Abstract
CFD simulations were applied to cavitating flow around a turbopump inducer. Unsteady simulations were performed for the full 3D model of an inducer, changing cavitation coefficients in the range between 0.02 and 0.07. The calculated results were compared with those of experiments conducted at the cavitation tunnel at JAXA-KSPL. The break-down of the suction performance as decrease of a cavitation coefficient was reasonably reproduced, and the simulation clearly showed the growth of the cavity for lower cavitation number and unsteady change of cavity structure appeared on inducer blades.
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