Entrance region flow of a casson fluid in a straight channel

Abstract

The entrance region flow of a Casson fluid in a straight channel has been investigated numerically without making prior assumptions on the form of velocity profile within the boundary layer region, which is determined by a cross-sectional integration of the momentum differential equation for a given distance from the channel entrance. Using the macroscopic mass and momentum balance equations, the thickness of the core, the entrance length, the plug core velocity, and the pressure drop have been obtained at each cross section of the entrance region of the channel for specific values of Casson number. 1992, Taylor & Francis Group, LLC. All rights reserved.