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arXiv 1604.04863math.NAcs.NAphysics.comp-ph
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两相流中动态毛细压力的数值研究:基于自适应移动网格方法

A numerical study of two-phase flow with dynamic capillary pressure using an adaptive moving mesh method

Utrecht University(乌得勒支大学)

Hong Zhang, Paul Andries Zegeling

AI总结:

本文研究了考虑动态毛细压力的两相流数值建模,通过行波假设和高效数值方法分析动态毛细系数、渗流速率及初始边界值的影响,验证了行波解的有效性。

摘要:

受饱和度过冲观测的启发,本文研究了包含动态毛细压力的两相流数值建模。通过行波假设和高效数值方法,系统研究了动态毛细系数、渗流速率及初始和边界值的影响。行波解可能表现出单调、非单调或平台状行为。特别关注非单调型态。通过求解偏微分方程验证行波结果。利用Brooks-Corey模型计算解与实验室饱和度过冲测量对比,验证了本方法的有效性。

英文摘要:

Motivated by observations of saturation overshoot, this paper investigates numerical modeling of two-phase flow incorporating dynamic capillary pressure. The effects of the dynamic capillary coefficient, the infiltrating flux rate and the initial and boundary values are systematically studied using a travelling wave ansatz and efficient numerical methods. The travelling wave solutions may exhibit monotonic, non-monotonic or plateau-shaped behaviour. Special attention is paid to the non-monotonic profiles. The travelling wave results are confirmed by numerically solving the partial differential equation using an accurate adaptive moving mesh solver. Comparisons between the computed solutions using the Brooks-Corey model and the laboratory measurements of saturation overshoot verify the effectiveness of our approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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