The flow analysis was made by applying the turbulent models in the scroll volume of centrifugal compressor. The $k-{varepsilon}.;k-{omega}$, Spalart-Allmaras and reynolds stress models are used in which the hybrid grid is applied for the simulation. The velocity vector the Pressure contour. the change of residual along the iteration number. and the dynamic head are simulated by solving the Navier-Stokes equations for the comparison of four example cases.