中国舰船研究2016，Vol.11Issue(3)：48-54,7.DOI:10.3969/j.issn.1673-3185.2016.03.009
基于DES的舰船空气尾流场特性分析
Investigation on the numerical simulation of ship airwake based on DES
操戈 1程捷 2毕晓波 1张志国 1王先洲1
作者信息
- 1. 华中科技大学船舶与海洋工程学院，湖北武汉430074
- 2. 海军装备部驻武汉地区军事代表局，湖北武汉430064
- 折叠
摘要
Abstract
The superstructures of ships can generate different scales of vortices, a threat to the helicopter maneuvering. Aiming at the problem, the characteristics of the ship airwake is investigated in this paper with CFD method instead of the traditional Reynold-Averaged Navier-Stokes(RANS) method. In par⁃ticular, Detached Eddy Simulation(DES) method is adopted to investigate the transitional flow field. Through processing the transitional data, a mean flow field is obtained, which agrees well with the ex⁃perimental results, validating the effectiveness and accuracy of DES over RANS in solving ship airwake. Furthermore, by observing the transitional vortices, flow separation, and reattach of ship airwake with DES method, it is concluded that vortexes' asymmetry is the main feature in wake flow, and the vortical magni⁃tude sharply increases at the chimney, inducing a severe threat to the helicopter.关键词
空气尾流/舰船/分离涡模拟(DES)/涡Key words
airwake/warship/Detached Eddy Simulation(DES)/vortex分类
交通工程引用本文复制引用
操戈,程捷,毕晓波,张志国,王先洲..基于DES的舰船空气尾流场特性分析[J].中国舰船研究,2016,11(3):48-54,7.
