气象用90m/s回流开闭两用强风风洞设计

为解决国内70 m/s以上风速传感器没有检定和校准能力的问题,本文设计一种风速上限为90 m/s的回流强风气象风洞,并利用移动导轨使试验段具备开闭两用功能.风洞整体尺寸为26 m×10 m×4.2 m(长×宽×高);流速范围闭口时达到0.49～90.74 m/s;控制系统采用物理量全数字化设计,满足计量实验的自动化需求...

Design of 90 m/s Circumfluence Open/Closed Dual-Purpose Strong Wind Tunnel for Meteorological Application

In order to solve the problem that there is no verification and calibration capability for wind speed sensors above 70 m/s in China, this paper designs a wind tunnel with the 90 m/s upper limit of wind speed. The moving guide rail makes the test section with open/close dual purpose. The overall size of the wind tunnel is 26 m×10 m×4.2 m (length, width and height). The velocity range is 0.4 to 90.74 m/s. The control system adopts the fully digital design of physical quantity to meet the automatic demand of metrological experiments. The performance indicators have passed the acceptance test, which means that the tunnel fulfills the test specification for meteorological low speed wind tunnel performance.