A dynamic Spatially Averaged Two-Fluid Model for heat transport in moderately dense gas–particle flows

2020 ◽  
Vol 32 (6) ◽  
pp. 063307 ◽  
Author(s):  
Stefanie Rauchenzauner ◽  
Simon Schneiderbauer
Keyword(s):  
Heat Transport ◽  
Fluid Model ◽  
Dense Gas ◽  
Particle Flows ◽  
Two Fluid Model ◽  
Two Fluid

Practical validation of the two-fluid model applied to dense gas–solid flows in fluidized beds

2007 ◽  
Vol 62 (21) ◽  
pp. 5854-5869 ◽  
Author(s):  
HÅvard Lindborg ◽  
Magne Lysberg ◽  
Hugo A. Jakobsen
Keyword(s):  
Fluidized Beds ◽  
Fluid Model ◽  
Dense Gas ◽  
Two Fluid Model ◽  
Practical Validation ◽  
Two Fluid

A Numerical Method for Gas-Particle Flows With Accumulation

2006 ◽  
Author(s):  
Xiang Zhao ◽  
Sijun Zhang
Keyword(s):  
Mathematical Model ◽  
Numerical Modelling ◽  
Numerical Method ◽  
Fluid Model ◽  
Particle Flow ◽  
Flow Conditions ◽  
Accumulation Zone ◽  
Particle Flows ◽  
Two Fluid Model ◽  
Two Fluid

A mathematical model is proposed to describe the gas-particle flow in a bed packed with particles. The model is in essence the same as the two fluid model developed on the basis of the space-averaged theorem but extended to consider the interactions among the gas, powder and packed particles and the static and dynamic holdups of powder. In particular, a method is proposed to determine the boundary between powder mobile and non-mobile zones, i.e. the profile of powder accumulation zone. The validity of the numerical modelling is examined by comparing the predicted and measured distributions of powder accumulation under various flow conditions.

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