Effect of convergent angle on non-uniform flow through porous media

Abstract

The effect of convergent angle on the non-uniform flow through porous media was studied in a converging permeameter. The scope of the present paper is to present the relationship between Hydraulic Gradient (I) and Froude Number (F_K²) for flow through porous media with converging boundaries, using intrinsic permeability (K) as characteristic length, and to also show pictorically the relation between linear parameter, a, and non-linear parameter, b, in terms of Media Constant (C_W). In the present case, McCorquodale data of size 1.66 cm was used as media, to develop theoretical curves using friction factor (F_K) and Reynolds number (R_K) relationship, and verified with the help of existing experimental data of different convergent angles.

Keywords:

• converging permeameter
• Froude number
• friction factor
• Reynolds number
• porous media
• intrinsic permeability
• linear and non-linear parameters

Acknowledgments

The authors wish to thank the Ministry of Science & Technology, Department of Science and Technology, New Delhi, authorities for the financial support (grant number: SR/FTP/ETA-22/2005) rendered by them for carrying out the study. The authors also wish to acknowledge the encouragement given by the Director and Management of N.B.K.R. Institute of Science &Technology, Vidyanagar, Nellore District during the course of study.