PIV技术在某驳船模型强迫横摇水动力测试中的应用  

Investigation of the hydrodynamic model test of forced rolling for a barge using PIV

作　　者：王晓强[1] 刘怀西 马山[2] 郭春雨[2] WANG Xiaoqiang;LIU Huaixi;MA Shan;GUO Chunyu(Naval Military Representative Office in China Ship Development and Design Center,Wuhan 430064,China;School of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]海军驻中国舰船研究设计中心军事代表室,湖北武汉430064 [2]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《中国舰船研究》2017年第2期49-56,共8页Chinese Journal of Ship Research

基　　金：国防基础科研计划资助项目(B2420132001);国家自然科学基金资助项目(51379045;51679043;51679053)

摘　　要：[目的]为研究船舶横摇过程中粘流场细节以提高横摇阻尼数值模拟精度,[方法]开展了粒子图像测速(PIV)技术在静水强迫横摇水动力测试中的应用研究。首先,采用自制的强迫横摇装置在水池中开展某驳船在不同摇幅和振荡周期下船舶横摇水动力与舭部流场的同步测试。观测舭部粘流场在船体振荡过程中的变化规律,研究横摇阻尼系数随摇幅和周期的变化规律。然后,将模型试验测试结果与计算流体动力学(CFD)软件模拟结果进行对比。[结果]结果表明,CFD预报船舶横摇整体阻尼系数精度较好,但预报的局部流场细节与模型试验测试结果间存在一定的差异,[结论]需在模型试验技术和CFD预报技术上开展进一步研究。In order to study the physical details of viscous flow in ship roll motions and improve the accuracy of ship roll damping numerical simulation,the application of the Particle Image Velocimetry(PIV)technique is investigated in model tests of forced ship rolling in calm water.The hydrodynamic force andflow field at the bilge region are simultaneously measured for barges at different amplitudes and frequencies in which the self-made forced rolling facility was used.In the model test,the viscous flow variation with the time around the bilge region was studied during ship rolling motion.The changes in ship roll damping coefficients with the rolling amplitude and period were also investigated.A comparison of the model test results with the Computational Fluid Dynamics(CFD)results shows that the numerical ship rolld amping coefficients agree well with the model test results,while the differences in the local flow details exist between the CFD results and model test results.Further research into the model test technique and CFD application is required.

关 键 词：粒子图像测速 CFD 横摇运动 横摇阻尼系数 流场测量 

分 类 号：U661.7[交通运输工程—船舶及航道工程]