한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제35권5호
  • /
  • Pages.313-326
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  • 2021
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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Evaluation of Dynamic Characteristics for a Submerged Body with Large Angle of Attack Motion via CFD Analysis

  • Jeon, Myungjun (Department, of Eco-friendly Offshore Plant FEED Engineering, Changwon National University) ;
  • Mai, Thi Loan (Department, of Eco-friendly Offshore Plant FEED Engineering, Changwon National University) ;
  • Yoon, Hyeon Kyu (Department, of Naval Architecture & Marine Engineering, Changwon National University) ;
  • Ryu, Jaekwan (LIG Nex1 Unmanned Systems R&D Laboratory) ;
  • Lee, Wonhee (LIG Nex1 Unmanned Systems R&D Laboratory) ;
  • Ku, Pyungmo (LIG Nex1 Unmanned Systems R&D Laboratory)
  • 투고 : 2021.07.20
  • 심사 : 2021.08.02
  • 발행 : 2021.10.31
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초록

A submerged body with varied control inputs can execute large drift angles and large angles of attack, as well as basic control such as straight movement and turning. The objective of this study is to analyze the dynamic characteristics of a submerged body comprising six thrusters and six control planes, which is capable of a large drift angle and angle of attack motion. Virtual captive model tests via were analyzed via computational fluid dynamics (CFD) to determine the dynamic characteristics of the submerged body. A test matrix of virtual captive model tests specialized for large-angle motion was established. Based on this test matrix, virtual captive model tests were performed with a drift angle and angle of attack of approximately 30° and 90°, respectively. The characteristics of the hydrodynamic force acting on the horizontal and vertical surfaces of the submerged body were analyzed under the large-angle motion condition, and a model representing this hydrodynamic force was established. In addition, maneuvering simulation was performed to evaluate the standard maneuverability and dynamic characteristics of large-angle motion. Considering the shape characteristics of the submerged body, we attempt to verify the feasibility of the analysis results by analyzing the characteristics of the hydrodynamic force when the large-angle motion occurred.

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과제정보

This research was financially supported by the Institute of Civil Military Technology Cooperation, funded by the Defense Acquisition Program Administration and Korean government Ministry of Trade, Industry, and Energy.

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