Home Articles List Article Information
JES. Journal of Engineering Sciences
Journal Archive
Volume Volume 53 (2025)
Volume Volume 52 (2024)
Volume Volume 51 (2023)
Volume Volume 50 (2022)
Volume Volume 49 (2021)
Volume Volume 48 (2020)
Volume Volume 47 (2019)
Volume Volume 46 (2018)
Volume Volume 45 (2017)
Volume Volume 44 (2016)
Volume Volume 43 (2015)
Volume Volume 42 (2014)
Volume Volume 41 (2013)
Volume Volume 40 (2012)
Volume Volume 39 (2011)
Volume Volume 38 (2010)
Volume Volume 37 (2009)
Volume Volume 36 (2008)
Volume Volume 35 (2007)
Volume Volume 34 (2006)
, M. A, D., , A. F, A., G. M. A, M., , M. H, A., A. M, R. (2008). COMPUTATIONAL PREDICTION OF WATER-FLOW CHARACTERISTICS IN SPIRAL SEPARATORS: PART I, FLOW DEPTH AND TURBULENCE INTENSITY. JES. Journal of Engineering Sciences, 36(No 4), 935-950. doi: 10.21608/jesaun.2008.118230
Doheim , M. A; Abdel Gawad , A. F; Mahran, G. M. A; Abu-Ali , M. H; Rizk, A. M. "COMPUTATIONAL PREDICTION OF WATER-FLOW CHARACTERISTICS IN SPIRAL SEPARATORS: PART I, FLOW DEPTH AND TURBULENCE INTENSITY". JES. Journal of Engineering Sciences, 36, No 4, 2008, 935-950. doi: 10.21608/jesaun.2008.118230
, M. A, D., , A. F, A., G. M. A, M., , M. H, A., A. M, R. (2008). 'COMPUTATIONAL PREDICTION OF WATER-FLOW CHARACTERISTICS IN SPIRAL SEPARATORS: PART I, FLOW DEPTH AND TURBULENCE INTENSITY', JES. Journal of Engineering Sciences, 36(No 4), pp. 935-950. doi: 10.21608/jesaun.2008.118230
, M. A, D., , A. F, A., G. M. A, M., , M. H, A., A. M, R. COMPUTATIONAL PREDICTION OF WATER-FLOW CHARACTERISTICS IN SPIRAL SEPARATORS: PART I, FLOW DEPTH AND TURBULENCE INTENSITY. JES. Journal of Engineering Sciences, 2008; 36(No 4): 935-950. doi: 10.21608/jesaun.2008.118230

COMPUTATIONAL PREDICTION OF WATER-FLOW CHARACTERISTICS IN SPIRAL SEPARATORS: PART I, FLOW DEPTH AND TURBULENCE INTENSITY

Article 7, Volume 36, No 4, July and August 2008, Page 935-950  XML PDF (1.57 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2008.118230
View on SCiNiTO View on SCiNiTO
Authors
Doheim , M. A1; Abdel Gawad , A. F2; Mahran, G. M. A3; Abu-Ali , M. H1; Rizk, A. M1
1Mining and Metallurgical Eng. Dept., Faculty of Engineering, Assiut Univ.
2Mechanical Power Eng. Dept., Faculty of Engineering, Zagazig University.
3Mining and Petroleum Eng. Dept. Faculty of Engineering, Al-Azhar Univ.
Abstract
A spiral separator is one of the commonly-used gravity-concentration devices. It has been widely used in the mineral processing of coal. Also, it is used for the inexpensive pre-concentration of low grade ores. Spiral separator consists of an open trough that twists downward in helical configuration about a central axis. The aim of the present study is the simulation of the flow of water in spiral separators. The study is based on volume of Fluid (VOF) approach and turbulence modeling. The results focus on water-flow characteristics such as the depth of water as well as the turbulence intensity. The results demonstrated that the water depth and turbulence intensity on spiral trough increase smoothly outward. Predicted results are compared with the experimental findings from LD9 coal spiral. Comparison between the predicted and the measured values show good agreement and the most accurate turbulence model is RSM.
Keywords
Spiral separator; Free-surface flow; Computational simulation; Turbulence modeling; Flow depth
Main Subjects
Mining and Metallurgical Engineering.
Statistics
Article View: 173
PDF Download: 397