Engine component assembly with a cooling aperture

A method of cooling an engine component assembly, the method comprising:

• flowing a cooling fluid through at least one cooling aperture from a cooling fluid supply toward a first substrate to define a cooling surface, the first substrate spaced from a second substrate to define an interior cavity, the at least one cooling aperture located within the second substrate, formed at a non-orthogonal angle with respect to the cooling surface, and defining a streamline;
• directing the cooling fluid flow along the streamline toward at least one cavity provided within the first substrate downstream of the at least one cooling aperture;
• impinging the cooling fluid flow on a cavity surface defining the at least one cavity;
• and
• cooling the first substrate.

An engine component assembly, comprising:

• a first engine component having a hot surface in thermal communication with a hot combustion gas flow and a cooling surface;
• at least one cavity recessed within the cooling surface and having a cavity surface;
• a second engine component having a first surface in fluid communication with a cooling fluid supply and a second surface facing and spaced from the cooling surface to define a space between the second surface and the cooling surface;
• and
• at least one cooling aperture extending through the second engine component from the first surface toward the cooling surface at a non-orthogonal angle with respect to the first surface;
• wherein the at least one cooling aperture and the at least one cavity are arranged such that the at least one cooling aperture is directed toward the cavity surface and the at least one cavity is downstream from the at least one cooling aperture.