高速船舶通过船型设计可以有效降低波浪增阻，从而实现海上快速救援的目的。本文研究波浪增阻的数值计算方法，包括势流二维切片法以及RANS/LES混合法，阐述2种计算方法的原理，对波浪增阻频率响应函数进行对比计算。以减小波浪增阻、提升稳定性为船型设计优化目标，使用势流二维切片法以及RANS/LES混合法对优化前后的波浪增阻进行计算，结果表明2种方法均可实现对波浪增阻的数值计算，RANS/LES混合法具有较高的计算精度，更适合于评估复杂的水动力性能。
The high speed ship can effectively reduce the wave drag through the ship shape design, so as to achieve the purpose of rapid rescue at sea. In this paper, the numerical calculation methods of wave drag increase are studied, including potential flow two-dimensional slice method and RANS/LES mixed method. The principle of the two methods is described, and the frequency response function of wave drag increase is compared. In order to reduce the wave drag and improve the stability, the potential flow two-dimensional slice method and the RANS/LES hybrid method are used to calculate the wave drag before and after the optimization. The results show that the two methods can realize the numerical calculation of the wave drag. The RANS/LES hybrid method has higher calculation accuracy and is more suitable for evaluating the complex hydrodynamic performance.
2024,46(20): 65-68 收稿日期：2024-4-8
DOI：10.3404/j.issn.1672-7649.2024.20.012
分类号：U667.65
作者简介：孙东辉(1979-),男,硕士,高级工程师,研究方向为船舶型材优化设计
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