水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2014年
5期
133-136
,共4页
竖井旋流泄洪洞%数值模拟%消能率
豎井鏇流洩洪洞%數值模擬%消能率
수정선류설홍동%수치모의%소능솔
vortex spillway tunnel%numerical simulation%energy dissipation ratio
在竖井旋流泄洪洞中,下挖消力井深度对竖井消能率有较大影响,但在工程中关于消力井合理设计深度的参考资料比较少。运用数值模拟方法,对竖井旋流泄洪洞不同竖井高度和消力井深度竖井消能率进行研究,可为消力井的合理应用提供依据。研究结果表明:应用消力井会使竖井的消能率增加,当竖井高度为50 m~110 m时,随消力井深度增大,竖井消能率变化趋势为先增大后减小;当竖井高度大于120 m时,消力井对竖井消能率影响较小,竖井消能率只有较小增加。
在豎井鏇流洩洪洞中,下挖消力井深度對豎井消能率有較大影響,但在工程中關于消力井閤理設計深度的參攷資料比較少。運用數值模擬方法,對豎井鏇流洩洪洞不同豎井高度和消力井深度豎井消能率進行研究,可為消力井的閤理應用提供依據。研究結果錶明:應用消力井會使豎井的消能率增加,噹豎井高度為50 m~110 m時,隨消力井深度增大,豎井消能率變化趨勢為先增大後減小;噹豎井高度大于120 m時,消力井對豎井消能率影響較小,豎井消能率隻有較小增加。
재수정선류설홍동중,하알소력정심도대수정소능솔유교대영향,단재공정중관우소력정합리설계심도적삼고자료비교소。운용수치모의방법,대수정선류설홍동불동수정고도화소력정심도수정소능솔진행연구,가위소력정적합리응용제공의거。연구결과표명:응용소력정회사수정적소능솔증가,당수정고도위50 m~110 m시,수소력정심도증대,수정소능솔변화추세위선증대후감소;당수정고도대우120 m시,소력정대수정소능솔영향교소,수정소능솔지유교소증가。
When using vortex spillway tunnel as the way of energy dissipation ,the depths of the stilling wells could have great influence on the energy dissipation ratio .However there are few researches dealing with this issue .Here ,the nu-merical simulation was applied to find out the energy dissipation ratio regarding to different depths of the stilling wells , which could provide valuable information for practical application of the wells .The results indicate that the application of stilling wells will increase the energy dissipation ratio .When the depth is 50m to 110m ,the energy dissipation ratio first increases and then decreases with the increasing of the depth ,however when the depth exceeds 120 m ,it has little im-pact on the energy dissipation ratio ,which only shows a small increase .