Abstract: The ANSYS Fluent was employed to establish the gas cooling and solid heating with power exponential growth model, and the characteristics of transient flow and heat transfer were analyzed. The numerical simulation results employing four typical turbulence models including standard k-ε model, standard k-ω model, transition SST model as well as Reynolds stress model were compared with three different types of experimental data, to study the effect of turbulence models on the transient fluid-solid coupled heat transfer. The results show that the exponentially increasing heat power is used partly for convection heat transfer while the other part remains in the solid, and the higher the increasing rate of heat power is, the lower the proportion of convective heat transfer is. Besides, the simulated equivalent surface heat fluxes are all lower than the experimental data, and the simulated values using ε type turbulence models are closer to the experimental data.