Heat transfer enhancement of a Poiseuille flow by means of electric conduction phenomenon

Author

Yazdani, Miad ; Yagoobi, Jamal Seyed

Author_Institution

Mater. & Aerosp. Eng. Dept., Illinois Inst. of Technol. Chicago, Chicago, IL

fYear

2008

fDate

June 30 2008-July 3 2008

Firstpage

1

Lastpage

4

Abstract

Electrohydrodynamic (EHD) conduction phenomenon involves the interaction of electric field and flow field in a dielectric fluid medium via the process of dissociation and recombination of free charges. This paper numerically studies the effect of electric conduction phenomenon on the heat transfer characteristics of a Poiseuille flow. The numerical domain consists of six electrode pairs positioned along the tube wall. The flow is primarily generated by an external pressure-gradient imposed along the tube. The electric field and electric body force distributions and the resultant velocity fields are presented. The heat transfer enhancements are illustrated under various operating conditions.

Keywords

Poiseuille flow; dissociation; electrodes; electrohydrodynamics; heat transfer; Poiseuille flow; dielectric fluid medium; dissociation; electric body force distributions; electric conduction phenomenon; electric field; electrode pairs; electrohydrodynamic conduction phenomenon; external pressure-gradient; flow field; free charge recombination; heat transfer characteristics; heat transfer enhancement; resultant velocity fields; tube wall; Electric potential; Electrodes; Electrohydrodynamics; Electron tubes; Fluid dynamics; Heat engines; Heat transfer; Resistance heating; Thermal conductivity; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 2008. ICDL 2008. IEEE International Conference on

Conference_Location

Futuroscope-Chasseneuil

Print_ISBN

978-1-4244-1585-4

Electronic_ISBN

978-1-4244-1586-1

Type

conf

DOI

10.1109/ICDL.2008.4622503

Filename

4622503