基于数值模拟的翼身融合布局飞机上悬式发动机布置技术

doi:10.7527/S1000-6893.2019.23051

翼身融合民机技术专栏

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基于数值模拟的翼身融合布局飞机上悬式发动机布置技术

赵振山, 冯剑, 苗树明, 杜羽

航空工业空气动力研究院高速高雷诺数气动力航空科技重点实验室, 沈阳 110034

收稿日期:2019-03-25 修回日期:2019-04-03 出版日期:2019-09-15 发布日期:2019-05-29
通讯作者: 赵振山 E-mail:shanzhen987@163.com
基金资助:
民用飞机专项研究（MJZ-2014-F-08）

Blended-wing-body aircraft overhanging engine layout technology based on numerical simulation

ZHAO Zhenshan, FENG Jian, MIAO Shuming, DU Yu

High Speed and High Reynolds Number Aerodynamics Key Laboratory, AVIC Aerodynamics Research Institute, Shenyang 110034, China

Received:2019-03-25 Revised:2019-04-03 Online:2019-09-15 Published:2019-05-29
Supported by:
Civil Aircraft Special Research (MJZ-2014-F-08)

摘要/Abstract

摘要： 发动机进排气对飞机气动特性具有重要影响。为了评估翼身融合布局（BWB）飞机上悬式发动机不同布置方式对全机气动特性的影响，首先开展了发动机短舱进排气与全机流场耦合的数值模拟技术研究，验证了计算方法的正确性。在此基础上，针对发动机安装于翼身升力面之上的BWB运输类飞机，开展飞机巡航飞行条件下，发动机不同支撑高度下沿流向及展向不同安装位置的进排气与全机流场耦合数值模拟，评估发动机不同布置方式对全机气动特性的影响，形成发动机不同布置方式影响的规律性结论。

关键词: 翼身融合, 上悬式发动机, 短舱, 进排气, 气动特性

Abstract: Engine intake and exhaust have important influence on aircraft aerodynamic characteristics. To evaluate the aerodynamic characteristics of Blended-Wing-Body (BWB) aircraft with different overhanging engine layout modes, the numerical simulation technology of simulating the coupling between the intake and exhaust of the engine nacelle and the flow field of the aircraft is first carried out to verify the correctness of the calculation method. On this basis, a numerical simulation of the coupling between intake and exhaust of aircraft with different supporting heights, different streamwise and spanwise positions of the engine under the condition of aircraft cruising is carried out to evaluate the different layouts of the engine. The influence of different layout modes on the aerodynamic characteristics of aircraft is evaluated, and the regularity of the influence of different layout modes of engine is formed.

Key words: blended-wing-body, overhanging engine, nacelle, intake and exhaust, aerodynamic characteristics

中图分类号:

V211.3

赵振山, 冯剑, 苗树明, 杜羽. 基于数值模拟的翼身融合布局飞机上悬式发动机布置技术[J]. 航空学报, 2019, 40(9): 623051-623051.

ZHAO Zhenshan, FENG Jian, MIAO Shuming, DU Yu. Blended-wing-body aircraft overhanging engine layout technology based on numerical simulation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(9): 623051-623051.

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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

基于数值模拟的翼身融合布局飞机上悬式发动机布置技术

Blended-wing-body aircraft overhanging engine layout technology based on numerical simulation

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