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Two-phase bubbly flow simulation using CFD method: A review of models for interfacial forces
Progress in Nuclear Energy ( IF 2.7 ) Pub Date : 2020-07-01 , DOI: 10.1016/j.pnucene.2020.103360
Irfan Khan , Mingjun Wang , Yapei Zhang , Wenxi Tian , Guanghui Su , Suizheng Qiu

Abstract The computational fluid dynamics (CFD) method has been widely adopted and accepted in the nuclear reactor safety analysis in the recent years. Especially, the application of computational multiphases fluid dynamics (CMFD) is very common in different industrial applications, and definitely in the pressurized water reactor (PWR). In two-phase bubbly flow simulation, the momentum exchange between the phases requires interfacial forces i.e., interfacial drag, lift, turbulent dispersion, wall lubrication, and virtual mass. In the past, numerous models were developed for these interfacial forces with reasonable accuracy. However, agreement on the generally applicable combination of models for these interfacial forces is yet to be achieved. The selection of proper models for these interfacial forces is very important to successfully predict the bubbles concentration distribution and velocity profile. Currently, the practice of interfacial forces model selection from numerous models is mostly ad-hoc based. Therefore, in this article current status of interfacial forces models within the prospect of two-phase bubbly flow CFD simulation are summarized and then parametric dependence, and ranges of applicability of these models are reviewed. Furthermore, some of the limitations of the models for these interfacial forces are determined and future recommendations are made.

中文翻译:

使用 CFD 方法的两相气泡流模拟:界面力模型综述

摘要 近年来,计算流体动力学(CFD)方法在核反应堆安全分析中被广泛采用和接受。特别是,计算多相流体动力学 (CMFD) 的应用在不同的工业应用中非常普遍,尤其是在压水反应堆 (PWR) 中。在两相气泡流模拟中,相之间的动量交换需要界面力,即界面阻力、升力、湍流分散、壁面润滑和虚拟质量。过去,为这些界面力开发了许多具有合理精度的模型。然而,尚未就这些界面力的模型的普遍适用组合达成一致。为这些界面力选择合适的模型对于成功预测气泡浓度分布和速度分布非常重要。目前,从众多模型中选择界面力模型的做法大多是基于临时的。因此,本文总结了两相气泡流CFD模拟前景中界面力模型的现状,然后回顾了这些模型的参数依赖性和适用范围。此外,确定了这些界面力模型的一些局限性,并提出了未来的建议。本文总结了两相气泡流 CFD 模拟前景中界面力模型的现状,然后回顾了这些模型的参数依赖性和适用范围。此外,确定了这些界面力模型的一些局限性,并提出了未来的建议。本文总结了两相气泡流 CFD 模拟前景中界面力模型的现状,然后回顾了这些模型的参数依赖性和适用范围。此外,确定了这些界面力模型的一些局限性,并提出了未来的建议。
更新日期:2020-07-01
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