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This paper contains a brief description of the numerical approach used to simulate the flow of cavitating liquids that was implemented in FloEFD™ software. Some computational results obtained using this approach are presented. The calculations used 3D Navier-Stokes equations coupled with the k-e turbulence model and equilibrium cavitation model. It is assumed that this process occurs at a fixed temperature (so-called isothermal cavitation). The validity of this assumption is confirmed by numerous test data. Since the liquids heat capacity is large enough to neglect the heat generated in the phase transition, it practically doesn't change the liquids temperature. This approach allows a minimized number of required thermodynamic properties of the liquid.