适用于回流区流体力学模拟计算的三种高雷诺数湍流模型的比较

Comparison of Three High - Reynolds - number Models in Recirculation Zones for Simulation of Computational Fluid Dynamics

在数值模拟计算领域,标准k-ε模型、CHEN-KIMk-ε模型和RNGk-ε模型属于两方程的高雷诺数湍流模型,运用这三种模型对暖通空调室内空气回流区进行计算流体力学(CFD)模拟,结果表明采用CHEN-KIMk-ε模型和RNGk-ε模型的模拟结果差别不大,但二者均优于标准k-ε模型。

Standard -εmodel, CHEN- KIM -εmodel and RNG -εmodel are two equations- high- Reynoldsnumber turbulent models. The airflow in the air- conditioning room recirculation zones was simulated with the models by CFD. The result indicates that CHEN- KIM -εmodel and RNG -εmodel are superior to the standard -εmodel.