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This study is constructed to investigate the sloshing effect on the motions of a two-dimensional rectangular cylinder experimentally and numerically. The modes of motion under consideration are sway and roll, and also experimental cases are divided by two categories; 1-DoF roll motion and 2-DoF motion (Coupling sway and roll). It is found that the sway response is considerably affected by the motion of the fluid, particularly near the sloshing natural frequency, while the roll response changes comparatively small. The dominant mode of motion is analyzed for 2-DoF experiments as well. The measured data for 1-DoF motions is compared with numerical results obtained by the Multi-modal approach. The numerical schemes vary in detail with the number of dominant sloshing modes; i.e. there is a single dominant mode for the Single-dominant method, while the Model 2 method assumes that the first two modes are superior. For the roll motion, numerical results obtained by the two different methods are relatively in good agreement with the experiments, and these two results are similar in most wave frequency range. However, the discrepancies are apparent where the fluid motion is not governed by a single mode. But both of numerical methods over-predict the motion at the vicinity of the sloshing natural frequency. In order to correct the discrepancy, the modal damping needs to be investigated more precisely. Furthermore, another multi-modal approach, such as the Boussinesq-type method, seems to be required in the region of the intermediate liquid.

권호기사

권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
2차원 사각형 주상체의 횡동요 및 2자유도 운동에 미치는 슬로싱의 영향 김윤호, 성홍근, 조석규, 최항순 pp.69-78

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선박의 트림 자세가 저항 성능에 미치는 영향 박동우, 이상봉, 정성섭, 서흥원, 권재웅 pp.88-94

수치계산에 의한 활주선의 항주 자세 및 저항 추정 오광호, 유재훈 pp.95-103

부식과 도장을 고려한 선체잔여수명예측시스템 설계 박성환, 이한민 pp.104-110

상하동요하는 2차원 원주의 고유진동수 : 주파수 영역 해석 이동엽, 이승준 pp.111-119

기체-액체 밀도차에 대한 슬로싱 충격압력의 실험적 고찰 안양준, 김상엽, 김경환, 이상우, 김용환 pp.120-128

참고문헌 (12건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 Choi, Y.R. & Choi, H.S., 1991. Transient Surge Motion of a Moored Ship in Random Waves. International Journal of Offshore & Polar Engineering, 1(2), pp.239-241. 미소장
2 Multidimensional modal analysis of nonlinear sloshing in a rectangular tank with finite water depth 네이버 미소장
3 An adaptive multimodal approach to nonlinear sloshing in a rectangular tank 네이버 미소장
4 Faltinsen, O.M. & Timokha, A.N., 2009. Sloshing. Cambridge University Press: Cambridge. 미소장
5 Sloshing frequencies 네이버 미소장
6 Energy dissipation in standing waves in rectangular basins 네이버 미소장
7 Kim, Y.H. et al., 2012. An experimental study on the sloshing effect to the rectangular cylinder's 1-DoF & 2-DoF motions. The Conference of the Korean Society of Ocean Engineers, Daegu, Republic of Korea, 31 May - 1 June 2012. 미소장
8 Lee, D.Y. Kim, Y.H. & Choi, H.S., 2010. A Study on the Sloshing Effect on the Motion of 2D Rectangular Cylinders in Regular Waves. The Conference of Naval Architecture of Korea, Changwon, Republic of Korea, 21-22 October 2010. 미소장
9 Lee, D.Y. Cho, G.N. Kim, Y.H. & Choi, H.S., 2011. The Effect of Sloshing on the Sway Motions of 2D Rectangular Cylinders in Regular Waves. Journal of Marine Science and Ocean Engineers, 16(3), pp.323-330. 미소장
10 Newman, J.N., 1977. Marine Hydrodynamics. The MIT Press: Cambridge. 미소장
11 Ogilvie, F.T., 1964. Recent progress toward the understanding and prediction of ship motions. 5th Symposium on Naval Hydrodynamics, Bergen, Norway, 10-12 September 1964. 미소장
12 Coupling of Sloshing and Ship Motions 네이버 미소장