混合晶格 博尔兹曼方法用于多相流
Thomas Gregorczyk1, Song Zhao1, Pierre Boivin1
1M2P2, Centrale Med, CNRS, Aix Marseille Univ, Marseille, France.
Physical review. E
|September 16, 2025
概括
一种新的混合方法结合了格子博尔兹曼和有限体积方案,用于多相流动模拟. 这种方法准确地模拟了流体行为,包括复杂的液体喷流分解现象.
科学领域:
- 计算流体动力学的流体动力学.
- 多相流量模拟多相流量模拟
- 数字方法 数字方法.
背景情况:
- 精确模拟多相流在各种工程应用中至关重要.
- 现有的方法在捕捉复杂的接口动态和相位过渡时经常面临挑战.
- 需要对质量,动量和相场演变采取统一的方法.
研究的目的:
- 引入一种新的混合数值方法来模拟多相流.
- 为了将格子博尔茨曼法 (LBM) 与有限体积方案 (FVS) 结合起来.
- 为了验证不同流动模式的拟议方法.
主要方法:
- 一种混合方法,使用LBM解决平均质量和动量.
- 一个顺序参数 (相位指标) 通过经典的FVS解决.
- 适应平衡公式和宏观重建的LBM方案.
- 分析一致性确认和验证在正典情况下.
主要成果:
- 混合方案显示了分析的一致性.
- 成功模拟了2D液体喷气破裂在各种制度.
- 观察到的现象包括滴水,曲的断裂和原子化.
结论:
- 混合LBM-FVS方法是多相流量模拟的强大工具.
- 该方法准确地捕捉了复杂的接口动态和断裂机制.
- 这种方法为先进的流体动力学研究提供了一个有前途的途径.
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