环量控制尾梁实验研究

介绍了带环量控制尾梁的直升机模型在风洞中和旋翼下的测压实验。根据测量数据计算出尾梁上气动力随环量控制参数的变化情况，并绘制成曲线。主要研究动量系数和缝隙几何参数对圆柱尾梁上气动力的影响。

Experimental Study of Circulation Control Tail Boom

A helicopter model with circulation control tail boom was designed and tested to measurc the pressure distribution on tail boom surface with the model in tunnel and under rotor respectively. The aerodynamic forces on the tail boom have been calculated and their changes with the circulation control variables were drawn in curves.The main purpose of the test was to study the effect of the momentum coefficient and the slot's geometry variables on the aerodynamic forces of the circulation control tail boom; The flow patterns on the tail boom were also tested. By discussing the test results, circulation control and its application was studied. Reasonable explanations have been given about the test results and some new conclusions have been obtained.