人民黄河
人民黃河
인민황하
Yellow River
2015年
4期
102-104
,共3页
宽尾墩%消力池%底流消能%三维数值模拟
寬尾墩%消力池%底流消能%三維數值模擬
관미돈%소력지%저류소능%삼유수치모의
flaring gate pier%stilling basin%energy dissipation by underflow%3D numerical simulation
宽尾墩和消力池联合消能在水利枢纽工程中已经得到广泛应用,为了进一步研究其消能方式的水力特性,采用RNGκ-ε双方程紊流模型和VOF方法对某表孔泄洪闸的泄洪水流进行三维数值模拟,对宽尾墩表孔泄流能力、水流流态和流速、闸室内水面线、掺气情况等进行了研究,并结合物理模型试验结果对数值模拟结果进行了验证。结果表明,将宽尾墩应用于溢流坝,形成宽尾墩+消力池一体化消能设施,兼有宽尾墩和消力池底流消能的优点,联合消能效果良好。
寬尾墩和消力池聯閤消能在水利樞紐工程中已經得到廣汎應用,為瞭進一步研究其消能方式的水力特性,採用RNGκ-ε雙方程紊流模型和VOF方法對某錶孔洩洪閘的洩洪水流進行三維數值模擬,對寬尾墩錶孔洩流能力、水流流態和流速、閘室內水麵線、摻氣情況等進行瞭研究,併結閤物理模型試驗結果對數值模擬結果進行瞭驗證。結果錶明,將寬尾墩應用于溢流壩,形成寬尾墩+消力池一體化消能設施,兼有寬尾墩和消力池底流消能的優點,聯閤消能效果良好。
관미돈화소력지연합소능재수리추뉴공정중이경득도엄범응용,위료진일보연구기소능방식적수력특성,채용RNGκ-ε쌍방정문류모형화VOF방법대모표공설홍갑적설홍수류진행삼유수치모의,대관미돈표공설류능력、수류류태화류속、갑실내수면선、참기정황등진행료연구,병결합물리모형시험결과대수치모의결과진행료험증。결과표명,장관미돈응용우일류패,형성관미돈+소력지일체화소능설시,겸유관미돈화소력지저류소능적우점,연합소능효과량호。
The joint energy dissipation of flaring gate pier and stilling basin has been applied in a lot of hydraulic engineering. In order to further study its hydraulic characteristics,the RNGκ-εmodel and VOF method were used to simulate the flow of a flood gate. The calculat-ed results of discharge capacity,flow pattern,velocity distribution and water surface profile were compared with the experimental data,and they were in good agreement with each other. The results have shown that,this integrated energy dissipation facility by applying flaring gate pier to stilling basin has the advantages of both flaring gate pier and energy dissipation by underflow and can achieve effective energy dissipation.