Numerical analysis of deep seawater flow disturbance characteristics near the manganese nodule mining device SCOPUS KCI

Title
Numerical analysis of deep seawater flow disturbance characteristics near the manganese nodule mining device
Author(s)
Lim, S.-J.; Chae, Y.-B.; Jeong, S.-T.; Cho, H.-Y.; Lee, S.-H.
KIOST Author(s)
Cho, Hong Yeon(조홍연)
Publication Year
2014
Abstract
Seawater flow characteristics around a manganese nodule mining device in deep sea were analyzed through numerical investigation. The mining device influences the seawater flow field with complicated velocity distributions, and they are largely dependent on the seawater flow speed, device moving speed, and injection velocity from the collecting part. The flow velocity and turbulent kinetic energy distributions are compared at several positions from the device rear, side, and top, and it is possible to predict the distance from which the mining device affects the seawater flow field through the variation of turbulent kinetic energy. With the operation of the collecting device the turbulent kinetic energy remarkably increases, and it gradually decreases along the seawater flow direction. Turbulent kinetic energy behind the mining system increases with the seawater flow velocity. The transient behavior of nodule particles, which are not collected, is also predicted. This study will be helpful in creating an optimal design for a manganese nodule collecting device that can operate efficiently and which is eco-friendly. © 2014, Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2945
DOI
10.4217/OPR.2014.36.4.475
Bibliographic Citation
Ocean and Polar Research, v.36, no.4, pp.475 - 485, 2014
Publisher
Korea Ocean Research and Development Institute
Subject
deep sea; environmental disturbance; flow velocity; kinetic energy; numerical model; seawater; turbulent flow; water flow
Keywords
Deep sea; Flow characteristics; Manganese nodule; Mining device; Numerical analysis
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

coastal numerical modeling,statistical modeling,uncertainty analysis,연안수치모델링,해양통계모델링,불확실성 분석

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