静止分层环境中圆形浮力射流全场特性的数值模拟

Numerical Simulation of Whole Field Behavior for Round Buoyant Jet in Static Stratified Environment

本文利用混合有限分析法与交错网格的思想,结合文献[3]中提出的数学模型和本文给出的有效边界条件,对静止分层环境中浮力射流全场进行了数值模拟,预报结果与试验资料的良好吻合,表明本文的数学模型及混合有限分析法可正确地模拟分层环境中圆形浮力射流全场的形成过程及其水力热力特性。

The two-scale κ-ε turbulence model is used to obtain a mathematical model of round buoyant jet in static stratified environment. Hybrid Finite Analytic Method and staggered grid are applied to calculate the whole field of this flow patten. The agreement between the calculated results and experimental data for the gross behavior is good, and it shows that the turbulence model and numerical method in this paper can be used to correctly predict the behavior of round bouyant jet in static environment.