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http://dx.doi.org/10.3744/SNAK.2007.44.3.228

Cavitating-Flow Characteristics around a Horn-Type Rudder  

Choi, Jung-Eun (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.)
Chung, Seak-Ho (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.)
Kim, Jung-Hun (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.)
Publication Information
Journal of the Society of Naval Architects of Korea / v.44, no.3, 2007 , pp. 228-237 More about this Journal
Abstract
The flow characteristics around a horn-type rudder behind an operating propeller of a high-speed large container carrier are studied through a numerical method in fully wetted and cavitating flow conditions. The computations are carried out in a small scale ratio of 10.00(gap space=5mm) to consider the gap effects. The Reynolds averaged Navier-Stokes equation for a mixed fluid and vapor transport equation applying cavitation model are solved. The axisymmetry body-force distribution technique is utilized to simulate the flow behind an operating propeller. The gap flow, the three-dimensional flow separation, and the cavitation are the flow characteristics of a horn-type rudder. The pattern of three-dimensional flow separation is analyzed utilizing a topological rule. The various cavity positions predicted by CFD were shown to be very similar to rudder erosion positions in real ship rudder. The effect of a preventing cavitation device, a horizontal guide plate, is also investigated.
Keywords
CFD; Horn-type rudder; Body-force distribution; Gap flow; Three-dimensional flow separation; Cavitation; Cavity-induced erosion; Horizontal guide plate;
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1 최정은, 정석호, 2006, '간극유동이 혼.타 성능에 미치는 영항에 대한 연구,' 대한조선학회 춘계학술대회 논문집, pp. 513-522
2 Lee, D.H. and Lee, H.G., 2004, 'Prediction of Rudder Cavitation Considering Propeller and Hull Effects,' The 4th Conference for New Ship and Marine Technology
3 김정중, 백광준, 이용철, 김형태, 2006. '선박 자항 상태 점성유동 해석법에 대한 연구,' 대한조선학회춘계학술대회 논문집, pp. 548-557
4 박제준, 최영복, 황윤식, 2004. '프로필러 효과에 의한 선박 주위의 점성 유동 특성에 관한 연구,' 대한조선학회 추계학술대회 논문집, pp. 583-588
5 FLUENT 6.2 User's Guide, 2005, Fluent Inc
6 백부근, 김경열, 안종우, 김용수, 김성표, 박제준, 2006, 'Semi-spade 타의 간극 캐비테이션에 대한 실험적 연구,' 대한조선학회 춘계학술대회 논문집, pp. 580-585
7 부경태, 홍준범, 백광준, 2005, 'CFD 를 이용한 자항 상태 시뮬레이션,' 대한조선학회 추계학술대회 논문집, pp. 599-604
8 최정은, 정석호, 2005, '2차원 날개 단면 주위의 캐비테이팅 유동 특성에 대한 연구,' 대한 조선학회 추계학술대회 논문집, pp. 119-130
9 GRIDGEN User Manual Version 15, 2003, Pointwise Inc
10 Choi, J.K. and Kinnas, S.A., 2001, 'Prediction of Non-Axisymmetric Effective Wake by a Three-Dimensional Euler Solver,' J. of Ship Research, Vol. 45, No. 1, pp. 13-33
11 Maskell, E.C., 1955, Flow Separation in Three-Dimensions, RAE Report Aero. 2565
12 Stern, F., Kim, H.T. and Chen, H.C., 1988, 'A Viscous-Flow Approach to the Computation of Propeller-Hull Interaction,' J. of Ship Research, Vol. 32, No. 4, pp. 246-262
13 Tobak, M. and Peake, D.J., 1982, 'Topology of Three-Dimensional Separated Flows,' Ann. Rev. Fluid Mech., Vol. 14, pp. 61-85   DOI   ScienceOn
14 Wang, K.C., 1972, 'Separation Patterns of Boundary Layer over an Inclined Body of Revolution,' AIAA Journal, Vol. 10, pp. 1044-1050   DOI