Abstract: This paper provides an analysis of two transition models which only use local variables, one is SST γ Reθ t model based on empirical equation from experiment, and the other is laminar kinetic energy model which applies additional laminar kinetic energy equations. These two models, which were embedded into the in house RANS solver, are evaluated by numerical simulations of the flow around a series of T3 flat plates under different points. The results show that the calculation time of both models has increased nearly 50% compared to that of the original turbulence models. In the zero pressure gradient cases, the numerical results of both models agree well with the experiment data, while only in high turbulent intensity, the predicting accuracy of SST γ Reθ t model reduces. In non zero pressure gradient cases, the transition onset of both models slightly delay, as compared to the experiment data and the transition length of laminar kinetic energy model is shorter than the experiment result. The distribution of the kinetic energy at different position shows that SST γ Reθ tmodel can numerically simulate the transition flow with no physical meaning, while the laminar kinetic energy model agrees well with the experiment data, which means that it can reveal part of the transition mechanism.