Network simulation of the electrohydrodynamic ion drag energy pump with electrical Reynolds number, slip and source effects

BEG, Osman, ZUECO, J. and LOPEZ-OCHOA, L. M. (2011). Network simulation of the electrohydrodynamic ion drag energy pump with electrical Reynolds number, slip and source effects. International Journal of Applied Mathematics and Mechanics, 6 (6), 78-95.

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Abstract

A network numerical study is conducted of the one-dimensional electrohydrodynamic (EHD) ion drag pumping model in this article, for unipolar ions, including conduction current effects. The case of zero electrical field at the emitter is considered. Constant properties are assumed and the transport equations formulated for charge density, electrical field, electrical potential and pump efficiency. Three dimensionless parameters are shown to dictate the flow, namely the electrical Reynolds number (ReE), Electrical slip number (Esl) and the electrical source number (Es). The influence of these parameters over a wide range of values, in particular electrical Reynolds number, on the dimensionless charge density distribution (�*), dimensionless electrical field (E*), electrical potential versus axial coordinate (z*), and pump efficiency (η) versus electrical Reynolds number (from zero to 300) are studied. The present analysis extends the earlier study by Seyed-Yagoobi et al. (Seyed-Yagoobi et al.1995) by considering in more detail the effects of intermediate electrical Reynolds numbers (ReE = 5, 10, 20, 50, 100, 150), and also the interactional effects of electrical source and electrical slip number, on transport variables. The present study finds applications in EHD unipolar dc pump engineering, renewable energy systems, microfabrication technologies, space propulsion etc.

Item Type:	Article
Research Institute, Centre or Group:	Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group
Depositing User:	Helen Garner
Date Deposited:	06 Apr 2011 15:45
Last Modified:	06 Apr 2011 15:45
URI:	http://shura.shu.ac.uk/id/eprint/3456

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