IUTAM Symposium on Lubricated Transport of Viscous Materials : Proceedings of the IUTAM Symposium Held in Tobago, West Indies, 7–10 January 1997

The main objective of the First International Symposium on Lubricated Transport of Viscous Materials was to bring together scientists and engineers from academia and industryto discuss current research work and exchange ideas in this newly emerging field. It is an area offluid dynamics devoted to laying bare the principlesofthe lubricated transport of viscous materials such as crude oil, concentrated oil/water emulsion, slurries and capsules. It encompasses several types of problem. Studies of migration of particulates away from walls, Segre-Silverberg effects, lubrication versus lift and shear-induced migration belong to one category. Some of the technological problems are the fluid dynamics ofcore flows emphasizing studies ofstability, problems of start-up, lift-off and eccentric flow where gravity causes the core flow to stratify. Another category of problems deals with the fouling of pipe walls with oil, with undesirable increases in pressure gradients and even blocking. This study involves subjects like adhesion and dynamic contact angles. The topics ofshear-induced diffusion ofsmall particles and wall slip in slow flow are other appropriate subjects. Computer­ intensive studiesofflow-induced microstructures and moving interface problems are yet additional research directions. The general consensus was that the Symposium was a tremendous success, although the number of presentations fell below expectations. Scientists from the petroleum industry, and this includes INTEVEP (Venezuela), Schlumberger and Syncrude Canada Ltd. , and consultants to oil companies actively participated in the Symposium. The meeting produced new insights which should lead to further interesting research work and established contacts for possiblejoint investigations. The main objective of the First International Symposium on Lubricated Transport of Viscous Materials was to bring together scientists and engineers from academia and industryto discuss current research work and exchange ideas in this newly emerging field. It is an area offluid dynamics devoted to laying bare the principlesofthe lubricated transport of viscous materials such as crude oil, concentrated oil/water emulsion, slurries and capsules. It encompasses several types of problem. Studies of migration of particulates away from walls, Segre-Silverberg effects, lubrication versus lift and shear-induced migration belong to one category. Some of the technological problems are the fluid dynamics ofcore flows emphasizing studies ofstability, problems of start-up, lift-off and eccentric flow where gravity causes the core flow to stratify. Another category of problems deals with the fouling of pipe walls with oil, with undesirable increases in pressure gradients and even blocking. This study involves subjects like adhesion and dynamic contact angles. The topics ofshear-induced diffusion ofsmall particles and wall slip in slow flow are other appropriate subjects. ComputerƯ intensive studiesofflow-induced microstructures and moving interface problems are yet additional research directions. The general consensus was that the Symposium was a tremendous success, although the number of presentations fell below expectations. Scientists from the petroleum industry, and this includes INTEVEP (Venezuela), Schlumberger and Syncrude Canada Ltd., and consultants to oil companies actively participated in the Symposium. The meeting produced new insights which should lead to further interesting research work and established contacts for possiblejoint investigations This book presents some current work by leading researchers in the newly emerging branch of fluid mechanics devoted to the study of lubricated transport of viscous materials. It is a field that has attracted researchers both in academia and industry because of its widespread applications. The major topics covered here include core-annular flows, paraffin deposition in pipelines, transportation of capsules, shear-induced migration of particles and contact lines. An overview is presented at the beginning. Lubricated transport of viscous materials has been a major focus of research in recent times because of its obvious industrial applications. There are four main types of lubricated flows - solids by liquids, liquids by other liquids, slurries with water and turbulent gas with water. To the best of our knowledge, this book, which resulted from an IUTAM Symposium held in Tobago in 1997, represents the first attempt to document current work done on problems associated with these various types of lubricated flows. There are contributions by some of the leading experts in the field who have close links with industry. This book will be of interest to researchers in the field from both academia and industry, as well as petroleum engineers and graduate petroleum engineering students. Front Matter....Pages i-xi Lubricated Transport of Viscous Materials....Pages 1-24 Effects of Helical Ribs of Capsule Surface on a Flow in a Horizontal Hydraulic Pipeline....Pages 25-30 Numerical Analysis of Dense Phase Liquid-Solid Flow in a Horizontal Pipe....Pages 31-42 Paraffin Deposition Phenomena in Crude Oil Pipelines....Pages 43-64 Levitation of Core Flows....Pages 65-84 Axisymmetric Wavy Core Flow in a Heavy Viscous Oil....Pages 85-130 A Non-Axisymmetric Pattern Selection Problem in Core-Annular Flow....Pages 131-148 Analysis of a Freight Pipeline System....Pages 149-162 Peristaltic Transport in a Finite Circular Pipe....Pages 163-175 Numerical Simulation of Particle Motion in Viscoelastic Fluids....Pages 177-191 Migrational Instability in Shear-Thinning Suspensions....Pages 193-196 On the Combined Effect of Diffusion and Agglomeration in Shear Flow of Suspensions....Pages 197-202 Steady Flow of a Power Law Fluid Through an Elastically Deformable Porous Media....Pages 203-221 Thoughts Old and New on Moving Contact Lines....Pages 223-239 Back Matter....Pages 241-244