摘要
为研究风向对舰船甲板上方流场的影响,运用数值模拟方法对舰船甲板上方空气流场进行求解,分析不同风向时舰船甲板流场的流线形态和涡量分布.对流场中的旋涡进行分类,并阐述各类旋涡的产生原因、发展过程与相互作用.研究结果表明:0°风向时,船首分离涡影响甲板前端流场,上层建筑尾涡只影响其正后方小范围甲板区域;+15°风向时,甲板上方流场主要受右侧边缘上洗气流涡与上层建筑尾涡的影响;-15°风向时,甲板上方流场主要受左侧边缘上洗气流涡的影响.
In order to study the influence of wind directions on the flow field structures of deck,numerical simulation method was used to solve the air flow field on the upper deck of the ship. Streamline pattern and vorticity distribution of the flow field with different wind directions were analyzed. The vortices in the flow field were classified,and the causes,evolutions and mutual effects of different vortices were elaborated.Results show that the front part of the flow field,with wind from 0° direction,is influenced by the bow separation vortex,and the superstructure shedding vortex influence a small area of rear deck behind the superstructures. The flow field,with wind from starboard 15° direction,is mainly influenced by the right upwash vortex and the superstructure shedding vortex.The flow field,with wind from larboard 15° direction,is mainly influenced by the left upwash vortex.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2016年第1期57-64,共8页
Journal of Dalian Maritime University
基金
国家自然科学基金青年基金资助项目(51409031)
关键词
舰船
甲板
流场
旋涡
计算流体力学(CFD)
数值模拟
warship
deck
flow field
vortex
computational fluid dynamics(CFD)
numerical simulation