Endwall directional cooling

An endwall, the endwall disposed at one end of a vane assembly, the endwall comprising:

• an endwall spar, the endwall spar including
• a leading edge,
• a trailing edge,
• an axis extending from the leading edge to the trailing edge, the axis perpendicular to the trailing edge, and
• a plurality of pedestals disposed on a hot surface of the endwall spar;
• a coversheet on the hot surface of the endwall spar;
• and
• a cooling fluid channel between the hot surface of the endwall spar and a cold surface of the coversheet, the cooling fluid channel including
• a cooling fluid inlet disposed in the endwall spar, and
• a cooling fluid outlet, the pedestals disposed within the cooling fluid channel between the cooling fluid inlet and the cooling fluid outlet,
• wherein the plurality of pedestals are formed at an angle with the axis of the endwall spar to direct a cooling fluid.

A method of cooling an endwall disposed at one end of a vane assembly, the method comprising:

• directing cooling fluid through a cooling fluid inlet, the cooling fluid inlet disposed in an endwall spar of the endwall, the endwall spar including a leading edge, a trailing edge, and an axis extending from the leading edge to the trailing edge, the axis perpendicular to the trailing edge;
• directing the cooling fluid through a cooling fluid channel, the cooling fluid channel formed between a hot surface of the endwall spar and a cold surface of a coversheet disposed on top of the endwall spar;
• directing the cooling fluid in a direction to match a direction of flow of a primary flow flowing over a hot surface of the coversheet;
• and
• ejecting the cooling fluid from a cooling fluid outlet at an angle that matches the direction of flow of a primary flow flowing over the hot surface of the coversheet.