Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment

被引:4
作者
He Yuchen [1 ]
Uehara, Satoshi [2 ]
Takana, Hidemasa [2 ]
Nishiyama, Hideya [2 ]
机构
[1] Tohoku Univ, Grad Sch Engn, Aoba Ku, 6-6-01 Aza Aoba Aramaki, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, Inst Fluid Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
基金
日本学术振兴会;
关键词
chemical reaction model; water purification; bubble discharge; diffusion; DECOMPOSITION;
D O I
10.1088/1009-0630/18/9/09
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
A zero-dimensional model to simulate a nano-pulse-discharged bubble in water was developed. The model consists of gas and liquid phases corresponding to the inside and outside of the bubble, respectively. The diffusions of chemical species from the gas to the liquid phase through the bubble interface was also investigated. The initial gas is Ar, but includes a little H2O and O-2 in the bubble. The time evolution of the OH concentration in the liquid phase was mainly investigated as an important species for water treatment. It was shown that OH was generated in the bubble and then diffused into the liquid. With the application of a continuous nano-pulse discharge, more OH radicals were generated as the frequency increased at a low voltage for a given power consumption.
引用
收藏
页码:924 / 932
页数:9
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