圆形管道风速测定与校正方法实验  

Experimental study on determination and correction method of wind speed in circular pipe

作　　者：周西华[1,2] 孟乐[1] 李诚玉[1] 冯寸寸[1] 周毓博 史美静[1] 

机构地区：[1]辽宁工程技术大学安全科学与工程学院,辽宁阜新123000 [2]矿山热动力灾害与防治教育部重点实验室,辽宁阜新123000 [3]阜新实验中学,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2012年第6期801-804,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省自然科学基金资助项目(20092199);辽宁省教育厅基金资助项目(20060389)

摘　　要：针对通常所用的风速传感器只能监测某一点的风速,不能准确监测断面平均风速的问题,采用实验室研究测试和数值分析的方法,对圆形断面风速分布进行研究.根据断面中垂线上18个点的实测风速值,得出通过中垂线上某一点风速求该断面平均风速的校正系数.经验证,利用该风速校正系数能得出较为精确的断面平均风速值,为风速传感器的校正提供了一种技术途径.Currently the wind sensor commonly used can only monitor the wind speed at one point,not the average wind speed at a cross-section.In order to overcome this problem,this paper investigates the wind speed distribution at a round section using the methods of laboratory test and numerical analysis.Based on the measured wind speeds at 18 points in the perpendicular bisector of a section,the correction coefficients for calculating average wind speed at the section using the wind speed at one point have been obtained.The study shows that a more accurate average wind speed at a cross-section can be obtained by using wind speed calibration coefficients.The study provides a technical mean for wind sensor calibration.

关 键 词：圆形管道 风速分布 皮托管 速压 校正系数 风速传感器 风量监测 线性关系 

分 类 号：TB937[一般工业技术—计量学]