多用途散货船尾流场的数值计算  

Numerical Study about the Wake Flow of Multi-purpose Vessel

作　　者：程枳宁 陈正寿 赵陈[2] 章敏杰 郑武 冉行耀 

机构地区：[1]浙江海洋大学港航与交通运输工程学院,浙江舟山316022 [2]浙江国际海运职业技术学院,浙江舟山316021 [3]浙江欧华造船股份有限公司,浙江舟山316101 [4]太平洋海洋工程(舟山)有限公司,浙江舟山316057

出　　处：《浙江海洋学院学报（自然科学版）》2016年第3期239-243,共5页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：浙江省公益技术应用研究计划项目(2015C34013);舟山科技计划项目(2014C41003)

摘　　要：运用CFD方法,开展了多用途散货船阻力性能的数值模拟。对计算得到的不同航速下裸船体总阻力系数与HSVA水池试验得出的对应参数进行比较,经最终分析得到数值计算结果与物理模型实验值相对偏差在5%内,初步验证了数值计算方法的可靠性。本文着重研究了不同缩尺比下船体尾部的标称伴流,分析结果表明船尾边界层厚度随雷诺数的增大而减小;桨盘面伴流分数存在单峰值,随着雷诺数的增大,伴流分数峰值相应减小;船模缩尺比越大,伴流尺度效应越明显。By means of CFD method, numerical simulation of resistance performance about a multi pur- pose vessel has been performed. Through comparing the total resistance coefficients of different speeds, it has been found that the relative deviation due to results obtained from numerical simulation and HSVA towing tank respectively is less than 5%. The effectiveness of proposed CFD method has been well verified. Furthermore, the nominal wake at the ship stern according to different scales has also been investigated. It has been found the stern boundary layer thickness decreases with the increase of Reynolds number. In addition, there is a peak value of the paddle disk wake fraction. It is worth noting that the peak value decreases with the increase of the Reynolds number, and sale effect on nominal wake becomes remarkable in the case of ship model scale being larger.

关 键 词：数值仿真 总阻力系数 尺度效应 伴流分数 

分 类 号：U671.99[交通运输工程—船舶及航道工程]