In this paper cavitation and supercavitation around hemispherical head form body was simulated. A finite volume solver benefiting from the VOF interface capturing method, large eddy simulation (LES), k-ω SST turbulence models and Kunz, or Sauer mass transfer models were employed to capture unsteady Cavitation and supercavitation flow. cavitation numbers,of, i.e., σ=0.5, 0.4, 0.2, 0.1, 0.05, and 0.02 have been considered. The simulation is performed under the framework of the OpenFOAM package. The main innovation in this work at the first is to present a correlation for the cavity length and diameter for hemispherical head form body. secondlly providing a detailed comparison of different turbulence and mass transfer models over wide rang especially in very low cavitation numbers such as σ=0.02 in the first time. Our numerical results are compared with the experimental data and suitable accuracy was observed.

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