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An experimental investigation of interceptors for a high speed hull

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초록

Nowadays interceptors have been widely used in a vast range of high-speed crafts. In this study, the results of interceptor adeptness experiments made in Istanbul Technical University's Towing Tank are unveiled. The model was tested through three transverse locations of interceptors with six different deployment depths. For three locations, the interceptor was positioned transverse on the aft; close to chine, in the middle and close to the keel. The fourth interceptor was a full length of 13.00% LWL. The results show a significant drag reduction in benefits of 1.50%e11.30% for Fn 0.58e1.19 and the trim reduction was observed in between 1.60 and 4.70. Besides, one of the most significant conclusions indicates that the effect of the interceptor decreases from keel to chine for the same blade deployment heights so the blades should be controlled separately at least in three parts from keel to chine area, if operable.

Abstract

Nowadays interceptors have been widely used in a vast range of high-speed crafts. In this study, the results of interceptor adeptness experiments made in Istanbul Technical University's Towing Tank are unveiled. The model was tested through three transverse locations of interceptors with six different deployment depths. For three locations, the interceptor was positioned transverse on the aft; close to chine, in the middle and close to the keel. The fourth interceptor was a full length of 13.00% LWL. The results show a significant drag reduction in benefits of 1.50%e11.30% for Fn 0.58e1.19 and the trim reduction was observed in between 1.60 and 4.70. Besides, one of the most significant conclusions indicates that the effect of the interceptor decreases from keel to chine for the same blade deployment heights so the blades should be controlled separately at least in three parts from keel to chine area, if operable.

참고문헌 (16)

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  9. Mansoori, M., "Hydrodynamics of the interceptor on a 2-D flat plate by CFD and experiments", J. Hydrodyn., Ser. B, 6, pp.919~933 (2015)
  10. Mansoori, M., "The interceptor hydrodynamic analysis for controlling the porpoising instability in high speed crafts", Appl. Ocean Res, 57, pp.40~51 (2016)
  11. Mansoori, M., "Hydrodynamics of the interceptor analysis via both ultrareduced model test and dynamic computational fluid dynamics simulation", J. Offshore Mech. Arct. Eng, 139(2), pp.021101(1)~021101(15) (2017)
  12. Najafi, A., "RANS simulation of interceptor effect on hydrodynamic coefficients of longitudinal equations of motion of planing catamarans", J. Braz. Soc. Mech. Sci. Eng, 4, pp.1257~1275 (2015)
  13. Savitsky, D., "On the Subject of High-speed Monohulls", Greek Section of the Society of Naval Architects and Marine Engineers, ~ (2003)
  14. Talaat, W. M., "A CFD presentation and visualization for a new model that uses interceptors to harness hydro-energy at the wash of fast boats", Ocean. Eng, 130, pp.542~556 (2017)
  15. Tsai, J. F., "Study on the Compound Effects of Interceptor with Stern Flap for Two Fast Monohulls", Paper Presented at the Oceans'04. MTTS, 2004, pp.2, 1023~1028
  16. Wenjiang, W., "Model tests of effects of interceptor on resistance of a semi-planing ship", Chin. J Ship Res, 7(1), pp.18~22 (2012)

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