Effect of geometry on flow structure and pressure drop in pneumatic conveying of solids along horizontal ducts

This study presents further developments in Euler/Lagrange approach to calculate confined particle-laden flows in pneumatic conveying lines. Special emphasis is placed on influence of particle-wall collisions and wall roughness as well as inter particle collisions with possible agglomeration on developing two-phase flow structure and resulting process parameters. Model sand numerical method were validated based on pressure drop measured along a 6 m horizontal channel, and agreement was found to be excellent for different particles sizes, mass loading and wall roughness. In a horizontal pipe flow, due to wall roughness induced focussing of particle trajectories towards the core of pipe, a secondary flow in pipe cross-section develops. Additional pressure drop due to particles in pipe flow was higher than that in channel due to different wall collision behaviour

• Autores: Laín Beatove, Santiago; Sommerfeld, Martin
• Tipo de recurso: Article of journal
• Fecha de publicación: 2011
• Institución: Universidad Autónoma de Occidente
• Repositorio: RED: Repositorio Educativo Digital UAO
• Idioma: eng
• OAI Identifier: oai:red.uao.edu.co:10614/11904
• Acceso en línea: http://hdl.handle.net/10614/11904
• Palabra clave: Transporte neumático; Dinámica de fluidos; Pneumatic-tube transportation; Fluid dynamics; Gas-solid flow; Inter-particle collisions; Pneumatic conveying; Turbulence; Wall roughness
• Rights: openAccess
• License: Derechos Reservados - Universidad Autónoma de Occidente