Browse > Article
http://dx.doi.org/10.7837/kosomes.2014.20.2.241

Flow Characteristics around Underwater Triangular Structure with Different Inclination  

Choe, Sang-Bom (Training Ship, Mokpo National Maritime University)
Cho, Dae-Hwan (Division of Marine Engineering System, Mokpo National Maritime University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.20, no.2, 2014 , pp. 241-246 More about this Journal
Abstract
The purpose of this study is to investigate the flow characteristics around underwater triangular structure with various inclination and Reynolds number. A flow fields around the triangular structure model were measured by visualization method and PIV in the circulating water channel. The result of the experiment is where the triangular structure that has a inclination of $45^{\circ}$ and the reynolds number at $Re=2.9{\times}10^3$ showed rising velocity component to 2.7 times of the structure height. When the reynolds number is steady and when the inclination is greater the descending velocity component of the structure's rears current form is greatly shown and for the areas where it's more than y/hs=1.75 has a change in the angle of inclination but it doesn't give a great effect to it.
Keywords
Triangular structure; inclination; Flow visualization; Particle image velocimetry; Circulating water channel;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Han, W. H. and D. H. Cho(2008), "A Study on the Flow Characteristics around Underwater Triangular Structure", Journal of the Korean Society of Marine Environment & Safety, Vol. 14, No. 1, pp. 21-27.   과학기술학회마을
2 Cho, K. D., D. S. Kim and S. E. Park(2003), "Characteristics of Oceanographic Conditions in an Area Suitable for the Construction of Artificial Upwelling", Korean Journal of Fisheries and Aquatic Sciences, Vol. 36, No. 2, pp. 187-192.   과학기술학회마을   DOI
3 Jeon, Y. H, G. S. Lee, Y. K Yoon and C. R. Ryu(2007), "An Experimental Study for the Falling Test and Upwelling Effect of the Artificial Upwelling Structur", Journal of Ocean Engineering and Technology Vol. 21, No. 4, pp. 21-27.
4 Kim, D. S. and S. B. Hwang(2006a), The Variation of Current by the Building of Artificial Upwelling Structure (I), Journal of the Korean Society of Marine Environment & Safety, Vol. 12, No. 4, pp. 301-306.   과학기술학회마을
5 Kim, D. S. and S. B. Hwang(2006b), "Characteristics of Oceanographic Environment in a Sea Area for the Building of Artificial Upwelling Structure", Jouranl of the Korean Society of Marine Environment & Safety, Vol. 12, No. 1, pp. 1-8.   과학기술학회마을
6 Kim, S. H., S. W. Bae and D. S. Kim(2009), "Numerical Experiments for Upwelling Phenomenon Caused by Artificial Seamoun", Korean Journal of Fisheries and Aquatic Sciences, Vol. 36, No. 2, pp. 37-41.
7 Kim, W. G.(2006), A Study on Characteristics of the Three-Dimensional Flow around Submerged Structures, Graduate School Pukyong University, p. 54.
8 Ryther, J. H.(1969), Photosynthesis and Fish Production in the Sea, The production of organic matter and its conversation to higher forms of life vary throughout the world ocean, Science 166, pp. 72-76.   DOI
9 Yanagi, T. and M. Nakajima(1991), "Change of oceanic condition by the man-made structure for upwelling", Marine pollution bulletin, Macmillan Journals, 23, pp. 131-135.   DOI   ScienceOn