Numerical Study on the Charge Transport in a Space between Concentric Circular Cylinders
Joint Authors
Source
Journal of Applied Mathematics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-27
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
Electrification is one of the key factors to be considered in the design of power transformers utilizing dielectric liquid as a coolant.
Compared with enormous quantity of experimental and analytical studies on electrification, numerical simulations are very few.
This paper describes essential elements of numerical solution methods for the charge transport equations in a space between concentric cylinders.
It is found that maintaining the conservation property of the convective terms in the governing equations is of the uttermost importance for numerical accuracy, in particular at low reaction rates.
Parametric study on the charge transport on the axial plane of the annular space with a predetermined velocity shows that when the convection effect is weak the solutions tend to a one-dimensional nature, where diffusion is simply balanced by conduction.
As the convection effect is increased the contours of charge distribution approach the fluid streamlines.
Thus, when the conduction effect is weak, charge distribution tends to be uniform and the role of the convection effect becomes insignificant.
At an increased conduction effect, on the other hand, the fluid motion transports the charge within the electric double layers toward the top and bottom boundaries leading to an increased amount of total charge in the domain.
American Psychological Association (APA)
Suh, Y. K.& Baek, K. H.. 2014. Numerical Study on the Charge Transport in a Space between Concentric Circular Cylinders. Journal of Applied Mathematics،Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-464189
Modern Language Association (MLA)
Suh, Y. K.& Baek, K. H.. Numerical Study on the Charge Transport in a Space between Concentric Circular Cylinders. Journal of Applied Mathematics No. 2014 (2014), pp.1-18.
https://search.emarefa.net/detail/BIM-464189
American Medical Association (AMA)
Suh, Y. K.& Baek, K. H.. Numerical Study on the Charge Transport in a Space between Concentric Circular Cylinders. Journal of Applied Mathematics. 2014. Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-464189
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464189