Studies on the optimization of stern hull form based on a potential flow solver
Studies on the optimization of stern hull form based on a potential flow solver
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DOI：
10.1007/s00773-005-0198-x
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发表时间：
2005-06
影响因子：
2.6
通讯作者：
Kazuo Suzuki;H. Kai;Shigetoshi Kashiwabara
中科院分区：
文献类型：
--
作者：
Kazuo Suzuki;H. Kai;Shigetoshi Kashiwabara
本文介绍了Bessho提出的二次流最小能量假设。根据这一假设，可以预期具有最小二次流能量的框架线的船体形式具有较小的形式阻力。在本文的第一部分中，对有和没有自由表面效应的情况下的二次流能进行了计算，并对实际船体形式证实了Bessho的假设。在此基础上，提出了艉壳形状的优化方法，其中引入了非线性优化技术。给出了一种实际油轮船型和一种实际集装箱船型的数值算例。研究结果表明，所提出的优化方法是一种简化的、实用的艉壳型框架线选择设计方法。
A hypothesis of the minimum energy of secondary flow, suggested by Bessho, is introduced here. According to this hypothesis, it can be expected that hull forms having frame lines with a minimum energy of secondary flow show less form drag. In the first part of this article, secondary flow energy is evaluated for the cases with and without a free-surface effect, and Bessho’s hypothesis is confirmed for practical hull forms. Then optimization methods for the stern hull form are suggested, in which a nonlinear optimization technique is introduced. Numerical examples are given for a practical tanker hull form and a practical container hull form. From these studies, the suggested optimization method can be confirmed as a simplified and practical design method to the select frame lines of stern hull forms.