Film Cooling from Two Rows of Holes with Opposite Orientation Angles: Heat Transfer

摘要

Heat transfer coefficient ratio distributions are measured for film cooling from two rows of holes with opposite orientation angles. The inclination angle is fixed at 35° and orientation angles are set to 45°for the downstream row and -45? for the upstream row. Four film cooling hole arrangements including inline and staggered configurations row. Four film cooling hole arrangements including inline and staggered configurations are investigated. The blowing ratios considered are 0.5, 1.0 and 2.0.