煤矿安全2024，Vol.55Issue(3)：236-243,8.DOI:10.13347/j.cnki.mkaq.20230770
超声波风速传感器风场误差的数值模拟
Numerical simulation of wind field error of ultrasonic wind speed sensor
摘要
Abstract
In order to study the influence of the wind field error on the measurement results of the mine ultrasonic time difference wind speed sensor,the computational fluid dynamics method was used to analyze the flow field and acoustic channel velocity distri-bution of sensors with different structure types under different wind directions and wind speeds.The research results indicate that the measured wind speed of the opposite-type structure is significantly affected by the wind direction angle than the reflection-type struc-ture.The corrected relative error of the opposite-type structure at a 45 ° wind direction angle is the smallest and better than the reflec-tion-type structure.Among three reflection-type structures,the concave transducers has the smallest impact on wind speed measure-ment,followed by raised transducers,and semi-raised transducers has the greatest impact.The measurement of concave transducers is least affected by the wind direction angle,while the raised and semi-raised transducers have similar effects.Among the three in-stallation methods,the semi-raised installation has better flow field consistency at different flow velocity,and the corrected measure-ment error is the smallest.Choosing an appropriate structural layout for ultrasonic wind speed sensors can improve measurement ac-curacy.关键词
矿用风速传感器/风速测量/超声波时差法/数值模拟/测风误差Key words
mine wind speed sensor/wind speed measurement/ultrasonic time difference method/numerical simulation/wind measurement error分类
矿业与冶金引用本文复制引用
顾仁勇,蒋泽,王璐,郝叶军..超声波风速传感器风场误差的数值模拟[J].煤矿安全,2024,55(3):236-243,8.基金项目
天地(常州)自动化股份有限公司研发资助项目(2023GY2007) （常州）
