水科学与工程技术
水科學與工程技術
수과학여공정기술
WATER SCIENCES AND ENGINEERING TECHNOLOGY
2013年
6期
43-45
,共3页
分汊河道水流%分流比%VOF法%刚盖假定%分流宽度
分汊河道水流%分流比%VOF法%剛蓋假定%分流寬度
분차하도수류%분류비%VOF법%강개가정%분류관도
braided stream%split ratio%VOF method%rigid-lid assumption%distribution width
结合曹继文关于明渠岸边横向取水的水槽试验成果，应用RNG紊流模型，采用两种自由表面处理方法即刚盖假定和VOF法，对分汊河道不同分流比工况下的水流运动进行三维数值模拟。通过数值模拟计算，得出不同表面处理方法下分汊河道不同分流比工况下的流速分布、水流特性等结果，分流比对分流宽度影响较为明显。
結閤曹繼文關于明渠岸邊橫嚮取水的水槽試驗成果，應用RNG紊流模型，採用兩種自由錶麵處理方法即剛蓋假定和VOF法，對分汊河道不同分流比工況下的水流運動進行三維數值模擬。通過數值模擬計算，得齣不同錶麵處理方法下分汊河道不同分流比工況下的流速分佈、水流特性等結果，分流比對分流寬度影響較為明顯。
결합조계문관우명거안변횡향취수적수조시험성과，응용RNG문류모형，채용량충자유표면처리방법즉강개가정화VOF법，대분차하도불동분류비공황하적수류운동진행삼유수치모의。통과수치모의계산，득출불동표면처리방법하분차하도불동분류비공황하적류속분포、수류특성등결과，분류비대분류관도영향교위명현。
This paper referenced the test results Cao ji-wen booked of lateral intake of open channel along the shore, ap-plied RNG turbulence model, used two kinds of free surface treatment which is rigid-lid assumption and VOF method, make the three-dimensional numerical simulation of flow movement of different split ratio in branching river. Through nu-merical simulation, obtained the velocity distribution, flow characteristics under different methods were obtained. The ef-fect of split ratio on distribution width is obvious.
