Numerical analysis on hydrodynamic characteristics of a deep-sea mining vehicle under three typical motions

Dai, Yu; Xue, Cong; Qiao, Shan; Huang, Xiao

doi:10.1016/j.oceaneng.2021.109446

Cited by 19 publications

(4 citation statements)

References 31 publications

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“…According to the properties of the polymetallic nodule, the density and diameter of the particle were set to 2000 kg/m 3 and 0.05 m, respectively. In addition, the dynamic viscosity and density of seawater are 0.00161 kg/m•s and 1025 kg/m 3 , respectively, [28]. The collection duration was set to 30 s. The whole computational domain was divided into unstructured grids.…”

Section: Model Settingmentioning

confidence: 99%

Study on Collection Performance of Hydraulic Polymetallic Nodule Collector Based on Solid–Liquid Two-Phase Flow Numerical Simulation

Wang,

Li,

Wei

et al. 2023

Applied Sciences

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The hydraulic collector is an important device for collecting seafloor polymetallic nodules. In this study, a hydraulic polymetallic nodule collector with two acquisition nozzles and one transmission nozzle is described. The numerical model of the hydraulic collector is established based on the solid–liquid two-phase flow method, and it is verified by experimental tests. On this basis, the collection mechanism of the hydraulic collector is analyzed, and the effects of structural parameters and working parameters on its collection performance are explored. The results show that the collection height and slant angle of the acquisition nozzle are key factors for collection efficiency, with optimal heights below 150 mm and angles between 45 and 49∘. The recommended range for the center distance between the two acquisition confluence tubes is 650–730 mm. Excessive acquisition and transmission flow rates make a negligible contribution to improving the collection efficiency, but can also cause a significant increase in energy consumption. Therefore, the recommended ranges for acquisition and transmission flow rates are 140–160 m3/h and less than 80 m3/h, respectively. All of the results indicated that the parameters of the developed hydraulic collector were set reasonably, which thus ensured a balance between the collection efficiency and energy consumption.

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Section: Model Settingmentioning

confidence: 99%

Study on Collection Performance of Hydraulic Polymetallic Nodule Collector Based on Solid–Liquid Two-Phase Flow Numerical Simulation

Wang,

Li,

Wei

et al. 2023

Applied Sciences

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“…The process of deep-sea mining will not only release a large amount of mud and dissolved chemicals, forming sediment plumes, but also generate loud noise that will spread to the upper waters, which may adversely affect the ecology and biodiversity of the deep and middle-level waters located at a depth of 200-5000 m [6]. If commercial mining can be conducted safely and efficiently, Sustainability 2023, 15, 4572 2 of 15 and the impact on the marine ecological environment in the operation process is wellcontrolled, the abundant marine minerals will become alternative resources of the onshore mineral resources and meet the economic demand of human society in the future [7,8]. Therefore, most countries with marine resource reserves and technical possibilities are intensifying the exploration and exploitation of marine mineral resources, with particularly fierce competition in the mining of polymetallic nodules [9].…”

Section: Introductionmentioning

confidence: 99%

Status and Prospects of the Development of Deep-Sea Polymetallic Nodule-Collecting Technology

et al. 2023

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The deep-sea is rich in mineral resources, and deep-sea polymetallic nodules are considered to be the most likely resource for commercial exploitation. Since the discovery of polymetallic nodules by mankind, researchers around the world have made long and arduous explorations in the exploitation of deep-sea polymetallic nodules and have proposed various mining methods, such as the dragging bucket type, the continuous bucket rope type, the automatic shuttle boat type, and the pipeline -lifting type, and have carried out technical verification accordingly. In the collection of seabed polymetallic nodules, the development and testing of towed type, spiral-driven type, crawler self-propelled type, and suspended type technologies have been carried out, basically realizing the mining technology verification of seabed polymetallic nodules and providing technical support for commercial development. However, according to the demand for commercial development, there are still many technical difficulties in polymetallic nodule-collecting technology, and more focus needs to be placed on the efficiency, environmental protection, intelligence, safety, and reliability of the collecting system in the future. This paper compares the existing progress in collection technology and equipment, and provides ideas and references for the research and development of deep-sea polymetallic nodule-mining technology and equipment.

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“…They evaluated the hydrodynamic performance of a specific ROV model using numerical and experimental simulations at different Reynolds numbers ranging from 39,291 to 157,163, as well as various angles of attack from 0 to 45 degrees. Dai et al [25] conducted numerical analysis on a deep-sea mining vehicle to study the hydrodynamic distributions and changes in hydrodynamic coefficients. Their study provides an important reference for structure optimization and the development of control systems for mining vehicles.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Hydrodynamic Characteristics and Drag Influence of an Open-Frame Remotely Operated Underwater Vehicle

Zhang,

Wang,

Zhao

et al. 2023

JMSE

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Remotely operated underwater vehicles (ROVs) have been widely used in deep-sea resource exploitation and industrial engineering operations. To perform these tasks accurately in the deep-sea environment, stable motion control has become a key area of research on ROV systems, which has led to the importance of analyzing the hydrodynamic characteristic of ROVs. But a systematic methodology for analyzing the hydrodynamic characteristics of ROVs is still lacking nowadays. In this paper, systematic numerical simulation methods for analyzing hydrodynamic characteristics and shape optimization of a work-class ROV are conducted, and details of simulation procedures based on computational fluid dynamics are studied, which can be a foundation for robust controller design.

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Numerical analysis on hydrodynamic characteristics of a deep-sea mining vehicle under three typical motions

Cited by 19 publications

References 31 publications

Study on Collection Performance of Hydraulic Polymetallic Nodule Collector Based on Solid–Liquid Two-Phase Flow Numerical Simulation

Study on Collection Performance of Hydraulic Polymetallic Nodule Collector Based on Solid–Liquid Two-Phase Flow Numerical Simulation

Status and Prospects of the Development of Deep-Sea Polymetallic Nodule-Collecting Technology

Numerical Investigation on Hydrodynamic Characteristics and Drag Influence of an Open-Frame Remotely Operated Underwater Vehicle

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