基于相场的格子博尔茨曼法,用于具有界面质量或热传递的双相流
Baihui Chen1, Chengjie Zhan1, Zhenhua Chai1
1School of Mathematics and Statistics, <a href="https://ror.org/00p991c53">Huazhong University of Science and Technology</a>, Wuhan, 430074, China; Institute of Interdisciplinary Research for Mathematics and Applied Science, <a href="https://ror.org/00p991c53">Huazhong University of Science and Technology</a>, Wuhan 430074, China; and Hubei Key Laboratory of Engineering Modeling and Scientific Computing, <a href="https://ror.org/00p991c53">Huazhong University of Science and Technology</a>, Wuhan 430074, China.
Physical review. E
|August 20, 2024
概括
我们开发了一种新的相场格子博尔兹曼 (LB) 方法,用于具有界面质量或热传递的双相流. 这种LB方法精确模拟复杂的流体动力学和热量/质量转移现象.
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
- 阶段场建模 阶段场建模
背景情况:
- 具有界面质量或热传递的双相流在许多工程应用中至关重要.
- 准确模拟这些现象需要强大的数值方法.
- 现有的方法在捕捉复杂的界面动态方面可能面临挑战.
研究的目的:
- 开发一种新的基于相场的格子博尔兹曼 (LB) 方法.
- 为了建模采用界面质量或热传输的双相流.
- 验证方法的准确性和效率.
主要方法:
- 基于相场的格子博尔兹曼 (LB) 方法.
- 查普曼-恩斯科格对方程恢复的分析.
- 一种具有辅助源分配功能的新LB模型.
- 对基准问题进行数值模拟.
主要成果:
- LB方法正确地恢复了相场,流量和度/温度的控制方程.
- 拟议的辅助源函数简化了衍生项的离散.
- 该方法准确地模拟了具有界面质量或热传递的双相流.
- 研究了质量/热转移对流体粘度的影响.
结论:
- 开发的相场LB方法适用于模拟具有界面质量或热传递的双相流.
- 该方法为如此复杂的问题提供了一种高效而准确的方法.
- 这项工作为相关领域的研究人员和工程师提供了宝贵的工具.
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