Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step
Dawood, A., Amer, A., Abumandour, R., ElAskary, W. (2023). Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step. EKB Journal Management System, 46(4), 543-554. doi: 10.21608/erjm.2023.231572.1289
Ahmed S. Dawood; Ahmed S Amer; Ramzy M. Abumandour; Wageeh ElAskary. "Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step". EKB Journal Management System, 46, 4, 2023, 543-554. doi: 10.21608/erjm.2023.231572.1289
Dawood, A., Amer, A., Abumandour, R., ElAskary, W. (2023). 'Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step', EKB Journal Management System, 46(4), pp. 543-554. doi: 10.21608/erjm.2023.231572.1289
Dawood, A., Amer, A., Abumandour, R., ElAskary, W. Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step. EKB Journal Management System, 2023; 46(4): 543-554. doi: 10.21608/erjm.2023.231572.1289

Downward two-phase (Gas - Solid) Turbulent Flow Through a Vertical Sudden Expansion Duct with a Backward-Facing Step

ERJ. Engineering Research Journal
Volume 46, Issue 4, October 2023, Page 543-554  XML PDF (891.93 K)
Document Type: Original Article
DOI: 10.21608/erjm.2023.231572.1289
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Authors
Ahmed S. Dawood email orcid 1; Ahmed S Amer2; Ramzy M. Abumandour3; Wageeh ElAskary4
1Department of Basic Engineering Science, Faculty of Engineering, Menoufia University, Shebin El-Kom, Egypt
2Basic Engineering Science Department, Faculty of Engineering, Menoufia University , Egypt
3Basic Engineering Sciences Department, Engineering Faculty, Menoufia University
4Department of Mechanical Power Engineering, Faculty of Engineering, Menoufia University
Abstract
This study aims to investigate the impact of particles on flow characteristics within the framework of downward turbulent gas-solid flow through a sudden expansion backward-facing step. Employing the Eulerian-Lagrangian approach, the simulation encompasses both gas and solid phases. A custom FORTRAN code, based on the finite volume technique with a hybrid scheme in a staggered grid, is developed to simulate the scenario. This research introduces and compares the standard k-ε and Chen-Kim turbulence models with experimental outcomes. The investigation utilizes experimental measurements and numerical simulations to comprehend flow dynamics. Upon juxtaposing the results with published experimental data, the current code displays favorable outcomes, motivating further theoretical exploration and parameter investigation. The sudden expansion backward-facing 's performance is evaluated across mass loading ratios. Computational findings emphasize the considerable influence of mass loading ratio on flow behavior. An increase in mass loading ratio leads to heightened solid phase concentration and distinct flow patterns.
Keywords
Multiphase; Standard K-e model; Eulerian-Lagrangian approach
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