Analysis and Experimental Investigation of Flow Field in Hydraulic Transportation with Deep-Sea Polymetallic Nodule Collector
Theoretical calculation was made for the flow field in the hydraulic transportation with deep-sea polymetallic nodule collector,and the relationship between particle size of polymetallic nodules and minimum conveying speed was obtained.The distribution of flow pattern in the conveying channel was simulated with the jet velocity of nozzle at 15 m/s,20 m/s and 25 m/s respectively,and rate of the flow at 30 mm away from the lower surface of the channel was measured.A laboratory test was conducted for nodules pick-up by using a collector with different jet velocities of nozzles,and it is found that the obtained results are consistent with the theoretical calculation and simulation results.
polymetallic nodulesdeep-sea miningcollectornozzle jetfluid simulationpipeline transport
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