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http://dx.doi.org/10.5695/JKISE.2011.44.1.032

Surface Treatment Effect on the Toilet by Numerical Modeling and High Speed CCD Camera  

Roh, Ji-Hyun (Department of Materials Science and Engineering and Plasma Materials Research Center, Kunsan National University)
Do, Woo-Ri (Department of Materials Science and Engineering and Plasma Materials Research Center, Kunsan National University)
Yang, Won-Kyun (Department of Materials Science and Engineering and Plasma Materials Research Center, Kunsan National University)
Joo, Jung-Hoon (Department of Materials Science and Engineering and Plasma Materials Research Center, Kunsan National University)
Publication Information
Journal of the Korean institute of surface engineering / v.44, no.1, 2011 , pp. 32-37 More about this Journal
Abstract
Numerical analysis is done to investigate the effect of surface treatment of a toilet on the cleanness. The surface treatment using plasma for the super-hydrophobic surface expects the self-cleaning effect of the toilet seat cover for preventing the droplets with a great quantity of bacteria during the toilet flushing after evacuation. In this study, the fluid analysis in the toilet during the flushing was performed by an ultrahigh-speed CCD camera with 1,000 frame/sec and the numerical modeling. And the spattering phenomenon from the toilet surface during urine was analyzed quantitatively by CFD-ACE+ with a free surface model and a mixed model of two fluids. If the surface tension of the toilet surface is weak, many urine droplets after collision bounded in spite of considering the gravity. The turbulence generated by the change of angle and velocity of urine and the variation of the collision phenomenon from toilet surface were modeled numerically.
Keywords
Numerical modeling; Surface treatment; Toilet; Fluid simulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 C. Wang, C. Piao, X. Zhai, F. N. Hickman, J. Li, Powder Tech., 200 (2010) 84.   DOI
2 D. Y. Uhm, J. J. Na, Kor. Vac. Soc. 36th Conference, 2009. Feb., Program, p.234.
3 C. W. Hirt, B. D. Nichols, J. Comp. Phys., 39 (1981) 201.   DOI   ScienceOn
4 D. B. Kothe, W. J. Rider, S. J. Mosso, J. S. Brock, AIAA paper 96-0859 (1996).
5 http://sizekorea.kats.go.kr/01_sizekorea/outline.asp?OlapCode=SIZU0101
6 R. Chen, W. Tian, G. H. Su, S. Qiu, Y. Ishiwatari, Y. Lka, Nucl. Eng. and Des., 240 (2010) 3830.   DOI
7 Y. Alhendal, A. Turan, W. I. A. Aly, Proc. Comp. Sci., 1 (2010) 673.   DOI