DYNAMICS OF SUSPENDED SOLIDS IN DOWNWARD TURBULENT AIR FLOW THROUGH SUDDEN EXPANSION PIPE | ||||
The International Conference on Mathematics and Engineering Physics | ||||
Article 5, Volume 8, International Conference on Mathematics and Engineering Physics (ICMEP-8), April 2016, Page 1-19 PDF (1.34 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/icmep.2016.29614 | ||||
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Authors | ||||
W. A. El-Askary1; I. M. Eldesoky2; O. Saleh2; S. M. El-Behery1; A. S. Dawood2 | ||||
1Mechanical Power Engineering Department, Faculty of Engineering, Menoufiya University, Shebin El-Kom, EGYPT. | ||||
2Basic Engineering Science Department, Faculty of Engineering, Menoufiya University, Shebin El-Kom, EGYPT. | ||||
Abstract | ||||
Abstract A method with hybrid scheme is used to simulate turbulent gas-solid flow through sudden expansion pipe. The present developed code introduces good results in view of comparisons with available experimental data. This encourages the authors to extend the theoretical work considering different parameters. The effects of solid-particles on downward turbulent-air flow through the sudden expansion are simulated using Eulerian-Lagrangian approach. Reynolds averaged Navier Stokes equations associated with standard k-ε turbulence model are used with four-way coupling between the two phases. The separation size is discussed under different effects including: particle sizes, mass loading ratios, area ratios and Reynolds numbers. The computational results indicate that the finest particles can increase the separation bubble size. | ||||
Keywords | ||||
Gas-solid flow; Sudden-expansion; Eulerian-Lagrangian; Separation; reattachment length | ||||
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