基于微型压力传感器阵列的边界层分离点检测方法

 为了检测边界层的分离点,探讨了根据表面压力分布变化判定分离点的检测方法,提出了基于微机电系统(MEMS)技术和柔性衬底的微型压力传感器阵列的结构方案,可实现在线实时测量,并满足非平面表面的流体测量要求;同时提出了1种分离点检测的判定方法,并通过二维圆柱绕流仿真验证了该方法的正确性和有效性。微型压力传感器阵列的引入,拓宽了边界层分离点检测的解决途径。

Detection Method of Boundary-Layer Separation Point Based on Micro Pressure Sensor Array

In order to detect the point of boundary layer separation,a measuring method based on the change of surface pressure distribution is discussed,and a design of flexible substrate based micro pressure sensor array is also proposed.This array can achieve real-time online measuring while meeting the measuring requirement of non-planar surface.The paper studies a determination method used to detect separation point and proves its validity through a flow simulation of 2D column.The introduction of micro pressure sensor array expands ways detecting boundary layer separation point.