| 试验数据中不确定参数的修正方法研究 |
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| 引用本文： | 张小莉,张一帆.试验数据中不确定参数的修正方法研究[J].航空计算技术,2010,40(4):39-42. |
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| 作者姓名： | 张小莉 张一帆 |
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| 作者单位： | 中国航空计算技术研究所,陕西,西安,710068 |
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| 摘 要： | 采用Kriging方法和CFD技术对风洞试验中的不确定参数——马赫数和迎角进行修正研究。以RAE2822翼型的试验数据作为研究对象,在不确定参数的变化区域内,分别建立以升阻力和压力分布为目标的函数,并采用Kriging方法对函数值进行插值,得到CFD结果和试验值的吻合较好的不确定参数值,以达到对试验参数修正的目的。计算结果说明方法对数值模拟结果精度的提高有一定的研究和应用价值。
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| 关 键 词： | Kriging方法 数值计算 风洞试验 湍流模型 |
Research on Correction of Experimental Uncertain Parameters |
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| ZHANG Xiao-li,ZHANG Yi-fan.Research on Correction of Experimental Uncertain Parameters[J].Aeronautical Computer Technique,2010,40(4):39-42. |
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| Authors: | ZHANG Xiao-li ZHANG Yi-fan |
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| Institution: | (Aeronautical Computing Technique Research Institute,Xi′an 710068,China) |
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| Abstract: | The proposed methodology for identification of optimal wind-tunnel data corrections is illustrated which based on RAE2822 wing profile.Mach number and the angle of attack are considered as uncertain parameters.Within the range of variation of the uncertain parameters,two different functions are developed which are aimed at the least error between CFD and wind tunnel results.The uncertain parameters are optimized by CFD and by using Kriging method.The results show the efficiency of the method. |
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| Keywords: | Kriging method CFD wind tunnel uncertain parameters |
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