Study of three-dimensional numerical simulation on hydro-brake with baffle
CHENG Wentao1,2, Wu Yanming1,2, LI Chao1,2,3, MA Guangfei1,2, ZHANG Jian3
1.Standard & Quality Control Research Institute, Ministry of Water Resources/Hangzhou Mechanical Design Research Institute, Ministry of Water Resource, Zhejiang, Hangzhou 310024, China; 2.Key Laboratory of Surface Engineering of Equipments for Hydraulic Engineering of Zhejiang Province, Zhejiang, Hangzhou 310024, China; 3.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, Jiangsu 210098, China
Abstract：The hydro-brake potentially can be applied to relieve urban waterlogging under a condition without reducing flow-through cross-sectional area. To judge whether it can operate properly in an actual working condition, the performance of a hydro-brake was simulated numerically by using VOF two-phase flow method in CFD. Results show that the experimental curve agrees well with the simulation one, as such the simulation method can reflect the flow characteristics better. The throttling efficiency of hydro-brake is about 18.2% without baffle, but is improved by about 22.7% after a baffle was added. The throttling efficiency of hydro-brake with baffle is generally more than 30.0%, depending on the deflection angle nonlinearly. Specially, if the angle is about 15°, the throttling efficiency can reach as high as 40.9%.
程文韬,, 吴燕明,, 李超,,, 马光飞,, 张健. 带有导流板的蜗形滞流器三维数值模拟[J]. 排灌机械工程学报, 2018, 36(1): 50-54.
CHENG Wentao,, Wu Yanming,, LI Chao,,, MA Guangfei,, ZHANG Jian. Study of three-dimensional numerical simulation on hydro-brake with baffle. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(1): 50-54.
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