国内主力低速风洞大迎角实验的不确定度水平研究  

Study on the test uncertainty level at high angles of attack for domestic capital low-speed wind tunnels

作　　者：田学诗[1] 司永昌[1] 

机构地区：[1]中国航空工业空气动力研究院,哈尔滨150001

出　　处：《实验流体力学》2007年第1期73-76,共4页Journal of Experiments in Fluid Mechanics

摘　　要：笔者将AGARD-AR-304不确定度评估方法推广到大迎角领域,给出计算低速风洞大(小)迎角实验不确定度的工程方法。相应的计算软件已成功地用于国内主力低速风洞实验的不确定度评估,完成了5座风洞8个模型大迎角实验的不确定度评估,给出了我国主力低速风洞大(小)迎角实验的不确定度水平。This report has conducted to extend the uncertainty assessment method of AGARD-AR-304 into the field of high angle of attack. The report presents an engineering method for calculating the uncertainty of experimental measurements for low speed wind tunnel tests at high or small angle of attack. Corresponding calculation software has been apllied to uncertainty assessments of tests for domestic capital low-speed wind tunnels successfully. Uncertainty assessments of tests on eight models in five wind-tunnels at high angles of attack are completed. Uncertainty level of fighter tests at high angles of attack for domestic capital low-speed wind tunnels is given.

关 键 词：低速风洞 大迎角 非对称涡 精度 不确定度 

分 类 号：V211.71[航空宇航科学与技术—航空宇航推进理论与工程]