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Investigation of detecting fluid separation point by flexible micro-shear-stress-sensor array
Author(s): LIU Kui, YUAN Wei-zheng, MA Bing-he, DENG Jin-jun, JIANG Cheng-yu
Pages: 71-
76
Year: 2006
Issue:
3
Journal: Experiments and Measurements in Fluid Mechanics
Keyword: wind tunnel test; boundary layer separation; sensor array;
Abstract: 结合边界层分离点附近的剪应力变化规律,提出了在飞行器外表面贴附微型传感器阵列的分离点检测方法,并给出了相应微型剪应力传感器阵列的设计方案。同时提出了基于三极管恒流源电流镜驱动电源设计和滤波衰减电路设计方案,并在NACA0012标准翼型上实现了边界层分离检测系统集成,最后,在低速风洞实验中对传感器阵列的性能和传感器阵列输出信号的处理判断方式进行验证,对实验结果的分析表明本研究制造的微型热敏传感器阵列能够实现对流体边界层分离位置的在线测量。
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