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IUTAM Symposium on Lubricated Transport of Viscous by Daniel D. Joseph (auth.), Harold Ramkissoon (eds.)

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By Daniel D. Joseph (auth.), Harold Ramkissoon (eds.)

The major goal of the 1st foreign Symposium on Lubricated delivery of Viscous fabrics was once to assemble scientists and engineers from academia and industryto talk about present learn paintings and alternate rules during this newly rising box. it really is a space offluid dynamics dedicated to laying naked the principlesofthe lubricated delivery of viscous fabrics akin to crude oil, focused oil/water emulsion, slurries and pills. It encompasses different types of challenge. experiences of migration of particulates clear of partitions, Segre-Silverberg results, lubrication as opposed to raise and shear-induced migration belong to 1 classification. a few of the technological difficulties are the fluid dynamics ofcore flows emphasizing reports ofstability, difficulties of start-up, lift-off and whimsical circulation the place gravity explanations the middle move to stratify. one other class of difficulties bargains with the fouling of pipe partitions with oil, with bad raises in strain gradients or even blockading. This research consists of matters like adhesion and dynamic touch angles. the subjects ofshear-induced diffusion ofsmall debris and wall slip in gradual circulate are different applicable matters. machine­ in depth studiesofflow-induced microstructures and relocating interface difficulties are but extra learn instructions. the overall consensus was once that the Symposium was once an incredible good fortune, even supposing the variety of displays fell lower than expectancies. Scientists from the petroleum undefined, and this comprises INTEVEP (Venezuela), Schlumberger and Syncrude Canada Ltd. , and specialists to grease businesses actively participated within the Symposium. The assembly produced new insights which may still result in extra fascinating learn paintings and proven contacts for possiblejoint investigations.

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

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1974) Minimizing the pressure gradients in capsule pipelines, The Canadian J. ofChemical Engineering, 52,457-462. 2. S. and Kruyer, J. (1972) Some effects of fitting cylindrical pipeline capsule with collars or runners, Hydrotransport 2, paper F4 . 3. , Yamamoto, M. and Funatsu, K. (1986) Motion of a single capsule in a hydraulic pipeline, J. Fluid. Mech. 171,495-508. 4. , Funatsu, K. and Fujiwara, Y. (1990) Unsteady Analysis of Hydraulic Capsule Transport in a Straight Horizontal Pipeline, in H.

6. , Serayssol, J. J. ohydrodynamic collision of two spheres, J. , 163, 479-497. 7. J. and Thornton, C. (1996) Elastohydrodynamic collisions of solid spheres, 1. , 311, 141-152. 8. , Tanaka, T. and Ishida, T. (1992) Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe, Powder Technology, 71, 239-250. 9. G. (1965) The lift on a small sphere in a slow share flow, J. , 22, 385-400. 10. W. and Gidaspow, D. (1989) Porosity distributions in a fluidized bed with an immersed obstacle, AIChE Journal, 35, 908-922.

0 30 0 10 Helical angle of ribs. degree (a) 15 20 2S 30 Helical angle of ribs. degree r-3mm (b) r=5mm Figure 2. Velocity ratio of capsule to water: •. 19kg. H = 2mAq; •. 19kg. H = lmAq; .... 33kg. 33kg. H=lmAq. capsule motion in the pipeline. e:lSUring point. This means that for the wheeled capsule the pressure drop in a region including the capsule is the same as that without the capsule. Figure 3 shows the results for the ribbed capsule. The capsule velocity is smaller than that of water in both cases.

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