KOREASCHOLAR

수치해석을 이용한 해저 망간단괴 집광기의 이동방향에 따른 유동장 특성 분석 Numerical Analysis of Seawater Flow Field Characteristics for Moving Direction of the Manganese Nodule Mining Device

채용배, 임성진, 이상호
  • 언어KOR
  • URLhttp://db.koreascholar.com/Article/Detail/364147
PDF 원문보기
한국기계기술학회지 (韓國機械技術學會誌)
제20권 제5호 (2018.10)
pp.630-637
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

Numerical analysis has been carried out to investigate seawater flow field characteristics with various current directions near the manganese nodule mining device. Seawater flow near the collecting device is largely influenced by the sea current direction, especially along the downstream of the rear system. Predicted flow velocity distributions are analyzed with turbulent kinetic energy and drag force. There is big flow field variation when the direction angle between the mining device and seawater current flow approaches to 30°~ 120°, and flow velocity along the rear region of 60° becomes faster than 180°. Averaged turbulent kinetic energy at 180° also becomes low, about 57% higher at 60°. These results from the study can be applicable to the optimum design of manganese nodule collecting system in the deep seawater flow.

키워드
Manganese nodule망간단괴Mining device집광기Numerical analysis수치해석Flow field character- istics유동장 특성Seawater해수
목차
ABSTRACT
 1. 서론
 2. 수치 해석 방법
  2.1 지배 방정식
  2.2 해석 모델
  2.3 물성치 및 경계조건 설정
 3. 결과 및 고찰
  3.1 집광기주변에서의 해수유속 변화
  3.2 집광기 주변의 유속 및 난류운동에너지 분포 특성
  3.3 집광기 후류영역에서의 난류운동에너지 변화 특성
  3.4 난류운동에너지와 항력변화
 4. 결론
 후기
 References
저자
  • 채용배(Graduate school in Department of Mechanical Engineering at Wonkwang University) | Yong-Bae Chae
  • 임성진(Graduate school in Department of Mechanical Engineering at Wonkwang University) | Sung-Jin Lim
  • 이상호(Department of Mechanical Engineering at Wonkwang University) | Sang-Ho Lee Corresponding Author