水面泵喷推进自航因子数值与试验研究  

Numerical and experimental investigation on self-propulsion factors of surface pumpjet

作　　者：孙小帅 马骋 钱正芳 韩用波[2] 程红蓉[2] SUN Xiao-shuai;MA Cheng;QIAN Zheng-fang;HAN Yong-bo;CHENG Hong-rong(China Marine Development and Research Center,Beijing 100161,China;China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]中国海洋开发研究中心,北京100161 [2]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶力学》2022年第5期609-616,共8页Journal of Ship Mechanics

摘　　要：针对安装短导管水面泵喷推进器的三体船模,采用CFD方法开展阻力试验、推进器敞水性能试验和自航试验数值模拟,并在拖曳水池开展阻力试验和自航试验,对比数值计算和模型试验得到的船模阻力、推进器自航转速、转子轴向推力和扭矩,使用数值计算结果求解自航因子。结果表明,数值计算求解的裸船体阻力误差小于2.84%,高速(Fr=0.442~0.590)时的自航转速误差小于4.36%,转子轴向推力误差小于1.62%,推力减额约为0.055~0.058,伴流分数约为0.049~0.065,推进效率约为0.567~0.574。Numerical resistance experiment,propulsion open water experiment and self-propulsion experi⁃ment of a trimaran model installed with a short-duct surface pumpjet were carried out using the CFD method.Meanwhile the resistance and self-propulsion experiments were also conducted in a towing tank.Compari⁃sons of the resistance,rotation speed at self-propulsion point,axial thrust and torque of the rotator were made between the numerical simulations and experiments.The propulsion factors were obtained based on the re⁃sults of numerical self-propulsion simulations.The results indicate that(1)the error of the resistance of the bare hull is less than 2.84%;(2)at Fr=0.442-0.590,the error of the rotation speed is less than 4.36%;(3)the error of the axial thrust of rotator is less than 1.62%;(4)the factor of thruster reduction is from 0.055 to 0.058 and the wake fraction is from 0.049 to 0.065;(5)and the propulsion efficiency is from 0.567 to 0.574.

关 键 词：自航因子 三体船 水面泵喷推进器 阻力 

分 类 号：U661.1[交通运输工程—船舶及航道工程]