the level of optimisation that would soon be expected. But not just yet… because back then the reality was that there were very few commercial codes available.
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