Effect of Time Step in Return Bend Upstream & Downstream Flow for Bubbly Flow Pattern and Pressure Drop Characteristics: A CFD Analysis

Abstract

A return bend pipe is designed to avoid the need for an abrupt change in direction and orientation during the concurrent oil-water flow. For different sets of the superficial velocities of kerosene with water, the Volume of Fluid (VOF) model based on the Eulerian-Eulerian approach provided in Fluent was used to determine the flow pattern and local pressure drop characteristics. The present work deals with kerosene-water flow in a return tube bend (curvature 2