Browse > Article
http://dx.doi.org/10.3795/KSME-B.2014.38.10.865

Development of Venturi System for Microbubble Generation  

Yun, Jeong Eui (Dept. of Mechatronics Engineering, Kangwon Nat'l Univ.)
Kim, Joo Ho (Dept. of Mechanical & Automation engineering, Kangwon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.10, 2014 , pp. 865-871 More about this Journal
Abstract
This study was conducted with the aim of developing a venturi-type air supply system for a microbubble generator. In order to determine the influence of the varying geometry of the venturi tube on the flow characteristics, a computational fluid dynamics (CFD) simulation was performed using the commercial CFD software ANSYS CFX-15. Furthermore, in order to elucidate the effects of variation in major design dimensions such as the air supply hole size, position of holes, and number of holes on the air supply characteristics, two-phase multiflow CFD analysis was performed. The analysis results showed that the starting point of expansion on the venturi tube with 0.75 is the best hole position and that the air supply hole size and the number of holes are linearly proportional to the amount of air.
Keywords
Cavitation; CFD; Micro Air Bubble; Venturi Tube;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Yang, H. C. and Park, S. K., 2011, "Effect of Salinity on Dissolved Oxygen Characteristics in an Ejector-Aerator," Journal of the Korean Society of Marine Engineering, Vol. 35, No. 5, pp.640-646.   과학기술학회마을   DOI   ScienceOn
2 Park, S. K. and Yang, H. C., 2013, "Mixed Flow Characteristics of Aeration Process for Recirculation Aquaculture System Using Ejector," Trans. Korean Soc. Mech. Eng. B, Vol. 37, No. 9, pp. 847-854.   과학기술학회마을   DOI   ScienceOn
3 Terasaka, K., Hirabayashi, A., Nishino, T., Fujioka, S. and Kobayashi, D., 2011, "Development of Microbubble Aerator for Waste Water Treatment Using Aerobic Activated Sludge," Chemical Engineering Science, Vol. 66, pp.3172-3179.   DOI   ScienceOn
4 Akimi, S., Tomohiko, I., Toshihiko, Y. and Zensaku, K., 2003, "Laminarization of Micro-Bubble Containing Milky Bubbly Flow in a Pipe," 3rd Eropean-Japanese Flow Group Meering.
5 Yanqi, S. and Wenquan, N., "Simulating the Effects of Structural Parameters on the Hydraulic Performances of Venturi Tube," Modeling and Simulation in Engineering, Vol. 2012, Article ID458368, 2012, 7 pages.
6 Baylar, A., Ozkan, F. and Unsal, M., 2010, "Effects of Air Inlet Hole Diameter of Venturi Tube on Air Injection Rate," KSCE Journal of Civil Engineering, Vol. 14, No. 4, pp.489-492.   DOI   ScienceOn
7 Kim, H. D., Lee, D. Y., Kim, Y. K., Jeong, W. T., Ahn, J. H. and Kim, K. C., 2011, "Numerical Simulation and Experimental Study on an Ejector System for VOC Recovery," Journal of Korean Society of Visualization, Vol. 9, No. 2, pp.54-60.   과학기술학회마을   DOI   ScienceOn
8 Sadatomi, M., Kawahara, A., Matsuura, H. and Shikatani, S., 2012, "Micro-bubble Generation Rate and Bubble Dissolution Rate into Water by a Simple Multi-fluid Mixer with Orifice and Porous Tube," Experimental Thermal and Fluid Science, Vol. 41, pp.23-30.   DOI   ScienceOn