摘要
采用RNGκ-ε湍流模型与VOF多相模型对扭曲斜切型挑坎进行水气两相流三维数值模拟,模拟了挑流水舌的空中形态,水舌挑距,水舌挑高,以及水舌速度分布、湍动能k与湍动能耗散率ε的分布情况.数值模拟成果与模型试验观测数据吻合良好,验证了该数值模拟方法的可靠性和合理性,可以为工程优化设计提供科学依据.
The RNGk- εturbulent model and VOF multiphase model were applied to simulate the water-air two phase jet flow from a contortedbeveled jet bucket to a plunge pool. The shape of tongue,horizontal length and height were simulated,and the distribution of velocity,turbulent kinetic energy kand turbulent dissipation rate εin the computation domain were obtained. Comparison with the model tests showed that the simulated results were in good accordance with the test data,and the numerical simulation method in this paper was highly reliable and rational. Furthermore,it also can provide some data for engineering design.
出处
《西南民族大学学报（自然科学版）》
CAS
2015年第6期773-777,共5页
Journal of Southwest Minzu University(Natural Science Edition)
基金
四川省学术和技术带头人培养基金(2012DTY020)
关键词
扭曲斜切挑坎
挑流水舌
水气二相流
VOF法
数值模拟
contorted ＆ beveled jet bucket
jet nappe
water-air two phase
VOF model
numerical simulation
