Wind tunnel investigation of different engine layouts of a blended-wing-body transport  

作　　者：Zheng CUI Guojun LAI Qifeng WANG Yu LIANG Yihua CAO 

机构地区：[1]School of Aeronautic Science and Engineering,Beihang University,Beijing 100083,China [2]COMAC Beijing Aircraft Technology Research Institute,Beijing 102211,China

出　　处：《Chinese Journal of Aeronautics》2023年第9期123-132,共10页中国航空学报（英文版）

基　　金：This study was co-supported by the Beijing Key Laboratory of Simulation Technology for Civil Aircraft Design,China(No.11WX08);Innovation Foundation of COMAC Beijing Aircraft Technology Research Institute,China(No.Y16QT01).

摘　　要：A 2%scale,cruising version of a 450-seat class Blended-Wing-Body(BWB)transport was tested in the China Aerodynamic Research and Development Center’s FL-262.4-by-2.4-meter subsonic wind tunnel.The focus of the wind tunnel test was to investigate the aerodynamic performance of the latest BWB transport design,which would also aid in choosing a final engine arrangement in the three most potential engine integration layouts.The wind tunnel model can be tested with and without the nacelle and has three sets of different nacelle/tail integration positions.Computational Fluid Dynamics(CFD)simulations were performed in engine-aircraft integration design to find appropriate nacelle installing parameters of each layout.The comparison of CFD with experimental results shows good agreement.Wind tunnel measurements indicate that the tail-mounted engine layout produces the minimum drag penalty,while the fuselage-mounted engine layout increases drag the most.Experimental pressure measurement illustrates the effect of nacelle integration on the wing-body surface pressure distribution.This experimental and numerical research provides a reference for future BWB Propulsion-Airframe Integration(PAI)design.

关 键 词：PAI AERODYNAMICS BWB CFD Civil aviation Engine layout Transport aircraft Wind tunnels 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程] V231.3