An experimental study of interceptor’s effectiveness on hydrodynamic performance of high-speed planing crafts

• Autorzy: Karimi M. H. , Seif M. S. , Abbaspoor M.
• Języki publikacji: EN

Abstrakty

EN

Trim control mechanisms such as interceptors and trim flaps have been widely used in recent years in highspeed crafts for ride and trim control. In spite of their extensive application, a few studies investigating the impact of interceptors on planing craft performance, have been published. In the present study, the impact of interceptors on planing crafts hydrodynamic quality is investigated through application of an experimental method. Two scaled-down models of high-speed planing mono-hull and catamaran are tested with and without interceptors in calm water at different heights of the interceptors to investigate the effect of interceptors on drag reduction of the models. The first one is a scaled-down model of 11 m planning mono-hull boat and the test was conducted at the towing tank of Sharif University of Technology, Iran. The second one is a scaled-down model of 18 m planing catamaran boat and the test was conducted at the towing tank of Krylov Shipbuilding Research Institute (KSRI), Russia. The experimental results show a remarkable drag reduction of up to 15% for mono-hull model and up to 12% for catamaran model over the wide speed range of the models.

Słowa kluczowe

EN

interceptors; drag reduction; hydrodynamic quality; planing catamaran; mono-hull

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2013
• Tom: nr 2
• Strony: 21--29
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Karimi M. H.

• Center of Excellence in Hydrodynamics and Dynamics of Marine Vehicles, Department of Mechanical Engineering, Sharif University of Technology, IRAN

autor

Seif M. S.

• Center of Excellence in Hydrodynamics and Dynamics of Marine Vehicles, Department of Mechanical Engineering, Sharif University of Technology, IRAN

autor

Abbaspoor M.

• Center of Excellence in Hydrodynamics and Dynamics of Marine Vehicles, Department of Mechanical Engineering, Sharif University of Technology, IRAN

Bibliografia

• 1. Wang C.T.: Wedge Effect On Planing Hulls, Journal of Hydronautics, Vol. 14, No.4, (1980).
• 2. Bannikov Yu.M., and Luckashevsky V.A.: Experimental Investigation Of Lift And Drag Of Planing Plates, TSAGI Report, Vol. 7, No.1, Moscow, Russia, (1976).
• 3. Bannikova T.A., Bannikov Yu.M., Luckashevsky V.A., and Zeitlin M.Yu.: The Investigation Of The Hydrodynamic Characteristics Of The Planing Surface With a Spoiler On The Trailing Edge, TSAGI Report No. 1908, pp.1÷22, Moscow, Russia, (1978).
• 4. Savitsky D.: Hydrodynamic Design Of Planing Hulls, Journal of Marine Technology, Vol. 1, pp.71÷95, (1964).
• 5. Brown P.W.: An Experimental And Theoretical Study Of Planing Surfaces With Trim Flaps, Stevens Institute of Technology, Davidson Laboratory Report No. 1463, (1971).
• 6. Savitsky D., and Brown P.W.: Procedures For Hydrodynamic Evaluation Of Planing Hulls In Smooth and Rough Water, Journal of Marine Technology, Vol.13, No.4, pp. 381÷400, (1976).
• 7. Tsai J., and Huang J.K.: Study On The Effect Of Interceptor On High Speed Craft, Journal of The Society of Naval Architects and Marine Engineering, Vol.22, No. 2, pp. 95÷ 101, (2003).
• 8. Tsai J., Hwang J., and Chou S.: Study On The Compound Effects Of Interceptor With Stern Flap For Two Fast Monohulls With Transom Stern, Proceedings of the 7th International Conference on Fast Sea Transportation, Fast 2003, Ischia, Italy, pp.23÷28, (2003).
• 9. Krylov Shipbuilding Research Institute (KSRI).: a Radically New System For High Speed Ship Motion Stabilization And Speed Increase Based on Automatically Controlled Interceptors, KSRI Report, St.Petersburg, Russia, (2002).
• 10. Krylov Shipbuilding Research Institute (KSRI).: Evaluation of Effectiveness of Automatically Controlled Interceptors for Decrease of Oscillations of High Speed Catamaran, KSRI Report, St.Petersburg, Russia, (2004).
• 11. Dawson D., and Blount D.: Trim Control, Professional Boat builder, No. 75, (2002).
• 12. Karimi M.H.: Hydrodynamic Quality Improvement Techniques For High Speed Planning Crafts, Proceeding of 7th Conference on Marine Industries, Tehran, Iran, (2006).
• 13. Brizzolara S.: Hydrodynamic Analysis Of Interceptors With CFD Methods, Proceedings of The 7th International Conference on Fast Sea Transportation, Fast 2003, Ischia, Italy, pp.49÷56, (2003).
• 14. Molini A., Brizzolara S.: Hydrodynamics Of Interceptors: a Fundamental Study, Proceeding of the International Conference on Marine Research and Transportation, ICMRT 2005, Vol.1, Ischia, Italy, (2005).
• 15. D Villa., Brizzolara S.: a Systematic CFD Analysis Of Flaps/ Interceptors Hydrodynamic Performance, Proceeding of 10th International Conference on Fast Sea Transportation, Fast 2009, Athens, Greece, pp.1032÷1038, (2009).
• 16. Hansvic T., and Steen S.: Use Of Interceptors And Stepped Hull To Improve Performance Of High Speed Planing Catamaran, Proceeding of International Conference on High-Speed Craft- ACV’s, WIG’s and Hydrofoils, London, UK, (2006).
• 17. Steen S.: Experimental Investigation Of Interceptor Performance, Proceeding of 9th International Conference on Fast Sea Transportation, Fast 2007, Shanghi, China, pp. 237÷244, (2007).
• 18. Allema J.: Intercepting The Interceptors, MARIN Report No. 86, pp.6÷7, (2005).
• 19. Fridman G. M., Rozhdestvensky K.V., and Shlyakhtenko A.: Theory And Practice Of Application Of The Interceptors On High Speed Ships, Proceeding of 9th International Conference on Fast Sea Transportation, Fast 2007, Shanghi, China, pp. 214÷236, (2007).
• 20. Syamsundar S., and Datla R.: Performance Prediction Of High Speed Planing Craft With Interceptors Using a Variation Of The Savitsky Method, Proceedings of the first Chesapeake Power Boat Symposium, Annapolis, Maryland, USA, (2008).
• 21. Day A.H., and Cooper C.: An Experimental Study Of Interceptors For Drag Reduction On High Performance Sailing Yachts, Ocean Engineering, Vol. 38, pp.983÷994, (2011).
• 22. Schlichting H.: Boundary Layer Theory, seventh Ed. McGraw- Hill Inc- New York, (1979).
• 23. ITTC 2002.: Model Manufacturing Ship Models, 23rd International Towing Tank Conference, (7.5-01-01-01), pp.1÷6, Revision-01, (2002).
• 24. ITTC 2002.: Testing and Extrapolation Methods for High Speed Marine Vehicles Resistance Test, 23rd International Towing Tank Conference, (7.5-02-05-01), pp.1÷18, Revision-01, (2002).
• 25. Interceptor Guide, retrieved from http://www.humphree.com/, March 15, 2011.