Experimental investigation of key parameters pertinent to multi-hole orifice throttling characteristic

作     者：赵天怡 张吉礼 

作者机构：School of Municipal and Environmental EngineeringHarbin Institute of Technology School of Civil and Hydraulic EngineeringDalian University of Technology 

基　　金：Sponsored by National Natural Science Foundation of China (Grant No50578049) 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2008年第15卷第1期

页      码：9-12页

摘      要：This study firstly defines a set of arrangement rule for perforated holes of multi-hole orifice(MO), and then presents three critical geometrical parameters including total number of performated hole, equivalent diameter ratio and distribution density of perforated holes, which are to quantify MO structure. This paper built the throttling test apparatus for nice test MO plates, which were designed according to orthogonal theory. The experiments were conducted to investigate the effect of three critical geometerical parameters on the pressure loss coefficient of test MOs. Results show that equivalent diameter ratio is the dominant prameter affecting MO throttling characterstic.

主 题 词：experiment orthogonal design multi-hole orifice error analysis 

学科分类：080705[080705] 08[工学] 0807[工学-电子信息类] 

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