旋转机翼悬停气动特性研究  

Aerodynamic characteristics of hovering rotor/wing

作　　者：孙威[1] 高正红[1] 黄江涛[1,2] 赵轲[1] 

机构地区：[1]西北工业大学翼型叶栅空气动力学国防科技重点实验室,陕西西安710072 [2]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《空气动力学学报》2015年第2期232-238,共7页Acta Aerodynamica Sinica

摘　　要：鸭式旋转机翼(CRW)是一种先进的高速直升机方案,旋翼同时也是机翼,是其最关键气动部件之一。采用结构分区拼接网格技术进行空间离散,分区建立参考系,通过求解多重参考系下的N-S方程来计算旋翼流场,首先以传统的Caradonna-Tung实验旋翼的亚、跨声速悬停流场分析为例验证该方法的可靠性,进而采用该方法对旋转机翼悬停流场进行了数值计算,旋翼拉力计算值和地面实验值吻合较好,结果分析表明旋转机翼的悬停流场有着不同于传统旋翼的流场特性。The Canard Rotor/Wing（CRW） is an advanced high-speed rotorcraft concept. The rotor is also acting as the wing, and is one of the most important aerodynamic components of the plane. Hence, study on the hovering rotor/wing flow fields and its aerodynamic characteristics are of great value in theory and in practice. In this paper, the multi-block structural patched-grid is used to partition the space into several subzones, in which different references are chosen. So the hovering rotor/wing flow fields is calculated by solving Navier-Stokes equations in Multiple Reference Frames（MRF）. The Caradonna-Tung rotor case is computed first to validate the meth- od. Then a rotor/wing case is calculated and the thrust agrees well with experiment data obtained on the ground testing. The analysis indicates that the hovering flow fields for rotor/wing is quite different from those for traditional rotors.

关 键 词：CRW飞机 旋转机翼 悬停 多重参考系 N-S方程 

分 类 号：V212.4[航空宇航科学与技术—航空宇航推进理论与工程]