基于DPIV的河工模型试验流速数据处理与分析  

Processing and analysis on flow velocity data of river model test based on DPIV

作　　者：王鹏涛[1] 李彬[1] 于国辉[1] 孙东坡[1] 

机构地区：[1]华北水利水电学院水利学院,河南郑州450011

出　　处：《人民长江》2010年第2期73-76,共4页Yangtze River

基　　金：水利部"948"计划资助项目(200718)

摘　　要：利用水流运动的基本规律,对DPIV测量结果中的错误信息进行了判别和剔除;以MATLAB为工具,采用流体运动的连续性方程、Kriging方法等对剔除错误信息后的有效数据进行离散数据点的网格插值,可得到全流场以及各个量测断面的流速分布;利用计算水力学理论,进一步探讨了流线、等流速线、涡度和涡线等流场特征参数的计算方法。The errors of the measurement data by DPIV are differentiated and eliminated according to the basic law of water movement. By using MATLAB, we can obtain the whole flow velocity field with interpolation of the discrete data points by using the continuity equation for fluid motion, Kriging interpolation methods and so on. Finally, we further discuss the computation methods for the characteristic parameters such as streamlines, velocity isolines, vorticity and vortex lines by the theory of hydraulics.

关 键 词：数字粒子图像测速 MATLAB 流速矢量 KRIGING插值 河工模型试验 

分 类 号：TV83[水利工程—水利水电工程]