Improvement of Tidal Circulation in a Closed Bay using Variation of Bottom Roughness

해저조도 변화를 이용한 폐쇄성 만의 해수순환 개선

  • BOO SUNG YOUN (Department. of Naval Architecture, Korea Naval Academy)
  • 부성윤 (해군사관학교 조선공학과)
  • Published : 2005.02.01

Abstract

Tidal circulation in a closed bay using a variation of bottom roughness was investigated through the numerical experiments based on a finite difference multi-level model. Various distributions of bottom roughness in the bay were implemented to determine their effects. It hadbeen determined that residual currents can be generated from the differences of the bottom roughness between streaming and reverse flow directions. The magnitude of residual currents and volume flow rate increase when the relative ratio of bottom roughness between streaming and reverse flow directions increase. Circulation in the closed bay is also improved by the employment of the change of bottom roughness.

Keywords

References

  1. 부성윤 (1999). '부유식 해수유동 제어구조물의 유통제어 특성에 관한 연구', 한국해양공학회지, 제13권 제2호, pp 325-341
  2. 부성윤 (1999). '해수유동과 구조물의 상호작용해석: TIDE3dTS User's Manual', 최종 연구보고서, 한국기계연구원, 선박해양 공학연구센터
  3. 양찬규, 홍기용 (1998). '도류제에 의한 항만내 조류제어 연구' 한국해양공학회지, 제11권/ 제4호 pp 141-151
  4. 정태영 (1998). '해양공간이용 대형 복합플랜트 개발', 과학기술부 1단계 최종 연구보고서, 번호 98-NQ-12-01-A-01, UCN2080-660, 한국기계연구원
  5. 조규남 (1999). '부유식 초대형 해상구조물 기획연구' 해양수산부 연구보고서, 홍익대학교 해양시스템 연구센터
  6. Asaeda, T., Son, P.H. and Armfield, S. (1994). 'Vortex Convection Produced by V-Shaped Dihedral Obstruction,' J. Hydraulic Engineering, Vol 120, No 11, pp 1274-1292 https://doi.org/10.1061/(ASCE)0733-9429(1994)120:11(1274)
  7. Bazilevskii, V., Wongwises, S., Kalinichenko, V.A and Sekerzh-Zenkovich, S.Y. (2001). 'Experimental Study of the Bottom Structure Effect on the Damping of Standing Surface Waves in a Rectangular Vessel', Fluid Dynamics, Vol 36, No 4, pp 652-657 https://doi.org/10.1023/A:1012306100426
  8. Inoue, Y., Tabeta, S., Arai, M and Kazawa, K (1994). 'Feasibility Design of a Floating Airport and Investigation into its Effects on the Environment', Journal of the Society of Naval Architects of Japan, Vol 176, pp 75-81
  9. Tabeta, S. and Fusino, M (1994). 'Numerical Simulation of Currents and Density Variation in Tokyo Bay by means of Multi-Level Model', Journal of the Society of Naval Architects of Japan, Vol 176, pp 67-74
  10. Yano, S., Komatsu, T., Kohashi, N., Fujita, K and Gug, S.-G. (1996). 'On the Control of Tidal residual Current in a Bay by Bottom Roughness with Directional Characteristics', The 1st Symposium on Environmental Fluid, pp 65-71