..., such as perforation diameters and air injection areas, remains challenging. This study experimentally investigates an annular airlift pump to understand the influence of various nozzle configurations on performance. Using radial and axial injection with different perforation counts, high-speed camera visualization...

...Dong Hu; Chuan-Lin Tang; Shu-Peng Cai; Feng-Hua Zhang With simple structure, excellent reliability, low cost, no restriction at depth of water, and easy control and operation, airlift pumps have special advantage in borehole hydraulic jet mining, river dredging and deep sea mining. To clarify...