基于数值模拟的三杯式风速仪距离常数的研究  

Research on Distance Constant of the Three-Cup Anemometer Based on Numerical Simulation

作　　者：袁琨[1] 许京荆[1] 魏望望 戚严文 朱远[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200Q72

出　　处：《现代科学仪器》2016年第3期43-46,51,共5页Modern Scientific Instruments

摘　　要：摘要通过分析三杯式风速仪的动态响应方程明确了距离常数与动态响应的关系，利用ANSYS软件建立基于计算流体动力学的风速仪三维数值模拟模型，采用滑移网格技术实现风速仪的旋转运动，准确模拟了风速仪的动态响应过程，计算出风速仪的距离常数，并通过不同风速下风速仪动态响应的数值模拟验证了结果的准确性，为三杯式风速仪距离常数的研究提供了新的方法。The relationship between distance constant and the dynamic response of the three-cup anemometer was cleared through the analysis of the dynamic response equation. Based on the computational fluid dynamics, a 3-D numerical simulation model of the anemometer was established through ANSYS software to simulate the dynamic response process of the anemometer exactly and calculate the distance constant, which using sliding grid technology to realize the rotation of the anemometer .The accuracy of the results was verified by the numerical simulation of the anemometer＇s dynamic response in different wind speeds, it provides a new method to research the distance constant of the three-cup anemometer.

关 键 词：风速仪 动态响应 数值模拟 距离常数 

分 类 号：TH765[机械工程—仪器科学与技术]