【摘要】 通过求解带动量源项的Ｎ－Ｓ方程，模拟了纵列式和横列式双旋翼的流动，给出了两旋翼相互干扰时的流场，特别是桨盘处的下洗速度分布；通过与单旋翼下洗速度分布的比较，分析了双旋翼流场的干扰特性；讨论了此２ 种双旋翼的气动性能。更多还原

【Abstract】 The 3 D incompressible N S equations with momentum source terms are solved to simulate the flow fields of tandem and side by side twin rotor configurations. Induced velocity distributions on rotor plane, aerodynamic properties and general flow fields of twin rotor configurations have been compared with those of single rotors, and the results reveal the aerodynamic interference between two rotors of the twin rotor.更多还原