对模拟气液双相流系统的阻力模型的研究
Simon Yao Adzaklo1,2, Kwame Sarkodie3, Emmanuel Agyei4,5
1Department of Chemical Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Scientific reports
|November 11, 2025
概括
准确的气液流量预测需要仔细选择接口阻力模型. 格雷斯和其他人. 该模型最好预测泡流核心区域,尽管所有模型都在墙壁附近扎.
科学领域:
- 流体动力学 流体动力学
- 多相流量建模多相流量建模
- 计算流体动力学 (CFD) 是一种计算流体动力学.
背景情况:
- 准确预测气液双相流量对于工业系统至关重要.
- 界面力模型,特别是阻力,显著影响阶段之间的动量传输.
- 选择合适的拖动模型是可靠模拟的关键.
研究的目的:
- 在数值上研究和评估六种广泛采用的阻力系数模型.
- 评估这些模型在多分散泡流中对局部辐射气体体积分的预测性能.
- 将模拟结果与基准实验数据进行比较.
主要方法:
- 采用了欧勒尔-欧勒尔的双流体框架.
- 使用"多重大小"组 (MUSIG) 人口平衡模型.
- 使用ANSYS CFX 14.5进行了数值模拟,并与Lucas等人的实验数据进行了验证. 和蒙罗斯-安德鲁等人.
主要成果:
- 格雷斯和其他人. 该模型在MTLoop数据集的核心区域显示出优异的预测 (MAPE <6%).
- 与卢卡斯等人相比,所有模型在墙壁附近的性能都较差. 数据集.数据集.数据集.
- 西蒙内特等人. 其他. 由于群体效应的考虑,该模型在高气体表面速度的情况下提高了性能.
结论:
- 模型的表现有所不同,Grace等. 显示最好的核心区域预测.
- 所有的模型都与实验数据在管芯附近比在墙壁附近更好地一致.
- 对于工业应用来说,开发改进的阻力模型来实现泡流动力学是必不可少的.
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