水平管粒体プラグ輸送における圧力損失予測式の導出 : 粒子種類および管内径に対する高応用性(流体工学,流体機械)

概要

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In a plug transportation that is one of gas-solid two-phase flow, the predicted equations on particle velocity within a plug and pressure drop in a horizontal pipe have been formulated. The agreement between values calculated by these equations and experiments that changed solid-air mass flow rate, pipe diameter, kinds of particle was obtained. The error between them is almost within 10%. In order to confirm the validity of supposition to derive these equations, particle velocity distribution within a plug in the directions of flow and radius, and particle velocity transformation from a stationary bed to a plug have been analyzed by high speed camera and PIV. As a result, there is no particle velocity distribution in a plug, and particles are accelerated uniformly in extra part of a plug. Particles in a plug are fixed relative to each other and so they all move with the same velocity.
社団法人日本機械学会の論文
2007-09-25