Applications of Computational Fluid Dynamics To Study: Slurry Flow in Pipeline for Heavy and Extraheavy oil

In this work, we developed a computational fluid dynamics (CFD) model to simulate the slurry flow between the wafers and pad during the chemical mechanical polishing (CMP) process under a multiple-wafer configuration. A serial of simulations were carried out to visualise slurry flow and explore the effects of the process variables concerned on the flow velocity and pressure distributions beneath the wafers. Through the model and simulation, the flow field characteristics were obtained and analyzed under different operating conditions. The results can provide an insight into a fundamental understanding of the slurry flow behaviours under the multiple-wafer configuration and some useful implications for the selection of practical polishing variables.

Download Full-text

Flow Characteristics of Multiphase Glass Beads-Water Slurry through Horizontal Pipeline using Computational Fluid Dynamics

International Journal of Automotive and Mechanical Engineering ◽

10.15282/ijame.16.2.2019.10.0497 ◽

2019 ◽

Vol 16 (2) ◽

pp. 6605-6623 ◽

Cited By ~ 1

Author(s):

Shofique Uddin Ahmed ◽

Rajesh Arora ◽

Om Parkash

Keyword(s):

Fluid Dynamics ◽

Experimental Data ◽

Computational Fluid Dynamics ◽

Pressure Drop ◽

Control Volume ◽

Particle Diameter ◽

Solid Particles ◽

Slurry Flow ◽

Two Phase ◽

Horizontal Pipe

Over the decades conveying solid particles through pipelines is a prevalent usage for many industries like food industries, pharmaceutical, oil and gas-solid handling, power generations etc. In the present study, slurry flow through 54.9 mm diameter and 4 m long horizontal pipe with solid particle diameter 0.125 mm and specific gravity 2.47 has been numerically analysed using a granular version of Eulerian two-phase model and RNG K- model. The solid particles are considered as mono-dispersed in the Eulerian model. These models are available in computational fluid dynamics (CFD) fluent software package. Non-uniform structured three-dimensional mesh with a refinement near wall boundary region has been selected for discretising the flow domain, and governing equations are solved using control volume finite difference method. Simulations are conducted at velocity varying from 1 m/s to 5 m/s and efflux concentration varying from 0.1 to 0.5 by volume. Different slurry flow parameters such as solid concentration distribution, velocity distribution, pressure drop etc. have been analysed from the simulated results. The simulated results of pressure drop are correlated with the experimental data available in previous literature and are found to be in excellent compliance with the experimental data.

Download Full-text