Examination of boundary conditions for heat transfer through a porous wall

Abstract

An analytical model describing the heat transfer through a porous wall is presented.It utilizes an experimental upstream wall heat-transfer coefficient a s a boundary condition.An experimen: was conducted to determine this coefficient for a surface simulating the surface of a typical full coverage-film -cooled turbine blade, and the results are presented.The temperature r i s e s of the coolant approaching normal to the upstream surface and through a porous wall are more reasonable with the proposed model than with previous models.. _ 17.