GLOBAL IMAGING METHOD FOR MEASURING IONIC WIND IN THE VICINITY OF THE HV POWERED ELECTRODE

1 KALOUS Tomáš
Co-authors:
1 SOUKUPOVÁ Julie 1 VOSÁHLO Josef 2 JAŠÍKOVÁ Darina
Institutions:
1 TUL - Technical University of Liberec, Faculty of Textile Engineering, Department of Nonwovens and Nanofibrous Materials, Liberec, Czech Republic, EU
2 TUL - Technical University of Liberec, Institute for Nanomaterials, Advanced Technology and Innovation, Department of Physical Measurements, Liberec, Czech Republic, EU
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
201-206
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
13 views / 5 downloads
Abstract

This paper describes the measurement of the electric wind phenomenon via using Global Imaging methods. Electric wind can be described as movement of the air generated by free ions metal object (in our case electrodes) which are powered by high voltage. This physical phenomena is a vital part of the AC electrospinning technology that was developed at Technical university of Liberec. We visualize and measure electric wind velocities around vicinity of the electrode. Measurements are done with our custom build setups. Both high voltage power source system and chamber are original pieces of equipment. We substitute nanofibrous sleeve, the product of the AC electrospinning with various electrically neutral monodispersed particles. The differences in particles are mainly conductivity and polarizability. Particles are accelerated by movement of the air and then lightened by laser and recorded on high speed camera. The outputs of our measurements are vector maps that clearly describe movements of the air around electrode.

Keywords: AC nanofibers, Particle tracking velocimetry (PIV), ionic wind
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