Although the catamaran configuration has been known for a long time, it is only in the recent past that such hull forms have enjoyed unprecedented usage in the high-speed ferry industry. One of the design challenges faced by naval architects is the accurate prediction of the hydrodynamic characteristics of such vessels, primarily in the areas of resistance, propulsion and seakeeping. Even though a considerable amount of research has been carried out in this area, there remains a degree of uncertainty in the prediction of calm-water resistance of catamaran hull forms. In our research, we examine the calm-water wave-resistance characteristics of a chine-hull-form transom-stern slender catamaran, based on computational fluid dynamics (CFD) modelling and thin-ship theory. We include here a validation and comparison of CFD predictions with experimental data. We also include the results of calculations by Hydros, a computer program developed at The University of New South Wales, which gives very accurate predictions of resistance of high-speed marine vessels. The hull forms comprise a conventional catamaran along with longitudinally staggered demihull configurations.ududThe investigation of a longitudinally staggered catamaran is to provide an unusual hull form for CFD analysis and to fill the knowledge gap between catamaran and trimaran wave resistance. Although considerable work has been done on the optimal position of trimaran outriggers for minimum resistance, significantly less work has been carried out on the centerline equivalent. While the hull form is not immediately practical, it is of great interest to understand the wave field interaction between the demihulls.
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机译：尽管双体船的配置早已为人所知，但直到最近，这种船体形式才在高速渡轮行业中得到了空前的使用。海军建筑师面临的设计挑战之一是准确预测此类船只的水动力特性，主要是在阻力，推进力和海上航行方面。即使在该领域进行了大量研究，但在预测双体船船体形式的耐静水性方面仍存在一定程度的不确定性。在我们的研究中，我们基于计算流体力学（CFD）建模和薄船理论，研究了船体形船尾船形细长双体船的静水波阻力特性。我们在此处包括对CFD预测与实验数据的验证和比较。我们还包括了新南威尔士大学开发的计算机程序Hydros的计算结果，该程序可以非常准确地预测高速船的阻力。船体形式包括常规的双体船以及纵向交错的船体配置。 ud ud对纵向交错双体船的研究旨在为CFD分析提供一种不寻常的船体形式，并填补双体船和三体船抗波能力之间的知识鸿沟。尽管为使阻力最小化而在三体帆船支腿的最佳位置上进行了大量工作，但在中心线等效物上所做的工作却少得多。尽管船体形式不是立即可行的，但了解半船体之间的波场相互作用却非常有趣。
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