LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "drag model" as a keyword



Photo by marcsm from unsplash

Multi-scale CFD modeling of gas-solid bubbling fluidization accounting for sub-grid information

Sign Up to like & get
recommendations! Published in 2018 at "Advanced Powder Technology"

DOI: 10.1016/j.apt.2018.02.024

Abstract: Abstract An improved bubble-based heterogeneous drag model was formulated in which the original bubble-based EMMS drag model at macroscale bed level was extended to microscale sub-grid level for accurate coarse-grid two-fluid modeling (TFM) of Geldart… read more here.

Keywords: bubble based; sub grid; bubbling fluidization; drag model ... See more keywords
Photo from wikipedia

CFD Simulation of Bubble Column Hydrodynamics with a Novel Drag Model Based on EMMS Approach

Sign Up to like & get
recommendations! Published in 2021 at "Chemical Engineering Science"

DOI: 10.1016/j.ces.2021.116758

Abstract: Abstract Drag model is of critical importance for CFD simulation of flow characteristics in bubble columns. In this study, a novel drag model termed DBS-Local for the ratio of effective drag coefficient to bubble diameter… read more here.

Keywords: drag model; hydrodynamics; cfd simulation; model ... See more keywords
Photo by thinkmagically from unsplash

MP-PIC simulation of circulating fluidized beds using an EMMS based drag model for Geldart B particles

Sign Up to like & get
recommendations! Published in 2021 at "Particuology"

DOI: 10.1016/j.partic.2021.07.002

Abstract: Abstract In this study the multiphase particle-in-cell (MP-PIC) method is used for the simulation of two pilot-scale circulating fluidized beds (CFBs) with quartz sand belonging to Geldart’s group B as bed material. The simulations were… read more here.

Keywords: drag model; emms based; model; based drag ... See more keywords
Photo by kellysikkema from unsplash

Sub-grid drag model for immersed vertical cylinders in fluidized beds

Sign Up to like & get
recommendations! Published in 2017 at "Powder Technology"

DOI: 10.1016/j.powtec.2016.12.044

Abstract: Abstract Immersed vertical cylinders are often used as heat exchanger in gas-solid fluidized beds. Computational Fluid Dynamics (CFD) simulations are computationally expensive for large scale systems with bundles of cylinders. Therefore sub-grid models are required… read more here.

Keywords: sub grid; vertical cylinders; drag; grid drag ... See more keywords
Photo by betzywithz from unsplash

Evaluation of drag models for particles and powders with non-uniform size and shape

Sign Up to like & get
recommendations! Published in 2018 at "Powder Technology"

DOI: 10.1016/j.powtec.2018.02.036

Abstract: Abstract One of the key issues with the application of drag models for non-spherical particles is the incorporation of differently shaped particles. Under real world conditions, every single grain in a powder or granule has… read more here.

Keywords: drag models; shape; slag particles; particle ... See more keywords
Photo by thinkmagically from unsplash

3D CPFD simulations of gas-solids flow in a CFB downer with cluster-based drag model

Sign Up to like & get
recommendations! Published in 2020 at "Powder Technology"

DOI: 10.1016/j.powtec.2019.07.044

Abstract: Abstract The interactions of gas and solids are important in determining the flow structures in the Circulating Fluidized Bed (CFB) downer. Proper description of the interphase drag model is thus crucial for simulating the downer.… read more here.

Keywords: downer; drag model; gas solids; cfb downer ... See more keywords
Photo by thinkmagically from unsplash

Bubble-based EMMS/DP drag model for MP-PIC simulation

Sign Up to like & get
recommendations! Published in 2020 at "Powder Technology"

DOI: 10.1016/j.powtec.2020.06.023

Abstract: Abstract To account for the sub-grid heterogeneity of bubbling gas-solid flows in the multi-phase particle-in-cell (MP-PIC) method, a bubble-based EMMS/DP drag model is proposed in this work by taking into account the particle/parcel position information.… read more here.

Keywords: bubble based; model; emms drag; drag model ... See more keywords
Photo by thinkmagically from unsplash

Formation of drops and rings in double-diffusive sedimentation

Sign Up to like & get
recommendations! Published in 2019 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2019.946

Abstract: We conduct numerical simulations to investigate the formation and evolution of drops and vortex rings of particle-laden fingers in double-diffusive convection in stably stratified environments. We show that the temporal evolution can be divided into… read more here.

Keywords: formation drops; double diffusive; drag model; drop ... See more keywords