摘要
海洋事故频发,传统的救生装置具有不能进行及时救援和易受环境影响的缺陷,使得救援十分困难,因此新型救生装置应运而生。文章通过对三体叉式和整体式2种不同线型的新型救生装置进行阻力性能的数值仿真,分析其在空载、搭载儿童、搭载成人和极限4种载重工况下不同速度(0.5 m/s,1.0 m/s,1.5 m/s,2.0 m/s)时的流场性能,对比2种救生装置的阻力性能,得出以下结果:相较于A型三体叉式救生装置,B型整体式救生装置的侧体对装置的阻力性能影响更大,且搭载重量越大,其阻力先增后减;救生装置表面高压的分布区域会随速度变大而发生变化,由前体向侧体后移,高低压差是影响阻力大小的关键因素。研究结果对新型救生装置的优化提供了一定的数据支撑。
With the frequent occurrence of marine accidents,the traditional life-saving devices have the defects of being unable to rescue in time and vulnerable to the environment,making rescue very difficult,so new life-saving devices have emerged.In the paper,the numerical simulation of the resistance performance of new life-saving devices with two different line types such as the three-body fork type and the integral type are carried out,through which the flow field characteristics with different speeds(0.5 m/s,1.0 m/s,1.5 m/s,2.0 m/s)are analyzed under 4 loading conditions such as no-loading,carrying children,carrying adults and extreme loading.Comparing with the resistance performance of the two life-saving devices,the results can be gained that comparing with the A-type three-body fork-type life-saving device;the side body of the B-type integral-type life-saving device has larger influence on the resistance performance of the device.And with the carrying weight is getting larger,the resistance increases first and then decrease.The distribution area of the high pressure surface of the life-saving device changes with the speed,from the front to the side body.The high and low pressure differential is the key factor affecting the pressure resistance.The research in the paper provides some data support for the optimization of new life-saving devices.
作者
李永正
曹稼秀
张瑞瑞
王珂
窦立远
陈杰
LI Yongzheng;CAO Jiaxiu;ZHANG Ruirui;WANG Ke;DOU Liyuan;CHEN Jie(Jiangsu University of Science and Technology,School of Naval Architecture&Ocean Engineering,Jiangsu Zhenjiang 212003,China;Jiangsu University of Science and Technology,Deep Blue Honor school,Jiangsu Zhenjiang 212003,China)
出处
《船舶工程》
CSCD
北大核心
2020年第5期51-55,89,共6页
Ship Engineering
基金
2020江苏省研究生科研与实践创新资助项目
国家自然科学基金资助项目(51709134)
江苏省自然科学基金资助项目(BK20160559)。
关键词
静水阻力
流场性能
新型救生装置
CFD
static resistance
flow field performance
new life-saving device
CFD
