Airfoil cooling arrangement, corresponding casting core mold insert and cooling method

摘要

An example airfoil cooling arrangement includes a airfoil wall (86) having a first face (90) and a second face (94) opposite the first face (90). The airfoil wall (86) establishes a channel (100) that is configured to communicate fluid between an inlet aperture (104) and an outlet aperture (108). The channel (100) includes secondary portion (116) that branch from a primary portion (112). The channel may also comprise a tertiary portion (120) and a quartary portion (124).