文档介绍：The putation of Grit Chamber with
Rotational Flow
Wang Xiaoling* Zhou Shasha
School of Civil Engineering, Tianjin University, School of Environmental Science and Engineering
Tianjin University Tianjin University
Tianjin,China Tianjin,China
******@tju. zssgh1@
Abstract—The lack of knowledge about water flow and particle In this paper, CFD is introduced for high turbidity sandstone
behavior of the grit chamber with rotational flow remains a wastewater treatment in the powerhouse. An Eulerian-
significant difficulty for the design of these work in sandstone Lagrangian two-phase flow model is established, and the
wastewater of hydropower station. In the paper, Eulerian- numerical solution is obtained by using software Star-CD. The
Lagrangian multi-phase model is set up. The grit chamber with 3-D velocity and concentration distributions in rotational flow
rotational flow in the powerhouse, which is located in southwest of grit chamber are investigated, as well as the dynamic process of
China, is as a case. Velocity field of water and the behavior of sludge settling. The present work fully considers the
particle trajectory of different particles size can be obtained, the interactions between solid and liquid phase, and the
distribution of the particle and the removal efficiency of different relationship between the settling property an