Based on Gilmore bubble dynamic equation, a model, which takes the viscosity, surface tension, compressibility, water molecular diffusion, and heat conduction into consideration, is built to describe bubble dynamic behavior in the turbulent orifice flow. The mathematical model is solved by using the fourth Runge-Kutta approach, and the cavitation bubble growth, collapse, and rebound process are described. With the temperature, pressure, and number of water molecules obtained by using the mathematical model as the input parameters, the productions of hydroxyl radicals with high oxidation under different conditions are calculated and the effecting parameters are analyzed.
TAO Yuequn
,
CAI Jun
,
LIU Bin
,
HUAI Xiulan
. Bubble dynamic analysis and hydroxyl radical production calculation at bubble collapse in turbulence flow[J]. Journal of University of Chinese Academy of Sciences, 2017
, 34(2)
: 191
-197
.
DOI: 10.7523/j.issn.2095-6134.2017.02.011
[1] Gogate P R. Cavitation:an auxiliary technique in waste water treatment schemes[J]. Advances in Environmental Research, 2002, 6(3):335-358.
[2] Eilers R. Hydrodynamic cavitation oxidation destroys organics[EB/OL]//EPA Groundwater Currents. (1994-03)[2016-05-20].http://clu-in.org/download/newsltrs/gwc0394.pdf.
[3] Gogate P R, Pandit A B. A review and assessment of hydrodynamic cavitation as a technology for the future[J]. Ultrasonics Sonochemistry, 2005, 12(1/2):21-27.
[4] 蔡军, 淮秀兰, 闫润生, 等. 湍流作用下水力空化气泡内温度演变的动力学分析[J]. 科学通报, 2011, 56(12):947-955.
[5] 蔡军, 淮秀兰,李勋锋. 湍流作用下可压缩液体中空化泡的动力学特性[J]. 科学通报, 2010, 55(10):857-866.
[6] Didenko Y T, Suslick K S. The energy efficiency of formation of photons, radicals and ions during single-bubble cavitation[J]. Nature, 2002, 418(6896):394-397.
[7] Storey B D, Szeri A J. Water vapour, sonoluminescence and sonochemistry[J]. Proceedings of the Royal Society A, 2000, 456(1999):1685-1709.
[8] Gogate P R. Treatment of wastewater streams containing phenolic compounds using hybrid techniques based on cavitation:a review of the current status and the way forward[J]. Ultrasonics Sonochemistry, 2008, 15(1):1-15.
[9] Wang J A, Wang X K, Guo P Q, et al. Degradation of reactive brilliant red K-2BP in aqueous solution using swirling jet-induced cavitation combined with H2O2[J]. Ultrasonics Sonochemistry, 2011, 18(2):494-500.
[10] Saharan V K, Pandit A B, Kumar P S, et al. Hydrodynamic cavitation as an advanced oxidation technique for the degradation of acid red 88 Dye[J]. Industrial & Engineering Chemistry Research, 2011, 51(4):1981-1989.
[11] Saharan V K, Rizwani M A, Malani A A, et al. Effect of geometry of hydrodynamically cavitating device on degradation of orange-G[J]. Ultrasonics Sonochemistry, 2013, 20(1):345-353.
[12] Cussler E L. Diffusion:mass transfer in fluid systems[M]. Cambridge:Cambridge University Press, 2009.
[13] Hirschfelder J O, Curtiss C F, Bird R B, et al. Molecular theory of gases and liquids[M]. New York:Wiley, 1954.
[14] Yasui K, Tuziuti T, Sivakumar M, et al., Theoretical study of single-bubble sonochemistry[J]. The Journal of Chemical Physics, 2005, 122(22):224706.
[15] Cai J, Huai X L, Li X F. Dynamic behaviors of cavitation bubble for the steady cavitating flow[J]. Journal of Thermal Science, 2009, 18(4):338-344.
