Contact
    Start Publications Design and fabrication of fluid flow characteristic ...
    ←  Publication Finder
    Attension

    Design and fabrication of fluid flow characteristic controllable trawl door using a trailing edge flap

    Year: 2019

    Journal: J. Mech. Sci. Technol., Volume 33, DEC, page 5623–5630

    Authors: Lee, Jiwon; Yoon, Hongkeun; Park, Yeonju; Choi, Kyusuk; Lee, Chunwoo; Shim, Dosik; Park, Sanghu

    Organizations: National Research Foundation of Korea (NRF) - Ministry of Education, Korea [2017R1 D1A1A09000923]; "Human Resources Program in Energy Technology" of the Korea Institute of Energy Technology Evaluation and Planning (KETEP); Ministry of Trade, Industry, & Energy, Republic of Korea [20184010201660]

    Country: Kagoshima, JAPAN

    Keywords: Circulating water channel; Hydrophobic surface; Numerical analysis; Trailing edge flap; Trawl door

    A novel trawl door with a trailing edge flap and a trawl door with a hydrophobic surface are proposed to improve the hydrodynamic characteristics of trawl doors. In the former, the flap angle was designed to accommodate rapid changes in water flow velocity, increase the lift force under low-speed conditions, and decrease drag force under high-speed conditions. An evaluation of the hydrodynamic characteristics at different flap angles was conducted through numerical analyses and experimentation. The design of the trawl door with coated hydrophobic surface aims to reduce flow resistance. Both trawl door designs were validated in a circulating water channel ex-periment. At these angles of the trailing edge flap, a 31 % decrement in drag force was observed in the circulating water channel experi-ment, and a 21.3 % decrement in flow resistance was observed when the surface of the trawl door was coated with hydrophobic surface materials.
    View publication