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Title:
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CFD study of the gas carry-under in a gas-liquid compact cyclone (GLCC TM) separator using a mixture model
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Author:
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Nkengue Tsobguin, Bienvenue
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica; Rojas-Solórzano, Luis Ramon |
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Abstract:
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A three‐dimensional CFD study of the two‐phase flow field in a Gas‐Liquid Cylindrical
Cyclone (GLCC) using the finite volume‐based finite element method is presented. The
numerical analysis was made for air‐water mixtures at near atmospheric conditions, while
both liquid and gas flow rates were changed. The two‐phase flow behavior is modeled using
an Eulerian‐Eulerian approach, considering both phases as an interpenetrating continuum.
This method computed the inter‐phase phenomena by including a source term in the
momentum equation to consider the drag between the liquid and gas phases. The gas‐liquid
flow is modeled using an inhomogeneous mixture model, in order to capture the interfacial
effects associated to the general complex interfacial boundaries. Results are compared to
experiments and to results from a bi‐modal inhomogeneous particle model. The CFD
technique here proposed, demonstrates to satisfactorily reproduce important features not
easily depicted in experiments and not computed when using the particle model. Results
show phase distributions and velocity profiles inside the GLCC, as well as the computed gas
carry‐under for different operating conditions. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
-Fluid dynamics
-Gas dynamics
-Dinàmica de fluids
-Dinàmica de gasos |
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Rights:
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Document type:
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Research/Master Thesis |
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Published by:
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Universitat Politècnica de Catalunya
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