CAJ | 학술논문

采用标准k～ε湍流模型,利用VOF法追踪自由水面对阿拉沟水库溢洪道设计和校核工况下水面线、断面流态进行数值模拟,并将两种工况下水流特性进行比较,结果表明水面线实测值与计算值二者吻合良好,各断面平均流速实测值与计算值误差在允许范围内。因此采用数值模拟能够反映不同工况条件下溢洪道的水流特性,可为溢洪道结构设计提供可靠依据,具有一定的实际应用价值。
채용표준k～ε단류모형,이용VOF법추종자유수면대아랍구수고일홍도설계화교핵공황하수면선、단면류태진행수치모의,병장량충공황하수류특성진행비교,결과표명수면선실측치여계산치이자문합량호,각단면평균류속실측치여계산치오차재윤허범위내。인차채용수치모의능구반영불동공황조건하일홍도적수류특성,가위일홍도결구설계제공가고의거,구유일정적실제응용개치。
The standard k~ε turbulence model and VOF method are employed to numerically simulate the water surface line and cross flow of Alagou Reservoir's spillway under design and check conditions,and the flow characteristics in two congditions are compared.The analysis result shows that both the measured value and calculated value of the water surface line are matched well,simultaneously,the measured value and calculated value of each sectional average velocity are within the error range.So the numerical simulation could reflect the spillway's flow characteristics under different working conditions,and provide reliable basis for the design of spillway structure,thus having a certain practical value.