盒式机翼布局气动特性研究  

Aerodynamic Characteristic Research for Box-Wing Aircraft

作　　者：刘学强[1] 李青[2] 柴建忠[2] 伍贻兆[1] 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016 [2]中国一航第一飞机设计研究院,西安710089

出　　处：《南京航空航天大学学报》2007年第6期722-725,共4页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：采用数值模拟的方法研究了盒式机翼布局的气动特性。在数值模拟过程中,控制方程为雷诺平均N-S方程,采用基于非结构网格的有限体积方法进行求解。空间离散采用了Osher逆风格式,时间离散则采用五步Runge-Kutta格式。紊流模型采用了S-A方程模型。对盒式机翼布局外形在不同状态下的流场进行了数值模拟,给出了每个状态下的气动参数,并进行了分析,结果显示盒式机翼布局具有较好的气动特性。Aerodynamic characteristics of box-wing are studied by the numerical method and the flow mechanisms of flows are analyzed. The governing equations are Reynolds-averaged Navier-Stokes equations solved by the unstructured finite volume method. Osher scheme is used for spatial discretisation and five-stage Runge-Kutta scheme is applied for temporal discretisation. S-A equation turbulence model is adopted. The flowfield of box-wing at different attack angles is simulated and the aerodynamic forces are obtained. The research is helpful to understand the aerodynamic characteristics and flow mechanisms for box-wing, thus providing reasonable reference for box-wing design.

关 键 词：盒式机翼 气动特性 数值模拟 有限体积法 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]