摘要
为探索气泡高速艇在波浪中的减阻效果及运动性能,基于RANS方法,应用Overset网格技术、数值造波、HRIC-VOF方法及6-DOF运动模型构建气泡高速艇静水及波浪中的数值水池,阻力计算与试验值的偏差小于4.59%,纵向运动计算值与试验值偏差小于6.4%。进而分析了气层对B.H.型高速艇波浪中阻力、纵向运动的影响规律,研究了艇体运动对气层面积与形态的影响规律,获得了波浪中气层-艇体相互作用的力学过程;气层对垂荡的影响甚微,对纵摇有改善效果;顶浪条件下纵向运动对气层面积的影响不大,波浪中的减阻率仍可达27.24%~30.62%。
To determine the resistance reduction rate of air cavity and its effect on hull motion performance in waves, an RANS-method-based numerical towing tank was established using an Overset mesh, numerical wave, HRIC-VOF scheme, and 6-DOF motion model. The difference in the resistance error obtained between the numeri- cal and experimental results was less than 4. 59% , and the error of longitudinal motion was 6.4%. Furthermore, the effects of air cavity on the resistance and longitudinal motions of B. H. type hull in waves were investigated, and the effects of hull motion on the air cavity area and shapes were simultaneously studied. The mechanics interac- tion laws between air cavity and hull bottom were obtained. The effect of air cavity on heave was negligible ; howev- er, it improved slightly on pitch. In head waves, longitudinal motion slightly affected air cavity area, and the re- sistance reduction rate by air layer in waves was up to 27.24% ~ 30.62%.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2017年第12期1849-1857,共9页
Journal of Harbin Engineering University
基金
广东省教育部产学研结合项目(2012B091000137)
高性能船舶技术教育部重点实验室开放基金课题项目(2015121201)
关键词
气泡高速艇
纵向运动
气层稳定性
数值波浪水池
气层形态
气层面积
减阻率
high-speed air cavity craft
longitudinal motion
stability of air cavity
numerical wave tank
air cavity shape
area of air cavity
resistance reduction rate
