Utilization of Wave Energy to Improve Propulsive and Seekeeping Performances of a Ship in Rough Weather

Hiroshi Isshiki


According to IMO’s Energy Efficiency Design Index (EEDI), the CO2 emission of a ship must be cut 30% in 2025. This would invite serious speed drop of a ship in rough seas and deteriorate the safety of a ship drastically. The present paper discusses to utilize wave energies abundant in rough seas to overcome the danger. A very small hydrofoil fixed to the ship bow could reduce the ship motion and generate thrust enough to counter the speed drop mentioned above and make a ship much safer.


EEDI, Hydrofoil, Wave energy utilization, Reduction of speed drop, Riding comfort increase

Full Text:



H. Yasukawa, Special lecture at No.1 meeting of SPRC, The Japan Society of Naval Architects and Engineers (June/2015) in Japanese

Class NK, Technical topics (EEDI and SEEMP) in Japanese

Motor Ship, Meeting the EEDI challenge, (14/July/2015)

H. Yasukawa, S. Ikezoe & E. Koike, Improvement of service performance of a Ship by Horizontal Fins, read at Meeting of The Japan Society of Naval Architects and Engineers (2013) in Japanese

M. A. Abkowitz, The effect of antipitching fins on ship motions, Transactions of the Society of Naval Architects and Maribe Engineers, 67 (1959) 210-252

M. Matsui, Y. Nakado, M. Mokunaka, M. Takagi, On activated anti-pitching fins, Journal of SNAJ, 119 (1966) 38-49

T. Y. Wu, Extraction of flow energy by a wing oscillating in waves, J. Spacecr. Rockets, xx (1972) 66-78

Wave Energy for propelling Craft - Nothing New -, The Naval Architect, (Nov/1973), pp.239.

E. Jakobsen, The foilpropeller, wave power for propulsion. The Second International symposium on Wave & Tidal Energy, BHRA Fluid Engineering (1981) 363-368

H. Isshiki, M. Murakalni, A Theory of Wave devouring propulsion (3rd report) - An experimental verification of thrust generation by a passive-type hydrofoil propulsor -, Journal of The Society of Naval Architects of Japan, No.154 (1983) 125- 135.

H. Isshiki, M. Murakami, Y. Terao, Utilization of wave energy into propulsion of ships - Wave devouring propulsion -. Fifteenth Symposium on Naval Hydrodynamics held at Hamburg, (1984).

M. Bessho, Y. Kyozuka, On the ship motion reduction by anti-pitching fins in head seas, Fifteenth Symposium on Naval Hydrodynamics held at Hamburg, (Sept/1984), pp.l09-118.

H. Isshiki, M. Murakami, A theory of wave devouring propulsion (4th report) - A Comparison between theory and experiment in case of a passive-type hydrofoil propulsor -, Journal of The Society of Naval Architects of Japan, No.156, (1984), pp.102-ll4.

M. Nagahama, M. Murakami, H. Isshiki, Effects of a foil attached to a ship in waves, The Hitachi Zosen Technical Review, Vol.47, No.3, 4, (1986), pp.38-43.

S. Naito, H. Isshiki K. Fujimoto, Thrust Generation of a Fin Attached to a Ship, Journal of The Kansai Society of Naval Architects of Japan, No.202, (Sept/1986), pp.23-28.

H. Isshiki, M. Murakami,Y. Terao, Thrust generation by a hydrofoil driven by waves - A basic aspect of wave ship propulsion, 5th International Symposium & Exhibit on Offshore Mechanics and Arctic Engineering (OMAE) held at Tokyo, (Apr. 1986).

H. Isshiki, S. Naito, An application of wave energy - Thrust generation by a hydrofoil in waves-, "Current Practices and New Technology in Ocean Engineering" Symposium, ASME's Ocean Engineering Division held at New Orleans, (1986).

H. Isshiki, K. Hatta, Y. Terao, Research and development of oscillating hydrofoil propulsion utilizing wave energy, Bulletin of The Society of Naval Architects of Japan, N0.719, (May/1989), pp.18-26.

I. Watanabe, S. Ishida, An experiment of oscillating hydrowing in waves, Engineering Science, Fluid Dynamics, Symposium to Honor T. Y. Wu (1990) 331-340

H. Isshiki, Wave energy utilization into ship propulsion by fins attached to a ship, Proceedings of the Fourth (1994) International Offshore and Polar Engineering Conference, Osaka, Japan (Apr/1994) 508-521

S. Naito, H. isshiki, Effect of bow wings on ship propulsion and motions, Applied Mechanics Review, 58(4) (2005) 253-268

E. Bocknann, S. Steen, Experiments with actively pitch-controlled and spring-loaded oscillating foils, Applied Ocean Research, 48 (2014) 227-235


  • There are currently no refbacks.

Copyright (c)