水资源与水工程学报2012，Vol.23Issue(5)：15-18,4.
多孔方型人工鱼礁绕流的数值模拟研究
Study on numerical simulation of water flow past a porous square artificial reef
摘要
Abstract
Numerical simulations are performed to obtain the water flow fields around a porous square artificial reef under the five different incoming velocities (0. 1 ~ 0. 8m/s). The numerical results of velocity distribution on the perpendicular flow plane passing through the center of the reef show that (1 ) under the five different incoming velocities the maximum and average velocities of the upwelling are 0.74 and 0. 12 times of the incoming velocity, respectively, the maximum height of the upwelling is about 2. 6 to 2.7 times of the reef height,and the length and height of the vortex region are 4 and 1. 25 times of the reef height respectively; ( 2 ) a region where the flow direction is the same as that of the incoming flow is formed near the leeward surface of the reef. The numerical results of the velocity distribution on the horizontal flow plane passing the center of the reef reveal that (1) the length and width of the wake vortex region are 4 and 1. 8 times of the reef width, respectively, for each of the five different incoming velocities; (2) vortex regions are also formed inside the reef. In this study, the similarities and differences with respect to the flow characteristics are also summarized preliminarily between the flow past a square reef without holes and the flow past a porous square reef.关键词
多孔方型人工鱼礁/水流场/上升流/背涡区/数值模拟Key words
porous square artificial reef/ water flow field/ upwelling/ wake vortex region/ numerical simulation分类
建筑与水利引用本文复制引用
黄远东,赵树夫,姜剑伟,周中华,顾静..多孔方型人工鱼礁绕流的数值模拟研究[J].水资源与水工程学报,2012,23(5):15-18,4.基金项目
上海市教委重点学科建设项目(J50502) （J50502）
上海市研究生创新基金项目(JWCXSL1102) （JWCXSL1102）
