Numerical Research on Two-phase Flow and Heat Transfer Characteristics on a Liquid-Reactor Experimental Model
-
摘要: 应用欧拉两相流最新CFD (computational fluid dynamics)模型,对某溶液堆台架模型堆芯内气-液两相流动传热进行数值分析。堆芯内气泡被考虑为不同直径的组分,摒弃了传统均一离散相的假设(即假设所有气泡为同一直径和形状),把应用群体平衡理论建立起来的MUSIG (MUltiple-SIze-Group)模型考虑到CFD模拟中,MUSIG模型用于描述堆芯内气泡流动特性和尺度分布。同时,对采用MUSIG模型和传统两相流模型的模拟结果进行了比较分析。结果表明,采用MUSIG模型的模拟结果与台架实验结果吻合较好。Abstract: The MUSIG model and the mono-disperse model are used to simulate the two-phase flow and heat transfer phenomena in a liquid-reactor experimental model.In simulation with MUSIG model,bubbles in the model is divided into 5 groups and these groups are used to analyze the bubble distribution and change in the flow.Luo and Svendsen model and Prince and Blanch model are used to describe the break and aggregation between bubbles.In simulation with mono-disperse model,bubbles in the liquid-reactor model is considered to have only one size,so the break and aggregation between bubbles are not in consideration.The results of simulation with the two models are compared,and the MUSIG model comparatively tallies with results of experiment.
-
Key words:
- Liquid-reactor /
- Two-phase flow /
- Numerical Simulation /
- Computational Fluid Dynamics
-
计量
- 文章访问数: 7
- HTML全文浏览量: 2
- PDF下载量: 0
- 被引次数: 0
下载:
