Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting
During the harvesting of polymetallic nodules on the seabed, the sediment plume due to disturbance on the seabed impacts the benthic ecosystem. A numerical simulation based on the SPH (smooth particle hydrodynamics) method is used to estimate the time and length scale of the plume impact near the se...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/11/1/10 |
| _version_ | 1827624442871676928 |
|---|---|
| author | Yuan Lin Zixin Weng Jin Guo Xingshuang Lin Nhan Phan-Thien Jian Zhang |
| author_facet | Yuan Lin Zixin Weng Jin Guo Xingshuang Lin Nhan Phan-Thien Jian Zhang |
| author_sort | Yuan Lin |
| collection | DOAJ |
| description | During the harvesting of polymetallic nodules on the seabed, the sediment plume due to disturbance on the seabed impacts the benthic ecosystem. A numerical simulation based on the SPH (smooth particle hydrodynamics) method is used to estimate the time and length scale of the plume impact near the seabed during a small-scale harvesting process. The simulation result considerably agrees with the one from the lab-scale water-channel experiment. It is found that, in the sediment plume, the traced sub-plume with iso-surface of lower sediment concentration travels a longer distance, and spends a longer time to achieve the stable state. Moreover, with the increase of the releasing rate of the disturbed sediment, the sub-plume spreads over greater distance, which also needs more time to achieve the stable state. |
| first_indexed | 2024-03-09T12:07:43Z |
| format | Article |
| id | doaj.art-775c42023b244db792d4d3cbc437fdfa |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T12:07:43Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-775c42023b244db792d4d3cbc437fdfa2023-11-30T22:55:56ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-12-011111010.3390/jmse11010010Simulation Study on the Sediment Dispersion during Deep-Sea Nodule HarvestingYuan Lin0Zixin Weng1Jin Guo2Xingshuang Lin3Nhan Phan-Thien4Jian Zhang5Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, ChinaInstitute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, ChinaInstitute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, ChinaInstitute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, ChinaDepartment of Engineering Mechanics, Zhejiang University, Hangzhou 310027, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310027, ChinaDuring the harvesting of polymetallic nodules on the seabed, the sediment plume due to disturbance on the seabed impacts the benthic ecosystem. A numerical simulation based on the SPH (smooth particle hydrodynamics) method is used to estimate the time and length scale of the plume impact near the seabed during a small-scale harvesting process. The simulation result considerably agrees with the one from the lab-scale water-channel experiment. It is found that, in the sediment plume, the traced sub-plume with iso-surface of lower sediment concentration travels a longer distance, and spends a longer time to achieve the stable state. Moreover, with the increase of the releasing rate of the disturbed sediment, the sub-plume spreads over greater distance, which also needs more time to achieve the stable state.https://www.mdpi.com/2077-1312/11/1/10sediment plumecollector plumedeep-sea mining |
| spellingShingle | Yuan Lin Zixin Weng Jin Guo Xingshuang Lin Nhan Phan-Thien Jian Zhang Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting Journal of Marine Science and Engineering sediment plume collector plume deep-sea mining |
| title | Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting |
| title_full | Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting |
| title_fullStr | Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting |
| title_full_unstemmed | Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting |
| title_short | Simulation Study on the Sediment Dispersion during Deep-Sea Nodule Harvesting |
| title_sort | simulation study on the sediment dispersion during deep sea nodule harvesting |
| topic | sediment plume collector plume deep-sea mining |
| url | https://www.mdpi.com/2077-1312/11/1/10 |
| work_keys_str_mv | AT yuanlin simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting AT zixinweng simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting AT jinguo simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting AT xingshuanglin simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting AT nhanphanthien simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting AT jianzhang simulationstudyonthesedimentdispersionduringdeepseanoduleharvesting |