中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2015年
6期
124-128
,共5页
溢洪道%挑坎%数值模拟
溢洪道%挑坎%數值模擬
일홍도%도감%수치모의
spillway tunnel%flip bucket%numerical simulation
采用标准的 k～ε紊流模型与VOF方法，结合某水利工程实例，对其溢洪道整体水力特性进行了水气二相流三维模拟研究。计算得到水深、流速、压强沿程分布、空腔形态、空中水舌形态及水舌挑距等一系列水力要素计算值，模拟结果与模型试验结果吻合良好，分析了燕尾型挑坎的空中水舌形态，形成过程。研究结果表明采用三维数值模拟的方法研究接燕尾型挑坎的溢洪道水流是可行的，其结果能为类似工程起到一定的指导作用。
採用標準的 k～ε紊流模型與VOF方法，結閤某水利工程實例，對其溢洪道整體水力特性進行瞭水氣二相流三維模擬研究。計算得到水深、流速、壓彊沿程分佈、空腔形態、空中水舌形態及水舌挑距等一繫列水力要素計算值，模擬結果與模型試驗結果吻閤良好，分析瞭燕尾型挑坎的空中水舌形態，形成過程。研究結果錶明採用三維數值模擬的方法研究接燕尾型挑坎的溢洪道水流是可行的，其結果能為類似工程起到一定的指導作用。
채용표준적 k～ε문류모형여VOF방법，결합모수리공정실례，대기일홍도정체수력특성진행료수기이상류삼유모의연구。계산득도수심、류속、압강연정분포、공강형태、공중수설형태급수설도거등일계렬수력요소계산치，모의결과여모형시험결과문합량호，분석료연미형도감적공중수설형태，형성과정。연구결과표명채용삼유수치모의적방법연구접연미형도감적일홍도수류시가행적，기결과능위유사공정기도일정적지도작용。
In order to study the hydraulic characteristics of the spillway with dovetail-shaped flip bucket ,the standard turbulence model and VOF water-air two phases model are used to describe water flow and track free surface flow in numerical simulation ,thus the water depth ,velocity ,hydraulic pressure ,free water surface of the aerating cavity ,shape of water tongue and horizontal length are obtained ,the results are in good agreement with the data obtained in experiments .What's more ,the producing and the shape of water tongue are analyzed .The successful simulation shows that this method can be applied to calculation of the flow in complicated spillway tunnel with dovetail-shaped flip bucket .And this research serves as a guide to similar projects .
