实验流体力学2018，Vol.32Issue(1)：84-89,6.DOI:10.11729/syltlx20170068
螺旋桨滑流与平尾深失速效应耦合影响试验研究
Experimental research on the coupling effect of propeller slipstream and flat tail deep stall on aerodynamic characteristics of airplane
李兴伟 1李聪 1徐传宝 1李盛文1
作者信息
- 1. 中国航空工业空气动力研究院,哈尔滨 150001
- 折叠
摘要
Abstract
The influence of propeller slipstream on aerodynamic characteristics of conventional layout turboprop aircraft is studied at large attack angle by using propeller aircraft dynamic simu-lation test.The dynamic simulation test is curried out in FL-9 wind tunnel of Aerodynamics Re-search Institute of AVIC.The propeller is driven by servo motor.The test angle of attack range is 0°~50°,and the wind speed range is 30~50m/s.The conventional single strut is used at the normal attack angle test,while the special prebending strut is used at the large attack angle test. The coupling effect of flat tail deep install and propeller slipstream is studied detailedly.The test results show that the propeller slipstream increases lift and drag forces of the test model,and de-creases the longitudinal static stability,and these features also exist at large attack angel test.In addition,the slipstream will make the deep stall effect of flat tail worse,and the flat tail will be harder to get out of stall when the flat tail entering the coupling influence area of slipstream and wing wash flow at the large angle test condition.That means the range of attack angle effected by deep stall will be larger and flat tail deep stall effect is aggravated.关键词
螺旋桨/滑流影响/深失速效应/风洞试验Key words
propeller/slipstream effect/deep stall effect/wind tunnel test分类
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李兴伟,李聪,徐传宝,李盛文..螺旋桨滑流与平尾深失速效应耦合影响试验研究[J].实验流体力学,2018,32(1):84-89,6.
