Abstract-A numerical code for the simulation of three-dimensional viscous flow in turbomachinery blade rows is developed and applied to an axial transonic fan and turbine stator. The Navier-Stokes equations are witten in a rotating frame of reference and transformed to generalized body-fitted coordinate system. The governing equations are solved using the Pulliam's implicit diagonalized scheme and the turbulence effect is modeled using the Baldwin-Lomax algebraic turbulence model. Results are presented for an annular turbine stator and a transonic fan rotor, and are compared with the experimental results obtained at NASA Lewis Research Center.