Film cooled slotted wall

A wall adaptable for use in a gas turbine engine between a first fluid and a second fluid being hotter than said first fluid, comprising:

• a first side over which is flowable said first fluid;
• an opposite second side spaced from said first side along a transverse axis and over which is flowable said second fluid in a downstream direction along an axial axis disposed perpendicularly to said transverse axis;
• an elongate slot extending partly inwardly along said transverse axis from said second side toward said first side and longitudinally along a longitudinal axis disposed perpendicularly to both said transverse axis and said axial axis;
• a plurality of longitudinally spaced apart metering holes extending partly inwardly from said first side toward said second side, and disposed in flow communication with said slot for channeling thereto said first fluid;
• said holes being inclined along centerlines thereof at a compound angle relative to said second side for discharging said first fluid obliquely into said slot and at a shallow first discharge angle from said slot along said second side into said second fluid for film cooling said wall second side;
• and
• said holes being disposed in pairs having an acute included angle therebetween and converging together toward said slot for impinging together in said slot said first fluid channeled therethrough.