Fig. 3From: Structure and arrangement optimization of non-diagenetic gas hydrate jet crushing nozzles based on CFD simulationCommon nozzle structures for rock breaking [36]. a Straight-taper nozzle. b Convergent nozzle. c Convergent-divergent nozzle. d Dual gradient nozzle. e Constant velocity gradient nozzle. f Streamline NozzleBack to article page