Journal of Marine Science and Technology

, Volume 14, Issue 3, pp 310–321 | Cite as

Design practice for the stern hull form of a twin-skeg ship

  • Dong-Woo ParkEmail author
  • Ho-Hwan Chun
Original Article


Hydrodynamic standards have been derived for the improvement of propulsive performance of twin-skeg hull forms. Three important physical observations were used in the optimization of design practice for the stern hull form of twin-skeg ships: limiting streamline pattern on the inner and outer skeg surface of a stern skeg, the balance between the flow intensity over the inner and outer skeg surface of a stern skeg and nominal wake distribution in the propeller plane. Numerical calculations and model tests have been compared to validate a CFD code used in the current work. Based on the stern flow analysis for the evaluation of self-propulsion performance, effects of stern skeg arrangement on the propulsion efficiency, i.e. the distance between skegs and the angle of the skeg with respect to shaft centerline, were intensively investigated. An optimized hull form design for a twin-skeg ship was developed using the design practice derived in this work.


Twin-skeg ship Hydrodynamic standards Stern flow Optimized hull form CFD Model test at towing tank 


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Copyright information

© JASNAOE 2009

Authors and Affiliations

  1. 1.Maritime Research Institute, Hyundai Heavy Industries Co.UlsanSouth Korea
  2. 2.Department of Naval Architecture and Ocean EngineeringPusan National UniversityBusanSouth Korea

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