化工学报 ›› 2023, Vol. 74 ›› Issue (12): 4881-4891.DOI: 10.11949/0438-1157.20231147
黄杏梅1(), 张莹2, 王宗勇1, 李雅侠1, 张丽2()
收稿日期:
2023-11-07
修回日期:
2023-12-12
出版日期:
2023-12-25
发布日期:
2024-02-19
通讯作者:
张丽
作者简介:
黄杏梅(1997—),女,硕士研究生,17819187073@163.com
基金资助:
Xingmei HUANG1(), Ying ZHANG2, Zongyong WANG1, Yaxia LI1, Li ZHANG2()
Received:
2023-11-07
Revised:
2023-12-12
Online:
2023-12-25
Published:
2024-02-19
Contact:
Li ZHANG
摘要:
实验测量了电场条件下盐水中氯气气泡的大小、气泡间距离及其聚并时间。采用两相流和相场模型对电场条件下氯气聚并过程进行了数值模拟。结果表明,采用实验和数值模拟方法所得到的气泡聚并时间的偏差为11.0%,说明两者吻合较好。在此基础上,分析了不同电压下气泡的聚并过程,考察了气泡直径、液体表面张力和黏度对氯气气泡聚并过程的影响。结果表明:在电压为0~200 V范围内,电压、气泡直径和液体黏度越大,气泡间距越大,聚并时间越长;液体的表面张力越大,气泡间距越小,聚并时间越短。
中图分类号:
黄杏梅, 张莹, 王宗勇, 李雅侠, 张丽. 水平均匀电场下盐水中氯气气泡的聚并特性[J]. 化工学报, 2023, 74(12): 4881-4891.
Xingmei HUANG, Ying ZHANG, Zongyong WANG, Yaxia LI, Li ZHANG. Aggregation characteristics of chlorine bubbles in brine under horizontal uniform electric field conditions[J]. CIESC Journal, 2023, 74(12): 4881-4891.
物质 | ρ/(kg/m3) | μ/(Pa·s) | εr | σ/(N/m) |
---|---|---|---|---|
14%氯化钠溶液 | 1101 | 0.00124 | 82.3 | 0.07734 |
氯气 | 2.985 | 0.0000133 | 1.8 | — |
表1 材料的物性参数
Table 1 Physical property parameters of materials
物质 | ρ/(kg/m3) | μ/(Pa·s) | εr | σ/(N/m) |
---|---|---|---|---|
14%氯化钠溶液 | 1101 | 0.00124 | 82.3 | 0.07734 |
氯气 | 2.985 | 0.0000133 | 1.8 | — |
图12 液体表面张力对聚并过程中压力分布和速度的影响(t=3 ms,U1=100 V,图中黑色实线为气相体积分数为0.5时的等值线)
Fig.12 The effect of liquid surface tension on pressure distribution and velocity during coalescence process (t=3 ms, U1=100 V)
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