Design and Application of Gust Producing System in Boundary Layer Wind Tunnel

Dynamic speed control system based on industrial automatic software platform in environmental wind tunnel is established, and gust wind sequence simulation and control means is developed in this paper. With the use of RS232/RS485 interface and Modbus communication protocol, connection and communication between computer and ACS400 frequency converter are created. Through frequency conversion to wind tunnel´s power system, sinusoidal wind sequence simulation in environmental wind tunnel under computer´s monitor is completed. The study in this paper provides research base and effective measures for further study of various typical gust wind sequence simulation in wind tunnel.