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Số người truy cập: 35,750,038

 NUMERICAL STUDIES ON AIR RESISTANCE REDUCTION METHODS FOR A LARGE CONTAINER SHIP WITH FULLY LOADED DECK-CONTAINERS IN OBLIQUE WINDS
Tác giả hoặc Nhóm tác giả: T. V. NGUYEN, N. SHIMIZU, A. KINUGAWA, Y. TAI, and Y. IKEDA
Nơi đăng: MARINE 2017 Computational Methods in Marine Engineering VII, 15-17 May 2017, Nantes, France; Số: xx;Từ->đến trang: 1040-1051;Năm: 2017
Lĩnh vực: Kỹ thuật; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
In this study, the aerodynamic characteristics of the complex air flows acting on a large container ship model are numerically investigated by using a commercial CFD code. The main target is to reduce the air resistance in oblique winds, especially at the small angle of wind directions. Some container side-covers with different size and location are developed to shut the gap flow, and a center wall is also applied. The numerical results show that the air resistance at 30degrees of wind direction can be reduced significantly up to 50%, 30% and 15% by full side-covers, front-half side-covers and lower front-half side-cover, respectively.
ABSTRACT
In this study, the aerodynamic characteristics of the complex air flows acting on a large container ship model are numerically investigated by using a commercial CFD code. The main target is to reduce the air resistance in oblique winds, especially at the small angle of wind directions. Some container side-covers with different size and location are developed to shut the gap flow, and a center wall is also applied. The numerical results show that the air resistance at 30degrees of wind direction can be reduced significantly up to 50%, 30% and 15% by full side-covers, front-half side-covers and lower front-half side-cover, respectively.
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