| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 08017 | |
| Number of page(s) | 4 | |
| Section | Particulate Multiphase Flows and Porous Media | |
| DOI | https://doi.org/10.1051/epjconf/202534008017 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534008017
Turbulent flow of a gas-solid suspension through a channel
1 Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
2 Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
The objective of the present work is to study the flow of gas-solid suspension in planar channels of finite dimensions using a coupled Large Eddy Simulations-Discrete Element Model (LES-DEM) approach. Dynamic k-equation subgrid scale model (DKSGS) is used to compute the fluctuations in the subgrid-scale. First, the simulation is performed for a vertical channel with periodicity in the spanwise direction in order to compare the results with the Direct Numerical Simulation- Hard sphere (DNS-HS) simulations. Second, the simulation is performed for vertical channels with confined span, in which the wall effect along spanwise and cross-stream directions is investigated. Each term of the kinetic energy and momentum balance equations is computed to understand the significance of individual effects at different solid concentrations within the channel. Simulations are performed for Re of 3300 and particle Stokes numbers of 32 and 105. It is observed that the nature of attenuation of the turbulent intensity depends on the grid selection,n even though particle free flow is grid converged.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.