WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 11, 2016
Effect of Liquid Density on Particulate Flow in Dam Break
Authors: , ,
Abstract: The present study invetigated the dam breaking containg the particles by handling three pahses of the lquid-gas-solid mixure. The discrete element method (DEM) - computational fluid dynamics (CFD) conbined methos was adopted to resolve the three pahses of the lquid-gas-solid mixure. The present study considers the wide range of the liquid density to investugate the effect of the liquid density on the behavior of the particles and the free-surface. Three regimes of the overlapping, divergent and impinging behaviors govern the time evolution of the particles and the free-surface. The overlapping regime shows that the front head positions of the liquid and the particles are almost identical and two dimensional behaviors. However, in the divergent regime, lower liquid densities derive that the liquid front head is faster than that of the particle. Over the critical liquid density, the opposite divergent pattern to the low liquid density appears. Especially, the three-dimension effect on the distribution of the particles and the free-surface appears in the divergent regime.
Search Articles
Pages: 69-75
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 11, 2016, Art. #8