串列式扇翼布局流动特性数值研究

doi:10.7527/S1000-6893.2015.0356

流行力学与飞行力学

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串列式扇翼布局流动特性数值研究

史振海¹, 杨未柱², 路秀儒¹, 岳珠峰²

1. 北京机电工程研究所, 北京 100074;
2. 西北工业大学力学与土木建筑学院, 西安 710072

收稿日期:2015-10-23 修回日期:2015-12-10 出版日期:2016-10-15 发布日期:2016-01-25
通讯作者: 史振海,Tel.:010-88534283 E-mail:bigmar@163.com E-mail:bigmar@163.com
作者简介:史振海男,硕士,助理工程师。主要研究方向:飞行器总体设计。Tel:010-88534283 E-mail:bigmar@163.com;杨未柱男,博士研究生。主要研究方向:飞行器多学科优化设计。E-mail:yangweizhu@mail.nwpu.edu.cn;路秀儒男,硕士,高级工程师。主要研究方向:飞行器总体设计。E-mail:jaypp123@126.com;岳珠峰男,博士,教授,博士生导师。主要研究方向:多学科优化设计理论及应用。Email:zfyue@nwpu.edu.cn

Numerical investigation into flow characteristics of tandem fan-wing configuration

SHI Zhenhai¹, YANG Weizhu², LU Xiuru¹, YUE Zhufeng²

1. Beijing Institute of Mechanical and Electrical Engineering, Beijing 100074, China;
2. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710072, China

Received:2015-10-23 Revised:2015-12-10 Online:2016-10-15 Published:2016-01-25

摘要/Abstract

摘要：

扇翼能够通过前缘横流风扇的高速旋转对前方来流进行加速和重新整流。利用这一特点提出了一种串列式扇翼布局，其由一定间距和空间高度分布的前后双排或多排扇翼组成，并基于二维模型对该布局开展了流动数值模拟，分析得到了不同前后间距、高度差以及排数下串列式扇翼布局的升力和推力特性。结果表明，相对单个扇翼，在合适的设计参数下串列式扇翼可得到更大的单排平均升力和推力，其中间距一倍风扇直径的四排扇翼平均升力和推力分别提高了约10%和30%。基于扇翼附近流场分布和翼型上下表面压强分布，分析了引起升力和推力提升的原因。该研究可为未来设计具有更好低速大载荷特性的扇翼飞行器提供参考。

关键词: 扇翼, 气动布局, 流动特性, 间距, 排数

Abstract:

Fan-wing can accelerate and rectify the air inflow through the rapid rotation of crow flow fan in the leading edge. Taking advantage of this distinguishing feature, a tandem fan-wing configuration is put forward, which is composed by double or multiple rows of fan-wings arranged in tandem with certain spacing and spatial distribution. The flow characteristics of the tandem fan-wing configuration are simulated based on two dimensional models, and the lift and thrust loads are calculated for different spacing, height disparities and row numbers. Results indicate that compared to single fan-wing, larger lift and thrust can be obtained by properly designed tandem fan-wing configuration. For instance, the four-row fan-wing with uniform spacing of one fan diameter possesses larger average lift and thrust by about 10% and 30%,respectively. The reason accounting for the improvement of lift and thrust is analyzed based on the flow filed near the fan-wings and the pressure distribution over the airfoils. These investigations can provide useful guidance for the design of future fan-wing aircraft with better low-speed large-load characteristics.

Key words: fan-wing, aerodynamic configuration, flow characteristics, spacing, row number

中图分类号:

V211.4

史振海, 杨未柱, 路秀儒, 岳珠峰. 串列式扇翼布局流动特性数值研究[J]. 航空学报, 2016, 37(10): 2922-2931.

SHI Zhenhai, YANG Weizhu, LU Xiuru, YUE Zhufeng. Numerical investigation into flow characteristics of tandem fan-wing configuration[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(10): 2922-2931.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

串列式扇翼布局流动特性数值研究

Numerical investigation into flow characteristics of tandem fan-wing configuration

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