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Small waterplane area ship models: Re-analysis of test results based on scale effect and form drag

机译:小型水上飞机模型:基于比例效应和外形阻力的测试结果再分析

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摘要

The first systematic model series of hulls with small waterplane area (both single hulls and twin-hulls) was designed and tested in Krylov Shipbuilding Research Institute in the middle of the 1980's. The series was intended to cover a broad range of Froude numbers, hull aspect ratios, design drafts, and spacing between hulls. In the present paper, these test results are re-analyzed by accounting for the scale effect in the form drag, obtained from the comparison with test data of larger out-of-series models. Illustrative results are also given for the influence of the cross-section hull shape, strut configuration, and shifted hulls on the residual resistance and for dynamic trim and draft. Some data are compared with those of the later series tests of twin-hull models with small waterplane area carried out in HSVA, Germany. Factors influencing the residual resistance of ships of this type are discussed.
机译:1980年代中期,在克雷洛夫造船研究所设计并测试了第一个系统的模型,该模型系列具有较小的水上飞机面积(单壳和双壳)。该系列旨在涵盖广泛的弗洛伊德数,船体纵横比,设计吃水和船体之间的间距。在本文中,这些测试结果通过考虑形式阻力的比例效应重新分析,该形式阻力是通过与较大系列模型的测试数据进行比较而获得的。还给出了横截面船体形状,支撑结构和移位船体对残余阻力的影响以及动态纵倾和吃水的说明性结果。一些数据与后来在德国HSVA进行的小水翼面积双船体模型系列试验的数据进行了比较。讨论了影响这种类型船舶的剩余阻力的因素。

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