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

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.