Journal of Applied Mechanical Engineering

Aerodynamic characterization of new filters of bioaerosol for INTA investigation aerial platforms

2^nd International Conference on Fluid Dynamics & Aerodynamics

October 19-20, 2017 | Rome, Italy

Suthyvann Sor, Rafael Bardera, Elena Gonzalez, M Angeles Aguilera and Adelaida Garcia Magarino

INTA,
CAB-INTA-CSIC, Spain
Isdefe, Spain

Scientific Tracks Abstracts: J Appl Mech Eng

Abstract:

Statement of the Problem: A prototype of a new filter of bioaersol particles dedicated to biology investigations has been developed. This prototype was designed to be installed on board investigation aerial platforms of INTA. The air, that contains the particles, enters the filter in the upper side. Then the air encounters a mechanical deflector that throws the air and the particles towards the side walls, where particles are collected. Additionally, a high voltage difference is created between the mechanical deflector electrode and the outer metallic plates acting as sides walls, to pull the charged particles to the side walls increasing the number of particles collected. In the down side, a cylindrical tube that has a spline hole in the down side is connected to a vacuum pump that creates a bi dimensional movement of the air. The experimental characterization of the aerodynamic flow was performed to investigate the behavior of the filter when different air intake velocities and different mechanical deflector geometries are employed. Methodology & Theoretical Orientation: Five different impactor filters have been investigated by means of PIV measurements. The width of the filter was 100 mm and the filter span was 200 mm. The air intake velocity ranged from 9 m/s to 20 m/s. Conclusion & Significance: Five filters have been investigated by means of PIV measurements. If the air intake width is decreased, the velocities obtained are higher for the same mass suction. However, the ratio of the horizontal velocity in the impact zone in the wall and the intake velocity decreases. Increasing the plate deflector width increases 10% the velocity between the deflector and the collector walls. However, a gradual deflector allows greater velocities and the impact of the particles in the mechanical deflector is minimum.

Biography :

Suthyvann Sor is an aerospace engineer and has been working at INTA since 1992. He became the head of Advanced Experimental Technique Laboratory in 2000 in the Experimental Aerodynamic Area at INTA. He has been involved in several European projects (GARTEUR AG-37, EXTICE) and National project (ACEPCOR).He has also been involved in the NASA/INTA cooperation on Icing (2010-2016), in which he has developed his PhD on droplet deformation, and trajectory near the leading edge of an airfoil, and he has authored more than 10 papers related to Icing Physics. Currently Dr. Sor is involved in National projects (DFLOW, MEDA, MICRA) funded by the Spanish Ministries of Economy and Competitiveness.