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International Journal of Engineering، جلد ۲۸، شماره ۹، صفحات ۱۳۴۳-۱۳۵۰
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عنوان انگلیسی Numerical Study of Electro-thermo-convection in a Differentially Heated Cavity Filled with a Dielectric Liquid Subjected to Partial Unipolar Injection
چکیده انگلیسی مقاله The Coulomb force applied by an electric field on any charge present in a dielectric liquid may cause fluid motion. At high applied electric fields in an insulating liquid, electric charge carriers are created at metallic/liquid interfaces, a process referred to as ion injection, and result from electrochemical reactions. In this article we deals with the problem of electro thermal convection in a dielectric liquid placed in a square cavity and subjected to the simultaneous action of a thermal gradient and an electric field. Thus the aim is to analyze, from a numerical point of view, the evolution of flow structure, charge distribution and heat transfer for the case of a strong injection. The studied configuration is the following: the vertical walls were differentially heated; the horizontal walls adiabatic and only part of the bottom wall (33% of the total length) contributes to the charge injection. Three possible configurations are treated depending on the position of the injection zone: so we identify an injection from the left, the middle and finally the right.
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نویسندگان مقاله Philippe Traore |
Département Fluide-Thermique-Combustion, Institut PPRIME

Habib Ben aissia |
energy department, National Engineering School of Monastir

Naceur Borjini |
Department of Energy, National Engineering School of Monastir

walid hassen |
Department of Energy, National Engineering School of Monastir

نشانی اینترنتی http://www.ije.ir/article_72584_b3cc7ec6f803635def52177ca0042fe1.pdf
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زبان مقاله منتشر شده en
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