Efforts to improve the hydrodynamic performance of high-speed ships have been underway for a long time. There are different approaches, one of which is to take advantage of an interceptor. Conventionally, the interceptor blades are mounted vertically on the ship's bottom transom, oriented at a zero-degree angle of attack (). This study comprehensively explores high-speed ships' hulls with and without interceptor configurations, encompassing both negative and positive of the interceptor, conducted through experimental and numerical methods using a fully captive model. The interceptors are strategically positioned and configured. Each configuration was examined under varying settings, with uniform interceptor depths and systematic trim angle adjustments. The Computational Fluid Dynamics (CFD) approach simulates the local flow dynamics around the hull, thoroughly analyzing resistance, pressure distribution, lift force, wave profile, and trim moment. The results indicate that interceptor placement near the keel with adjustments significantly reduces hydrodynamic resistance, while changes have limited impact in other positions. Lift force analysis shows interceptors improve lift compared to the bare hull, but this improvement is not linear across positions. Furthermore, it is observed that adjustments in influence lift, with a negative generally being considered favorable. In summary, carefully considering placement, , and height-to-length ratio is necessary to maximize interceptor advantages.

中文翻译：

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变攻角拦截弹对高速舰艇水动力影响的实验与数值研究

长期以来，人们一直致力于提高高速船舶的水动力性能。有不同的方法，其中之一是利用拦截器。传统上，拦截器叶片垂直安装在船底横梁上，以零迎角定向（）。本研究全面探讨了带有和不带有拦截器配置的高速船的船体，包括拦截器的消极和积极，通过实验和数值方法使用完全自保模型进行。拦截器经过战略性定位和配置。每个配置都在不同的设置下进行了检查，具有统一的拦截器深度和系统的纵倾角调整。计算流体动力学 (CFD) 方法模拟船体周围的局部流动动力学，彻底分析阻力、压力分布、升力、波浪剖面和纵倾力矩。结果表明，拦截器放置在龙骨附近并进行调整可显着降低水动力阻力，而其他位置的变化影响有限。升力分析显示，与裸船体相比，拦截器提高了升力，但这种提高在不同位置上并不是线性的。此外，据观察，调整影响力提升，负面影响通常被认为是有利的。总之，为了最大限度地发挥拦截器的优势，必须仔细考虑放置位置和高长比。