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Flight-Testing of a MEMS Wall Shear Stress Thermal Sensor on a Microlight Aircraft | IEEE Conference Publication | IEEE Xplore

Flight-Testing of a MEMS Wall Shear Stress Thermal Sensor on a Microlight Aircraft


Abstract:

This paper reports the realization of thermal MEMS (Micro Electro-Mechanical Systems) sensors designed for wall shear stress measurement during real flight on a microligh...Show More

Abstract:

This paper reports the realization of thermal MEMS (Micro Electro-Mechanical Systems) sensors designed for wall shear stress measurement during real flight on a microlight aircraft. Based on constant temperature anemometry and calorimetric principle, the micro-sensors measure the viscous shear stress occurring at the wall of a structure interacting with a fluid flow and detect the flow direction. A proper packaging was realized for ensuring a flush but robust integration of the devices on a pod fixed on a microlight aircraft. Real flight-testing demonstrated the ability of the micro-sensors to realize aerodynamic measurements up to 250 km/h on the microlight aircraft.
Published in: 2023 IEEE SENSORS
Date of Conference: 29 October 2023 - 01 November 2023
Date Added to IEEE Xplore: 28 November 2023
ISBN Information:

ISSN Information:

Conference Location: Vienna, Austria

Funding Agency:


I. Introduction

Aircraft instrumentation is mainly composed of average measurement sensors indicating the mean velocity, the mean altitude the mean exterior temperature and so on, of the aircraft. However, the localized values of velocity and wall shear stress on the plane is of great interest, particularly for flow control applications. Flow control aims at locally manipulating the turbulent flow field to induce favorable changes in the main performances such as decreasing the drag or the noise radiation. Controlling turbulence then requires the measurement of its localized properties and the today instrumentation of aircraft is not sufficient. A network of small sensors, placed strategically on the plane, could give important information on the interaction of the main flow field with the structure.

References

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