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Numerical Simulation of Flow and Electric Field in a Corotron Over a Moving Substrate

[+] Author Affiliations
Parsa Zamankhan, Goodarz Ahmadi

Clarkson University, Potsdam, NY

Fa-Gung Fan

Xerox Corporation, Webster, NY

Paper No. FEDSM2005-77233, pp. 687-690; 4 pages
  • ASME 2005 Fluids Engineering Division Summer Meeting
  • Volume 1: Symposia, Parts A and B
  • Houston, Texas, USA, June 19–23, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4198-7 | eISBN: 0-7918-3760-2
  • Copyright © 2005 by ASME


The steady state airflow and electric field distributions in a corona device (corotron) during charging of a moving dielectric substrate (photoreceptor) for different operating conditions are studied. The set of two-way, fully-coupled electro-hydrodynamics governing equations is used in the analysis and parametric studies are performed. The effects of wire voltage, photoreceptor speed on photoreceptor charging, airflow, charge density and electrical potential are studied. It is shown that the charging is strongly affected by the wire voltage and the substrate speed. The results also show the importance of corona effect on the flow structure in the device.

Copyright © 2005 by ASME



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