基于嵌入激励盘技术的分布式推进滑流数值模拟  

Numerical simulation of distributed propulsion slipstream based on embedded actuator disk technology

作　　者：王元元[1] 陈明环 WANG Yuanyuan;CHEN Minghuan(Institute of Systems Engineering,China Aviation Industry Development Research Center,Beijing 100012,China)

机构地区：[1]中国航空工业发展研究中心系统工程所,北京100012

出　　处：《飞行力学》2020年第6期14-18,共5页Flight Dynamics

摘　　要：螺旋桨滑流影响数值模拟是涡桨飞行器气动设计的一项关键技术,基于非结构混合网格求解器,发展了嵌入式激励盘数值模拟技术。首先,将螺旋桨拉力、扭矩等载荷转化为源项分布形式,基于结构化形式激励盘平面网格与非结构混合网格相交运算,确定插值单元信息。然后,通过单元插值的形式将源项添加到对应的网格单元,并通过标准算例计算验证了方法的有效性。最后,应用该方法对某分布式电推进飞机滑流对全机气动特性的影响进行了计算,进一步验证了该方法的简捷性和高效性。研究结果为考虑滑流影响的涡桨/多旋翼飞行器气动设计提供了更加高效的数值模拟手段。The numerical simulation of propeller slipstream effect is a key technology in the aerodynamic design of turboprop vehicle. Based on the unstructured hybrid grid solver, the embedded numerical simulation technology of the actuator disk is developed. Firstly, the propeller tension, torque loads are transformed into the distribution form of the source term. Based on the intersection operation of the structural actuator disk plane grid and the unstructured hybrid grid, the interpolation element information is determined. Further, the source term is added to the corresponding grid element in the form of element interpolation, and the validity of the developed technology is verified by calculating standard examples. Based on the typical complex aerodynamic configuration, the influence of the distributed propulsion slipstream on the aerodynamic characteristics of the whole aircraft is verified, and the simplicity and efficiency of the method are verified. The technology provides a very effective numerical simulation method for the aerodynamic design of the turboprop/multi-rotor vehicle considering the slipstream effect.

关 键 词：螺旋桨滑流 涡桨飞行器 嵌入式激励盘 混合网格 

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]