To predict the slot film-cooing adiabatic effectiveness

a mathematic model was developed based on cohence non-isothermal jet theory.The core temperature distribution of mixing layer in2Dwall jet was deduced through reasonable assumptions

and the temperature was regarded as the adiabatic wall temperature.In addition

this influence of slot geometry parameter and film blowing ratio on the cooling effectiveness was also considered

so the adiabatic effectiveness equation was obtained.The empirical coefficients in this prediction model should be fitted to the experimental data

showing that the present prediction model has an accuracy of within ±8% to all previous experimental data.The feasibility and potential application of this model have been demonstrated

and more experimental data are required for future verification and improvement.