Abstract This research aimed to explore the accuracy of different momentum exchange models in the Eulerian multiphase method. Effects of different correlations for interaction forces on predicting of subcooled fluid flow boiling parameters in heated vertical tubes were studied numerically. Specifically, numerical simulations were carried out using several combinations of the momentum exchange coefficients separately. The results were compared with the experimental data of two benchmark test cases, and the error percentages were calculated. Results indicated that the accuracy of the two-phase simulations depended on the selection of the appropriate combination of momentum exchange models. However, it was found that modeling drag with Ishii and Universal, lift with Moraga and Saffman, wall lubrication with Antal et al. and Hosokawa, turbulent dispersion with De Bertodano, and turbulent interaction with Troshko-Hassan correlations generally led to higher accuracy. The results showed that the experimental benchmark data could be simulated numerically with the minimum relative error of 6.97%. The study also showed that wall lubrication and lift had negligible impacts on the numerical results for most working conditions.

中文翻译：

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相间动量交换模型对过冷流动沸腾模拟的影响

摘要 本研究旨在探讨欧拉多相法中不同动量交换模型的准确性。数值研究了相互作用力的不同相关性对加热垂直管中过冷流体流动沸腾参数预测的影响。具体而言，分别使用动量交换系数的几种组合进行数值模拟。将结果与两个基准测试用例的实验数据进行比较，并计算错误百分比。结果表明，两相模拟的准确性取决于动量交换模型的适当组合的选择。然而，发现使用 Ishii 和 Universal 建模阻力，使用 Moraga 和 Saffman 进行提升，使用 Antal 等人进行壁润滑。还有细川，De Bertodano 的湍流分散以及与 Troshko-Hassan 相关性的湍流相互作用通常会导致更高的准确度。结果表明，实验基准数据可以进行数值模拟，最小相对误差为6.97%。该研究还表明，壁面润滑和升力对大多数工作条件下的数值结果的影响可以忽略不计。