西华大学学报(自然科学版)2012,Vol.31Issue(3):100-104,5.
浑水异重流两相流模型的比较研究
Comparison of the Two-phase Flow Models for Turbid Density Current
摘要
Abstract
As an especial form of sediment-laden flow, turbid density current can be simulated by two-phase flow models usually including Eulerian multiphase model and mixture model. Because a full Eulerian multiphase model may not be feasible for its complexity, a simplified Eulerian multiphase model, in which the interface force only includes the friction, is applied. Here, the simplified Eulerian multiphase model (I.e. Euler Model) and the mixture model whose relative speed of phases is based on the algebraic slip model (I. E. MASM) were applied to simulate 2-D turbid density current in a channel. It was found that both of them could simulate the current fairly accurately. However, the heights of the heads obtained were different. The following behavior of particles was over stressed in Euler Model while MASM, in which the diffusion of particles was considered, was closer to the actual situation. Therefore, MASM was more suitable for the numerical simulation of turbid density current.关键词
浑水异重流/两相流模型/相间作用力/代数滑移模型Key words
turbid density current/ two-phased flow model/ interface force/ ASM分类
建筑与水利引用本文复制引用
赵琴..浑水异重流两相流模型的比较研究[J].西华大学学报(自然科学版),2012,31(3):100-104,5.基金项目
四川省教育厅青年基金资助项目(09ZB082) (09ZB082)