盒式机翼布局气动特性研究

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 Characteristic Research for Box-Wing Aircraft

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.