Three‐dimensional simulations of gas‐liquid cocurrent downflow in vertical, inclined, and oscillating packed beds
作者： Ion Iliuta , Faïçal Larachi
DOI: 10.1002/AIC.15071
关键词: Pressure drop 、 Column (typography) 、 Porosity 、 Chemistry 、 Amplitude 、 Axial symmetry 、 Flow (psychology) 、 Mechanics 、 Geotechnical engineering 、 Pressure gradient 、 Core (optical fiber)
摘要: The hydrodynamic behavior of gas-liquid downflow in vertical, inclined, and oscillating packed beds related to offshore floating applications was analyzed by means three-dimensional unsteady-state two-fluid simulations. Angular oscillations the column between two angled symmetrical positions vertical inclined position were considered while bed non-uniformity described using radial porosity distributions. For slightly columns, two-phase flow concentrated core area bed. However, predicted deviate significantly from axial symmetry at higher inclinations with prominent liquid accumulation bottommost reactor cross-sectional area. Oscillating unveiled complex reverse secondary flows radially circumferentially resulting oscillatory patterns holdup pressure drop whose amplitude propagation frequency affected inclination angle travel time positions. © 2015 American Institute Chemical Engineers AIChE J, 62: 916–927, 2016
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