Investigation on effect of drag models on flow behavior of power-law fluid–solid two-phase flow in fluidized bed
作者机构：Key Laboratory of Enhanced Oil Recovery of Ministry of EducationSchool of Petroleum EngineeringNortheast Petroleum UniversityDaqing 163318China
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2022年第70卷第11期
页 面：43-54页
核心收录：
学科分类：080704[工学-流体机械及工程] 0817[工学-化学工程与技术] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）]
基 金：This work was supported by the National Natural Science Foundation of China(grant No.51876032) Natural Science Foundation of Heilongjiang Province(grant No.ZD2019E002)
主 题：Power-law liquid-solid drag models Power-law fluid Liquid-solid two-phase flow Eulerian-Eulerian two-fluid model
摘 要：In this study,a Eulerian-Eulerian two-fluid model combined with the kinetic theory of granular flow is adopted to simulate power-law fluid–solid two-phase flow in the fluidized *** new power-law liquid–solid drag models are proposed based on the rheological equation of power-law fluid and pressure *** called model A is a modified drag model considering tortuosity of flow channel and ratio of the throat to pore,and the other called model B is a blending drag model combining drag coefficients of high and low particle *** are compared with experimental data measured by Lali et al.,where the computed porosities from model B are closer to the measured data than other ***,the predicted pressure drop rises as liquid velocity increases,while it decreases with the increase of particle *** results indicate that the increases of consistency coefficient and flow behavior index lead to the decrease of drag coefficient,and particle concentration,granular temperature,granular pressure,and granular viscosity go down accordingly.
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