摘要
以DTMB5415船模为研究对象,基于体视粒子图像测速技术(Stereoscopic Particle Image Velocimetry,SPIV)对压浪板安装前后的船模伴流场及尾流场中多个截面进行测量。PIV测量对船体边界层内流动进行了很好的捕捉,与国际上公开的相关流场信息具有较高的吻合度,补充了DTMB5415基准船模的流场数据库。压浪板的安装会降低桨盘面速度,且压浪板的影响会随着船舶航速的增大而增大,在Fr数为0.28和0.41时,桨盘面平均速度分别降低了0.77%和1.45%。此外,压浪板对流场测点的影响随着距离的减小而增大,在X/LPP为0.95、0.97和0.99这三个截面上的平均无量纲轴向速度分别降低了0.009、0.0273和0.0459。
Based on stereoscope particle image velocimetry(SPIV)measurement system,several sections of the wake field of DTMB5415 ship model are measured before and after the installation of stern flap.Boundary layer flow has been well captured,and has a high degree of agreement with the relevant information about the flow field of the model.Installation of stern flap will reduce the speed on the propeller disk,and its influence will be increased with the increase of ship speed.After installation of the stern flap,average speed on the propeller disk at Fr=0.28 and 0.41 is decreased by 0.77%and 1.45%respectively.In addition,flow field near the stern flap will be influenced greatly.Average dimensionless axial velocity at X/LPP being 0.95,0.97,and 0.99 is decreased by 0.009,0.0273,and 0.0459 respectively after installing the stern flap.
作者
宋科委
解学参
孙聪
郭春雨
王超
李平
SONG Kewei;XIE Xuecen;SUN Cong;GUO Chunyu;WANG Chao;LI Ping(Harbin Engineering University College of Shipbuilding Engineering,Harbin 150001,China;China Ship Development and Design Center,Wuhan 430064,China)
出处
《中国造船》
EI
CSCD
北大核心
2021年第2期1-13,共13页
Shipbuilding of China
基金
哈尔滨工程大学博士研究生科研创新基金(3072020GIP0104)。
