Cooling of a turbine blade

摘要

Structure with elements includes a main body (21) of the element used in a gas stream and a plurality of fluid passage (25,26). Each outlet (27, 28) of the fluid passage (25,26) openes in the surface of the main body (21). Coolant fluid flows through the passage and from each outlet (27, 28) to cover the surface in a fluid film. A first one of the fluid passages is arranged to discharge the coolant fluid from the outlet (27, 28) in the direction of the gas stream (23) on the surface. The coolant fluid also flows from an outlet (28) of a second one of the fluid passages (26) toward the gas stream and lies adjacent and close to the first outlet (27) of the first fluid passage (25).