| Citation: | DU Siliang, JI Mengjiang, TANG Zhengfei, et al. Helicopter anti-torque verification based on cross flow fan technology[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(5): 981-991. doi: 10.13700/j.bh.1001-5965.2016.0394(in Chinese)
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In order to improve the safety of low altitude flight for the helicopter with tail rotor, an alternative anti-torque device has been proposed by using the flow control technology of the cross flow fan. Wind tunnel tests show that the device has the characteristics of lateral force. At the same time, the numerical simulation calculation method of the device has been established. It is concluded that the influence of the cross flow fan rotating speed, the rotor down wash flow and the front flying flow on the aerodynamic characteristics of the anti-torque device is great. The source of the force of the anti-torque device is analyzed. It is proved that the lateral force can be controlled by controlling the speed of cross flow fan and this device can be used as anti-torque device for helicopter.
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