Author(s): Li Zuisen; Michioku Kohji; Maeno Shiro
Linked Author(s): Kohji Michioku
Keywords: Group of permeable groins; Two-dimensional analysis; Non-Darcian flow
Abstract: In this study, a numerical analysis and laboratory experiment were carried out with respect to an open channel flow with a group of permeable groins installed. By using a twodimensional depth-averaged numerical model, flow fields and water surface profiles were analyzed and compared with the laboratory data. Developed by taking into consideration the flow resistance and permeability of the rubble mound structures, the model is expected to be a useful tool in the hydraulic design of permeable river structures such as rubble mound groins. The agreement between the analysis and experiment was satisfactory. The effects of the rubble’s porosity and groin diameter and arrangement on the flow structure and fluid forces were discussed based on the experimental and numerical data.
Year: 2007