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- Title
Numerical Analysis of Deep Seawater Flow Disturbance Characteristics Near the Manganese Nodule Mining Device.
- Authors
Sung-Jin Lim; Yong-Bae Chae; Shin-Taek Jeong; Hong-Yeon Cho; Sang-Ho Lee
- 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.
- Subjects
SEAWATER; HYDRAULICS; MANGANESE nodules; FLUID dynamic measurements; FLUID dynamics
- Publication
Ocean & Polar Research, 2014, Vol 36, Issue 4, p475
- ISSN
1598-141X
- Publication type
Article
- DOI
10.4217/OPR.2014.36.4.475