Numerical simulation of gas–solid flow with two fluid model in a spouted-fluid bed--颗粒学报PARTICUOLOGY

Wang, S., Zhao, L., Wang, C., Liu, Y., Gao, J., Liu, Y., & Cheng, Q. (2014). Numerical simulation of gas–solid flow with two fluid model in a spouted-fluid bed. Particuology, 14, 109–116. https://doi.org/10.1016/j.partic.2013.04.011

Numerical simulation of gas–solid flow with two fluid model in a spouted-fluid bed

Shuyan Wang ^a *, Liqian Zhao ^a, Chunsheng Wang ^a, Yinsong Liu ^a, Jinsen Gao ^b, Yang Liu ^a, Qinglin Cheng ^a

a School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
b State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

10.1016/j.partic.2013.04.011

Volume 14, June 2014, Pages 109-116

Received 18 October 2012, Revised 23 March 2013, Accepted 12 April 2013, Available online 9 August 2013.

E-mail: wangshuyan@nepu.edu.cn; wangshuyanhit@126.com

Highlights

• Flow behavior of spouted-fluid bed was predicted using Eulerian–Eulerian two-fluid modeling.

• Gas flux and gas incident angle have significant influence on porosity and particle concentration.

• The fluidizing gas flux affects the flow behavior of particles in the fountain.

• The solids volume fraction is low in the spout and high in the annulus.

Abstract

The flow characteristics in a spouted-fluid bed differ from those in spouted or fluidized beds because of the injection of the spouting gas and the introduction of a fluidizing gas. The flow behavior of gas–solid phases was predicted using the Eulerian–Eulerian two-fluid model (TFM) approach with kinetic theory for granular flow to obtain the flow patterns in spouted-fluid beds. The gas flux and gas incident angle have a significant influence on the porosity and particle concentration in gas–solid spouted-fluid beds. The fluidizing gas flux affects the flow behavior of particles in the fountain. In the spouted-fluid bed, the solids volume fraction is low in the spout and high in the annulus. However, the solids volume fraction is reduced near the wall.

Graphical abstract

Keywords

Spouted-fluid bed; Two fluid modeling; CFD; Fluidization

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