Review of the calibration methods and devices for wall shear stress

Wall shear stress measurement with micro sensors is an effective means to study the flow friction. It is fundamental and important work to calibrate the sensors accurately. Three static and two dynamic calibration methods are introduced in this paper. The calibration devices, working principles, and behavioral models of wall shear stress measurement are analyzed. The features of calibration methods are summarized, and advice is provided for selecting the proper calibration method.