This paper mainly simulates liquid nitrogen cavitating flow over a three-dimensional twisted hydrofoil (Twist-11N) based on large eddy simulation (LES) turbulence model.The period of shedding cavitation is observed according to pressure fluctuation characteristics at specific monitoring points.Compared with cavitation of water
cryogenics cavitation shows distinctness.Are-entrant jet and a pair of side-entrant jets are observed during cavitating evolution
which is unrevealed in two-dimensional cavitation.The vortex analysis of the interaction between shedding cavitation and the flowing field is performed.It is indicated that the occurrence of cavitation first leads to the unsteady of flow and thus vortexes occur
which further causes the boundary layer separation and cavity shedding.