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Chemical sensing; micro air vehicle; air suction system; miniature axial flow fan; aerodynamic efficiency; Reynolds analogy

This paper describes the design of a miniature air suction system to house a chemical sensor. It has been designed to improve the aerodynamic chemical sensing efficiency and to have a low weight since it is meant to be mounted on a micro air vehicle. The design is done around a readily available miniature axial flow fan by computational methods. A converging-diverging shape for the air suction system with the sensor disc having a central hole and mounted at the throat is proposed as good design concept. The systematic approach hasled to a light weight system with high aerodynamic efficiency even under extreme flow conditions that may be caused by MAV manoeuvre or cross winds.

M D DESHPANDE¹ M SIVAPRAGASAM² S UMESH²

1. Formerly, M S Ramaiah University of Applied Sciences, Bengaluru 560 058, India
2. Department of Aerospace Engineering, Faculty of Engineering and Technology, M S Ramaiah University of Applied Sciences, Bengaluru 560 058, India

Published

11 May 2020

Manuscript received

25 May 2017

Manuscript revised

23 March 2020

Accepted

26 March 2020