【摘要】 为了解决新疆某工程泄洪洞消力池流态紊乱、消能率低的问题，采用数值模拟方法 ，在设计及校核流量下，对传统消力池、悬栅消力池以及趾墩-悬栅消力池3种不同形式消力池水力特性进行系统性分析。结果表明：趾墩-悬栅联合消能工改善了消力池内水流流态，消力池发生淹没式水跃，其池内悬栅与悬栅间隙处涡量分布广泛，池内整体涡量分布比悬栅消力池分布更加均匀。在设计流量下，消能率为74.41%，相较于传统消力池消能率提高2.61%，相较于悬栅消力池消能率提高0.95%；在校核流量下，消能率为78.99%，相较于传统消力池消能率提高5.64%，相较于悬栅消力池消能率提高0.95%。更多还原

【Abstract】 In order to solve the problem of disorganized flow pattern and low dissipation rate of stilling basin in a project of flood relief hole in Xinjiang,numerical simulation is used to systematically analyze the hydraulic characteristics of three different forms of stilling basins:traditional stilling basins,hanging grill stilling basins and toe-pier-hanging grill stilling basins,under the flow rate of design and calibration.The results show that:toe pier-suspended grid joint energy dissipation work to improve the stilling basin water flow pattern,stilling basin flooding water jump,the stilling basin suspended grid and suspended grid gap vortex distribution is extensive,the overall vortex distribution in the stilling basin is more uniform than the distribution of the suspended grid stilling basin.Under the design flow rate,the dissipation rate of 74.41%,compared with the traditional stilling basin dissipation rate increased by 2.61%,compared with the suspended grid stilling basin dissipation rate increased by 0.95%.Under the calibration flow,the energy dissipation rate is 78.99%,which is5.64% higher than that of the traditional stilling basin and 0.95% higher than that of the hanging grid stilling basin.更多还原