液面冲击引起液滴飞溅问题的CIP方法数值模拟

计算物理 ›› 2016, Vol. 33 ›› Issue (1): 39-48.

液面冲击引起液滴飞溅问题的CIP方法数值模拟

赵西增^1,2,3, 叶洲腾¹

1. 浙江大学海洋学院, 杭州 310058;
2. 卫星海洋环境动力学国家重点实验室国家海洋局第二海洋研究所;
3. 南京水利科学研究院水文水资源与水利工程科学国家重点实验室, 南京 210029

收稿日期:2014-12-25 修回日期:2015-01-15 出版日期:2016-01-25 发布日期:2016-01-25
作者简介:赵西增(1979-),男,博士,副教授,博士生导师,主要从事波浪与建筑物相互作用研究,E-mail:xizengzhao@zju.edu.cn
基金资助:
国家自然科学基金（51209184，51479175），浙江省杰出青年基金（LR16E09002）及水文水资源与水利工程科学国家重点实验室开放基金（2013490211）资助项目

Numerical Study of Droplet Splashing in a CIP-based Model

ZHAO Xizeng^1,2,3, YE Zhouteng¹

1. Ocean College Zhejiang University, Hangzhou 310058, China;
2. State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography, SOA, China;
3. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China

Received:2014-12-25 Revised:2015-01-15 Online:2016-01-25 Published:2016-01-25

摘要/Abstract

摘要： 利用自主研发的CIP-ZJU（Constrained Interpolation Profile Method in Zhejiang University）高精度数学模型研究强非线性自由表面流动问题.模型在直角坐标系统下建立，采用紧致插值曲线CIP方法作为流场的基本求解器，通过多相流的方式实现固-液-气耦合同步求解，采用平衡格式的VOF（VOF/WLIC：Volume of Fluid/Weighted LineInterface Calculation）自由面捕捉方法改进了原模型，利用浸入边界方法处理运动物体.利用改进的CIP模型开展了不同类型的物体冲击液面引起的液滴飞溅现象的数值模拟，重点分析液滴飞溅过程中的自由液面变形、作用荷载和物体位置等.通过数值结果与实验结果的比较验证模型的可靠性.结果表明：平衡格式的VOF自由面捕捉方法能更精确地重构自由面，本文的数学模型可精确预测强非线性自由表面流动问题.

关键词: 液滴飞溅, 物体入水, VOF方法, CIP方法, 流固耦合

Abstract: A multiphase model CIP-ZJU (Constrained Interpolation Profile Method in Zhejiang University) is developed, which is applicable of simulating free surface flow including liquid splashing, wave breaking and overturning. Numerical simulations are performed with a Constrained Interpolation Profile(CIP)-based method adopted as the base flow solver combined with an enhanced VOF (Volume of Fluid) type scheme as free surface capturing method. To assess the algorithm and its versatility, drop impact onto flat liquid film and water entry of cylinders are simulated. Good agreement is obtained in comparing computational results with experimental data. It is demonstrated that many typical features in complex flow patterns can be captured in the present numerical model.

Key words: liquid splashing, water entry, VOF method, CIP method, fluid-structure interaction

中图分类号:

O352

赵西增, 叶洲腾. 液面冲击引起液滴飞溅问题的CIP方法数值模拟[J]. 计算物理, 2016, 33(1): 39-48.

ZHAO Xizeng, YE Zhouteng. Numerical Study of Droplet Splashing in a CIP-based Model[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 33(1): 39-48.

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