摘要
文章对于五孔探针的数据处理方法进行了研究,发展出改进的基于最小二乘法的数据处理方法。通过与三维线性插值法进行全面的对比,证明了改进的最小二乘法的精度全面优于线性插值法,该方法具有在变马赫数条件下一次校准的通用性和便利性,且解决了插值法不能给出显式数学模型的弊端,为后续进行自动化的采集测试奠定了基础。
Data processing methods for five-hole probe are investigated and a new method basing on the least square method is developed. By comparing with the three-dimensional linear interpolation method, it proues that the least square method is more superior in versatility and convenience. The disadvantage that explicit mathematical model couldn＇t be given by interpolation method is overcame. And this will lay the foundation for the future automated sampling and testing system.
出处
《东方汽轮机》
2015年第1期11-15,共5页
Dongfang Turbine
关键词
五孔探针
最小二乘法
数据处理
数学模型
five-hole probe
least square method
data processing
mathematical model
