水下爆炸异相气泡动力学特性的Euler有限元数值模拟研究

唐皓; 刘云龙; 冯集团; 鞠欣洋; 张阿漫

doi:10.21656/1000-0887.440047

水下爆炸异相气泡动力学特性的Euler有限元数值模拟研究

doi: 10.21656/1000-0887.440047

唐皓^1,,
刘云龙^1, ,,
冯集团¹,
鞠欣洋¹,
张阿漫^{1, 2}

1.
哈尔滨工程大学船舶工程学院，哈尔滨 150001
2.
哈尔滨工程大学南海研究院，海南三亚 572024

(我刊编委张阿漫来稿)

基金项目:

海南省财政科技计划 ZDKJ2021020

国防基础科研项目 JCKY2021604B027

详细信息

作者简介:
唐皓(1995—)，男，博士(E-mail: tang_hao@hrbeu.edu.cn)

通讯作者:
刘云龙(1988—)，男，教授，博士，博士生导师(通讯作者. E-mail: yunlong_liu@hrbeu.edu.cn)

中图分类号: O351.2
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- 文章访问数: 617
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- 被引次数: 0
出版历程
- 收稿日期: 2023-02-23
- 修回日期: 2023-03-23
- 刊出日期: 2023-08-01

Eulerian Finite-Element Numerical Simulation Investigation on the Dynamic Characteristics of Out-of-Phase Bubbles in Underwater Explosions

TANG Hao^1
,,
LIU Yunlong^{1
, ,},
FENG Jituan¹,
JU Xinyang¹,
ZHANG Aman^{1, 2}

1.
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, P.R.China
2.
Nanhai Institute of Harbin Engineering University, Sanya, Hainan 572024, P.R.China

(Contributed by ZHANG Aman, M. AMM Editorial Board)

摘要

摘要: 该研究基于Euler有限元方法建立了水下爆炸异相气泡动力学模型，将计算结果和气泡统一理论以及异相爆炸试验进行对比验证计算模型的有效性. 通过和自由场单气泡进行对比分析，发现异相爆炸冲击波对气泡做功是异相爆炸气泡总能量增加的原因，相位差绝对值越接近π、距离参数越小气泡总能量损失越少，后产生的气泡会使先产生的气泡提前坍缩. 气泡的射流方向受相位差影响，相位差为零时产生对向射流，其他相位差产生反向射流.
- 水下爆炸 /
- Euler有限元 /
- 异相气泡
Abstract: An underwater explosion out-of-phase bubbles dynamics model was developed based on the Eulerian finite-element method, with the calculation results compared to the unified bubble theory and the out-of-phase explosion experiment to validate the calculation model. Compared with the case of a single bubble in the free field, it is found that the work done by the shock wave of the out-of-phase explosion on the bubble is the cause for the increase of the total energy of the bubble. The closer the absolute value of the phase difference is to π, the smaller the distance parameter is, and the less the total energy loss of the bubble is. The later bubble can cause the first bubble to collapse in advance. The jet direction of the bubble is influenced by the phase difference. When the phase difference is zero, jets are directed toward each other, but for other phase differences, the backward jets occur.
- underwater explosion /
- Eulerian finite-element method /
- out-of-phase bubbles
edited-by

edited-by
注释:

1) (我刊编委张阿漫来稿)

HTML全文

图 1 异相双气泡问题示意图

Figure 1. Schematic diagram of the out-of-phase double-bubble problem

下载: 全尺寸图片幻灯片

图 2 EFEM计算结果与气泡统一理论^[40]计算结果对比

注为了解释图中的颜色，读者可以参考本文的电子网页版本，后同.

Figure 2. Comparisons between the EFEM calculation results and the unified theory calculation results

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图 3 EFEM计算结果与试验结果^[41]的气泡形态对比

Figure 3. Comparison of bubble shapes between the EFEM calculation results and the experimental results^[41]

下载: 全尺寸图片幻灯片

图 4 异相爆炸双气泡和自由场单气泡对比

Figure 4. The comparison between out-of-phase explosion bubbles and the free-field single bubble

下载: 全尺寸图片幻灯片

图 5 异相爆炸双气泡和自由场单气泡的能量变化

Figure 5. Energy changes of out-of-phase explosion bubbles and the free-field single bubble

下载: 全尺寸图片幻灯片

图 6 不同相位异相爆炸双气泡的迁移

Figure 6. Migration histories of out-of-phase explosion bubbles in different phases

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图 7 不同相位异相爆炸双气泡的周期

Figure 7. Periods of out-of-phase explosion bubbles in different phases

下载: 全尺寸图片幻灯片

图 8 不同相位异相爆炸双气泡系统的总能量变化

Figure 8. Total energy changes of out-of-phase explosion bubbles system with different phases

下载: 全尺寸图片幻灯片

图 9 不同距离参数异相爆炸双气泡动态特性

Figure 9. Dynamic characteristics of out-of-phase explosion bubbles with different distance parameters

下载: 全尺寸图片幻灯片

图 10 不同距离参数异相爆炸双气泡系统的总能量变化

Figure 10. Total energy changes of out-of-phase explosion bubbles with different distance parameters

下载: 全尺寸图片幻灯片

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