空泡外形测量与分析方法研究  

On Methods of Cavity Profile Measurement and Analysis

作　　者：袁绪龙[1] 张宇文[1] 刘乐华[1] 

机构地区：[1]西北工业大学航海工程学院一系,陕西西安710072

出　　处：《实验力学》2006年第2期215-219,共5页Journal of Experimental Mechanics

基　　金：国防重点实验室基金(51443070204HK0301)资助

摘　　要：空泡外形及其特征参数是超空化试验研究的一个重要方面,它的测量和分析是一个耗时而又存在较大误差的过程。本文研究了空泡外形记录、测量、分析的全过程,提出了空泡外形的数字化测量、处理方法,采用椭圆拟合法进行了空泡外形特征参数的识别,研制了空泡图像的测量和分析处理系统,实现了空泡图像测量和处理的自动化、数字化与标准化,同时也提高了空泡图像测量的精度与可信度。Cavity profile and its parameter is an important aspect in supercavitation experiment.The procedure of measurement and analysis is usually time-consuming and often accompanies with error.The procedure of recording,measuring and analyzing cavity profile was studied.The elliptical fitting technique was used to identify the cavity parameter from measuring data.A program of measuring and analyzing cavity profile was developed.A cavity profile measuring and analyzing system(CPMAS) was built up.The system is auto...

关 键 词：超空化试验 空泡测量 数字化 椭圆拟合法 

分 类 号：TV131.32[水利工程—水力学及河流动力学]