摘要
[目的]基于数值和试验方法研究汲水斗不同状态下水面飞行器的水动力性能变化规律。[方法]首先,通过试验方法研究水面飞行器放下汲水斗时在不同速度及不同排水量下的水动力性能;然后,采用CFD数值方法求解不同速度下,无、收起和放下汲水斗3种情况下水面飞行器的黏性绕流场。[结果]结果显示,随着速度的增大,在相同汲水量下,水面飞行器的总阻力、升沉幅度均随之增大,纵倾角减小;随着汲水量的增大,其总阻力、纵倾角和升沉幅度增大;汲水斗放下时水面飞行器的总阻力明显增大,升沉增大,但纵倾角减小;汲水斗收起时对水面飞行器的水动力性能影响不大。[结论]所得研究结果对水面飞行器汲水斗的优化设计具有重要指导意义。
[Objectives]The hydrodynamic performance under different bailer conditions based on numerical and experimental methods was investigated.[Methods]The hydrodynamic performance of the seaplane with different displacements under different speeds was studied using an experimental method,and the viscous flow field of the seaplane under three conditions(without bailer,bailer closed,bailer lowered)at different speeds was computed.[Results]The results show that at the same displacement the total resistance and heave amplitude of the seaplane increase,the trim angle decreases,when the speed increases;with displacement increases,the total resistance,trim angle and heave amplitude of the seaplane increase;while the bailer lowers,the total resistance and heave amplitude of the seaplane increase,the trim angle decreases;the effect on the hydrodynamic performance is not obvious as the bailer closes.[Conclusions]The results of this paper are of great significance to the optimal design of water pumping systems of the seaplane.
作者
王晓强
来曙光
肖志坚
WANG Xiaoqiang;LAI Shuguang;XIAO Zhijian(Wuhan Second Military Representative Office,Naval Armament Department of PLAN,Wuhan 430064,China;China Ship Development and Design Center,Wuhan 430064,China;China Special Vehicle Research Institute,Jingmen 448035,China;Aviation Key Scientific and Technological Laboratory of High Speed Hydrodynamic,Jingmen 448035,China)
出处
《中国舰船研究》
CSCD
北大核心
2021年第2期30-35,63,共7页
Chinese Journal of Ship Research
关键词
水面飞行器
汲水斗
汲水效率
汲水载荷
水动力性能
seaplane
bailer
water-drawing efficiency
water-drawing load
hydrodynamic performance
