Theoretical Prediction on Hydraulic Lift of a Coand? Effect-Based Mining Collector for Manganese Nodule

The undersea collecting vehicle is one of the three main parts in deep-sea exploitation system. Coand? effect-based collector picks up manganese nodules by providing an adverse pressure difference over nodule, through jet flowing around a curved wall. In order to overcome drawbacks repeated prototyping and experimenting traditional design procedure collector, theoretical guide should be well placed ensure correct strongly related parameters collector. this paper, simplified model wall jets was developed solution approximate closed form obtained predict lift force nodules. variational tendencies velocity, single-particle index perpendicular were investigated effects found stronger with higher initial non-dimensional slot height lower height. A CFD-DEM simulation number particles additionally performed give more insight into predictive accuracy theory. Target high efficiency collection particles, resulting certain predictability nodule lifting pre-prototype hydraulic device based on effect.