Title :
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
fDate :
June 30 2008-July 3 2008
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;
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
DOI :
10.1109/ICDL.2008.4622503
