CFD simulation of two-phase flows in a vertical duct

منو

" CFD simulation of two-phase flows in a vertical duct "
Iffat Tasneem Shaik Mohammad A. Benard

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	54591
Doc. No	:	TL24545
Call number	:	‭1434368‬
Main Entry	:	Iffat Tasneem Shaik Mohammad
Title & Author	:	CFD simulation of two-phase flows in a vertical duct\ Iffat Tasneem Shaik Mohammad
College	:	Michigan State University
Date	:	2006
Degree	:	M.S.
student score	:	2006
Page No	:	76
Abstract	:	The flow of a suspension of spherical particles in air through a vertical rectangular channel with equal inlet and outlet cross sectional areas was simulated under isothermal conditions using Fluent. An Eulerian approach was used in which the multiphase problem is represented as two interpenetrating continua. A granular model was employed for the mixture stress and a realizable "eddy" viscosity model was used for the Reynolds stress. The purpose of this work was to evaluate the ability of the multiphase model to capture the flow physics associated with catalytic risers. Experimental findings of Ibsen et al. (2001) were used for evaluating the numerical predictions. The numerical predictions were able to capture the axial and span wise particle velocity in some regions of the flow but failed to capture the correct pressure drop. In addition, while the turbulence model provided realizable results for the single-phase flows tested, it became unrealizable when coupled with the multiphase granular model.
Subject	:	Applied sciences; Mechanical engineering; 0548:Mechanical engineering
Added Entry	:	A. Benard
Added Entry	:	Michigan State University