CAJ | 학술논문

为探究宽尾墩跌坎消力池消能机理及其水力特性，采用RNG κ-ε湍流模型结合VOF两相流数值模拟方法，对宽尾墩联合平底消力池、无宽尾墩平底消力池和宽尾墩跌坎消力池三种方案进行了模拟研究，对比分析了这三种方案的流态及水面线、临底流速、压强分布。结果表明：宽尾墩跌坎消力池表现出掺气充分，水流紊动剧烈，临底流速小，压强小且分布均匀等特点。
위탐구관미돈질감소력지소능궤리급기수력특성，채용RNG κ-ε단류모형결합VOF량상류수치모의방법，대관미돈연합평저소력지、무관미돈평저소력지화관미돈질감소력지삼충방안진행료모의연구，대비분석료저삼충방안적류태급수면선、림저류속、압강분포。결과표명：관미돈질감소력지표현출참기충분，수류문동극렬，림저류속소，압강소차분포균균등특점。
Three-dimensional RNG κ-εturbulence model with VOF method was used to study the stilling basins with step-down floor combined with flaring gate pier and other two comparative schemes of stilling basin and stilling basin combined with flaring gate pier. Water surface profile, velocity field and pressure distribution on the stilling basin floor were obtained. The results show that the stilling basins with step-down floor com-bined with flaring gate pier has better hydraulic performances such as more sufficiently diffused and aerated in all directions,more turbulent flow, smaller velocity at the bottom of the stilling basin,smaller pressure and more even distribution on the stilling basin floor.