Simulation and Analysis of Flow Process in Pneumatic Conveyors in Syrian Ports
Keywords:
: DEM-CFD , particle flow , erosion , drag force , dune flow.Abstract
The behavior of the flow of particles of the material transported through the air flow varies according to the type of material and the parameters of the conveyor, including the productivity and the dimensions of the conveyor. In This research, the optimal state of wheat flow in the Vigan 200 pneumatic conveyor in Lattakian port was studied by comparing the flow patterns results of several parameters and shapes of the transported wheat and studying the effect of each of them on the conveyor pipes and focusing on the curved parts of the pipes.
Flow and erosion have been simulated by DEM-CFD method using Ansys fluent and Rocky DEM, the effect of shape and dimension changing on the erosion of the bend part of the tube, normal and tangential forces of particle- particle, have been studied, the results showed that in case of wheat particles , both of normal and tangential forces increased in bend , and gradually decreased in the horizontal pipe and the particle flow was more stability in vertical and bend pipes but a dune flow was observed in horizontal pipe, whereas normal and tangential forces significantly decreased in case of spherical particles which flow in small groups in vertical, bend and horizontal pipes.
These simulations showed the great influence of particle size, shape and initial air velocity on the behavior of wheat particles flow, the results also showed that the erosion values decreased and behavior of the flow approaches the optimum state when rectangular bend was used instead of the cylindrical one when the initial air velocity reached 17.5 m/s.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 �ttps://creativecommons.org/licenses/by-nc-sa/4.0/
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.