Development of computational model for full-coverage film cooling

The target of the present study is to develop a simple model which can be used for the computational prediction of the temperature distribution within the full-coverage film-cooled (FCFC) wall. This paper summarizes the comparison and discussion of the experimental and numerical results recently obtained. Three computational models are proposed, while the numerical method is based on the Improved Inner Nodal Point Method. Boundary conditions are given of the heat transfer coefficients experimentally measured. The surface temperature distributions obtained by the combined heat transfer/heat conduction test are well reproduced by these computations and it is concluded that the heat transfer data of uniform wall-temperature condition can be extensively used for the general cases with heat conduction inside the FCFC wall. These models are also used to compute the transient response of the system under study and to clarify the effects of wall thickness and of wall thermal conductivity on the FCFC performance.