Capability assessment of coarse-grid simulation of gas-particle riser flow using sub-grid drag closures
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2019.115410
Abstract: Abstract Our prior work developed an effective material-property-dependent sub-grid model (SGM) for efficient coarse-grid riser flow simulations. To apply this SGM for the purpose of designing and scaling-up riser reactors reliably, quantitative assessment in its… read more here.
Keywords: sub grid; coarse; riser flow; coarse grid ... See more keywords
Gabor mode enrichment in large eddy simulations of turbulent flow
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.622
Abstract: Abstract A turbulence enrichment model for subfilter-scale motions in large eddy simulations (LES) is comprehensively evaluated in the context of a posteriori analysis. The paper further develops the Gabor mode enrichment model first introduced in… read more here.
Keywords: large eddy; gabor mode; eddy simulations; scale ... See more keywords
Online Coupled Generalized Multiscale Finite Element Method for the Poroelasticity Problem in Fractured and Heterogeneous Media
Sign Up to like & getrecommendations! Published in 2021 at "Fluids"
DOI: 10.3390/fluids6080298
Abstract: In this paper, we consider the poroelasticity problem in fractured and heterogeneous media. The mathematical model contains a coupled system of equations for fluid pressures and displacements in heterogeneous media. Due to scale disparity, many… read more here.
Keywords: basis functions; fractured heterogeneous; coarse grid; poroelasticity ... See more keywords
Generalized Multiscale Inversion for Heterogeneous Problems
Sign Up to like & getrecommendations! Published in 2019 at "Communications in Computational Physics"
DOI: 10.4208/cicp.oa-2017-0184
Abstract: In this work, we propose a generalized multiscale inversion algorithm for heterogeneous problems that aims at solving an inverse problem on a computational coarse grid. Previous inversion techniques for multiscale problems seek a coarse-grid media… read more here.
Keywords: inversion; permeability field; generalized multiscale; coarse grid ... See more keywords