Small Diameter Film Cooling Holes: Wall Convective Heat Transfer

  title={Small Diameter Film Cooling Holes: Wall Convective Heat Transfer},
  author={Gordon E. Andrews and M. Alikhanizadeh and A. A. Asere and C. I. Hussain and M. S. Khoshkbar Azari and Mike C. Mkpadi},
The wall heat transfer resulting from small diameter holes drilled at 90° through gas turbine combustion chamber and turbine blade walls is considered. Available information is briefly reviewed and shown to generally omit the hole approach surface heat transfer and to relate only to the internal hole heat transfer. Experimental techniques are described for the determination of the overall heat transfer in a metal plate with a large number of coolant holes drilled at 90°. The results are… CONTINUE READING