摘要
针对深V船型,采用混合两相流模型开展气幕减阻数值分析,研究了气流量、航速、航行姿态、喷气位置、尾板等因素对喷气减阻率的影响。结果表明:在深V型船底部喷气会导致阻力降低,气流量增加,减阻率增大,存在饱和气流量;航速对减阻率的影响不是单调的;航行姿态对减阻率有较大影响,使得纵倾角增大,减阻率降低;采用多级喷气可以提高喷气减阻率,最大可达12.07%;尾板通过改善航行姿态,使喷气减阻率增加1.57%。
A numerical analysis of resistance reduction by bubbly layer for deep-Vee ship was carried out by using the air-liquid mixture model.The effect of the factors,such as air flow rate,speed,navigation states,air injection location,stern flaps,on resistance reduction rate was investigated.The findings are obtained as follows：（1） If air is injected into water from the ship bottom,the resistance reduction rate increases with air flow until it reaches the saturate level;（2） The reduction rate is not monotonously influenced by the speed;（3） The rate decreases while the trim angle of the hull increases;（4） The reduction rate can be increased to 12% maximally by setting multi-air-injection inlets;（5）Stern flap can increase the rate about 1.57%,due to the improvement of navigation states.
出处
《海军工程大学学报》
CAS
北大核心
2011年第6期31-35,共5页
Journal of Naval University of Engineering
基金
全国优秀博士学位论文作者专项资金资助项目(200551)
关键词
深V船型
气幕减阻
减阻率
deep-Vee ship
resistance reduction by bubbly layer
resistance reduction rate
