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Vol.3 , No. 1, Publication Date: Jan. 11, 2018, Page: 10-16
 in a horizontal pipe has been investigated numerically using the Eulerian or two-fluid model to predict pressure drop. Consideration of inter-particle collisions give rise to solid phase stresses and are modeled using kinetic theory of granular flow (KTGF). It was observed that consideration of inter-particle collisions, particle-wall collision and lift help in the radial dispersion of the solid particles in a horizontal pipe. The value of the numerical parameter specularity coefficient strongly affects pressure drop and hence, has to be chosen correctly. The effect of flow parameters as well as particle properties on pressure drop was investigated in detail. The conclusions are (a) pressure drop increases with gas velocity (b) pressure drop increases with solids loading (c) pressure drop first increases, reach a peak and then decreases with the increase in particle diameter in the range 35 to 200 micron.&picture=http://www.aascit.org/aascit/decorators/img/journal/825.jpg)
| [1] | Pandaba Patro, Department of Mechanical Engineering, Veer Surendra Sai University of Technology, Odisha, India. |
In the present paper, gas–solid flow (i.e. pneumatic conveying) in a horizontal pipe has been investigated numerically using the Eulerian or two-fluid model to predict pressure drop. Consideration of inter-particle collisions give rise to solid phase stresses and are modeled using kinetic theory of granular flow (KTGF). It was observed that consideration of inter-particle collisions, particle-wall collision and lift help in the radial dispersion of the solid particles in a horizontal pipe. The value of the numerical parameter specularity coefficient strongly affects pressure drop and hence, has to be chosen correctly. The effect of flow parameters as well as particle properties on pressure drop was investigated in detail. The conclusions are (a) pressure drop increases with gas velocity (b) pressure drop increases with solids loading (c) pressure drop first increases, reach a peak and then decreases with the increase in particle diameter in the range 35 to 200 micron.
Keywords
Pneumatic Conveying, Pressure Drop, Eulerian Modeling, KTGF, CFD
Reference
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