文章基本信息

标题：Numerical Study of B-Screw Ship Propeller Performance: Effect of Tubercle Leading Edge
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作者：Mohammad Danil Arifin ; Frengki Mohamad Felayati
期刊名称：International Journal of Marine Engineering Innovation and Research
印刷版ISSN：2541-5972
电子版ISSN：2548-1479
出版年度：2021
卷号：6
期号：1
页码：16-23
语种：English
出版社：Institut Teknologi Sepuluh Nopember
摘要：various attempts to modify the ship's propeller have been made to improve performance as a propulsion component. This paper analyzes the effect of modification of the B-Series propeller by adopting a whale fin shape (Humpback Whale). Also, it analyzes the flow in the propeller before (standard) and after modification. Modifications are made to the leading edge, which is called the tubercle leading edge (TLE). It adds and subtracts sections with a wavelength of 0.2R and amplitude of 2.5% of the chord section length in the propeller leading edge. The numerical study is used using CFD on different J values (0.2, 0.4, and 0.6). It was found that the modification of TLE has a less significant effect on performance. Instead, it decreased at a low J value (0.2). Meanwhile, the largest decrease was at a high J value (0.6), namely up to 10.4% for thrust, 4.3% for torque, and 6.4% for efficiency. Whereas at J=0.4, the torque increases only 0.4%, and the torque and thrust decrease, although less significant. The flow analysis indicates that the shape of the TLE provides a decrease in pressure. However, on the positive side, this modification provides a reduction in noise on the propeller surface.
关键词：CFD;leading-edge;propeller;simulation;tubercle.