Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device
The collection of seabed ore particles is a core technology of exploiting deep sea mineral resources, with wall-attached jet collection technology based on Coandă-effect being considered as a nodule collection method with engineering application potential. Based on the experimentally verified CFD-DE...
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Editorial Office of Journal of Shanghai Jiao Tong University
2025-08-01
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| Series: | Shanghai Jiaotong Daxue xuebao |
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| Online Access: | https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-8-1059.shtml |
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| author | ZHANG Baiyuan, ZHAO Guocheng, XIAO Longfei |
| author_facet | ZHANG Baiyuan, ZHAO Guocheng, XIAO Longfei |
| author_sort | ZHANG Baiyuan, ZHAO Guocheng, XIAO Longfei |
| collection | DOAJ |
| description | The collection of seabed ore particles is a core technology of exploiting deep sea mineral resources, with wall-attached jet collection technology based on Coandă-effect being considered as a nodule collection method with engineering application potential. Based on the experimentally verified CFD-DEM numerical simulation, the optimization of geometric parameters of the collection device is conducted to improve pick-up efficiency. The influences of three geometric parameters, i.e., the ratio of the curvature radius of the convex curved wall to the diameter of the nodule particle R/d, the tangential radian of the jet θ, and the ratio of the thickness of the jet to the diameter of the nodule b/d on the critical unconditional jet flow rate q0, are investigated and compared. The nodule collection characteristics are revealed through an analysis of the flow field characteristics. The results show that b/d has the greatest influence on the pick-up efficiency, followed by R/d, while θ has the least. The performance of nodule collection is optimal when R/d=9, θ=1.05 rad, and b/d=0.26 in contrast conditions. This research provides technical support for designing and developing the Coandă-effect-based collection devices. |
| format | Article |
| id | doaj-art-9c39cdbaaf474a53bfc46c09d603f3ad |
| institution | Kabale University |
| issn | 1006-2467 |
| language | zho |
| publishDate | 2025-08-01 |
| publisher | Editorial Office of Journal of Shanghai Jiao Tong University |
| record_format | Article |
| series | Shanghai Jiaotong Daxue xuebao |
| spelling | doaj-art-9c39cdbaaf474a53bfc46c09d603f3ad2025-08-26T09:29:34ZzhoEditorial Office of Journal of Shanghai Jiao Tong UniversityShanghai Jiaotong Daxue xuebao1006-24672025-08-015981059106610.16183/j.cnki.jsjtu.2023.470Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection DeviceZHANG Baiyuan, ZHAO Guocheng, XIAO Longfei0 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Institute of Marine Equipment, Shanghai Jiao Tong University, Shanghai 200240, China; 3. SJTU Yazhou Bay Institute of Deepsea Sci-Tech, Sanya 572024, Hainan, ChinaThe collection of seabed ore particles is a core technology of exploiting deep sea mineral resources, with wall-attached jet collection technology based on Coandă-effect being considered as a nodule collection method with engineering application potential. Based on the experimentally verified CFD-DEM numerical simulation, the optimization of geometric parameters of the collection device is conducted to improve pick-up efficiency. The influences of three geometric parameters, i.e., the ratio of the curvature radius of the convex curved wall to the diameter of the nodule particle R/d, the tangential radian of the jet θ, and the ratio of the thickness of the jet to the diameter of the nodule b/d on the critical unconditional jet flow rate q0, are investigated and compared. The nodule collection characteristics are revealed through an analysis of the flow field characteristics. The results show that b/d has the greatest influence on the pick-up efficiency, followed by R/d, while θ has the least. The performance of nodule collection is optimal when R/d=9, θ=1.05 rad, and b/d=0.26 in contrast conditions. This research provides technical support for designing and developing the Coandă-effect-based collection devices.https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-8-1059.shtmlpolymetallic nodulecoandă-effect-based collectioncomputational fluid dynamics-discrete element method (cfd-dem)nodule pick-up efficiencyparametric optimization |
| spellingShingle | ZHANG Baiyuan, ZHAO Guocheng, XIAO Longfei Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device Shanghai Jiaotong Daxue xuebao polymetallic nodule coandă-effect-based collection computational fluid dynamics-discrete element method (cfd-dem) nodule pick-up efficiency parametric optimization |
| title | Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device |
| title_full | Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device |
| title_fullStr | Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device |
| title_full_unstemmed | Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device |
| title_short | Optimization of Geometrical Parameters of Coandă-Effect-Based Polymetallic Nodule Collection Device |
| title_sort | optimization of geometrical parameters of coanda effect based polymetallic nodule collection device |
| topic | polymetallic nodule coandă-effect-based collection computational fluid dynamics-discrete element method (cfd-dem) nodule pick-up efficiency parametric optimization |
| url | https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-8-1059.shtml |
| work_keys_str_mv | AT zhangbaiyuanzhaoguochengxiaolongfei optimizationofgeometricalparametersofcoandaeffectbasedpolymetallicnodulecollectiondevice |