Electrohydrodynamic Kelvin-Helmholtz Instability in a fluid Layer Bounded above by a Porous Layer and below by a Rigid Surface

Chavaraddi, Krishna B and Katagi, N N and Pai, N P (2011) Electrohydrodynamic Kelvin-Helmholtz Instability in a fluid Layer Bounded above by a Porous Layer and below by a Rigid Surface. International Journal of Engineering and Technoscience, 2 (4). pp. 281-288. ISSN 0976-9293

[img]
Preview
PDF
NPPai_pub1lication.pdf

Download (239kB)
Official URL: http://www.techsciencepub.com/ijets/vol2issue4.php

Abstract

The surface instability of Kelvin-Helmholtz type bounded above by a porous layer and below by a rigid surface is investigated using linear stability analysis. Here we adopt the theory based on electrohydrodynamic as well as Stokes and lubrication approximations. We replace the effect of boundary layer with Beavers and Joseph slip condition. Here we have studied the effect of electric field on KHI in a fluid layer bounded above by a porous layer and below by a rigid surface. The dispersion relation is obtained through normal mode technique using suitable boundary and surface conditions and results are depicted graphically. From this it is clear that the effect of electric field with porous layer is more effective than the effect of compressibility in reducing the growth rate of RTI. Also, these results shows that with a proper choice of electric parameter it is possible to control the growth rate of EKHI and also it is found that the electric field stabilizes the system.

Item Type: Article
Uncontrolled Keywords: Electrohydrodynamics, KHI, BJ slip condition, porous layer
Subjects: Engineering > MIT Manipal > Mathematics
Depositing User: MIT Library
Date Deposited: 19 Oct 2011 09:29
Last Modified: 19 Oct 2011 09:29
URI: http://eprints.manipal.edu/id/eprint/1310

Actions (login required)

View Item View Item