Pseudoshocks in straight channel flows were numerically simulated by solving the two-dimensional Reynolds-averaged Navier-Stokes equations. The object of the present simulation was to investigate the influence of parameters on the structure of pseudoshocks and to validate the model of the pseudoshock mechanism proposed in the previous paper. In this simulation, Harten-Yee's second order-accuracy TVD scheme was used for sharp resolution of the shock wave and numerical stability, and Baldwin-Lomax's algebraic model was used for turbulent flows. The computational results agreed well with the experimental ones and with the proposed model of λ-and X-type pseudoshocks.