Baffle inserts

An airfoil comprising:

• an airfoil body extending from an inner diameter platform to an opposed outer diameter platform along a longitudinal axis, wherein the airfoil body defines a leading edge and a trailing edge, and a cavity defined between the leading edge, the trailing edge, the inner diameter platform and the outer diameter platform, the cavity having an airfoil protrusion extending inward from an inner surface of the airfoil body;
• and
• a baffle body within the cavity extending along a baffle body axis, the baffle body having a baffle protrusion extending along a central protrusion axis at an angle with respect to the baffle body axis, wherein the end of the baffle protrusion abuts an end of the airfoil protrusion to maintain the position of the baffle body within the airfoil body,
• wherein the airfoil body includes a fluid inlet proximate to the outer diameter platform, wherein a flow path is defined between the inner surface of the airfoil body and the outer surface of the baffle body, wherein the cross-sectional area of the flow path converges in a direction away from the fluid inlet,
• wherein the surface area of the end of one of the baffle protrusion or the airfoil protrusion is greater than the surface area of the end of the other abutting protrusion.

An airfoil comprising:

• an airfoil body extending from an inner diameter platform to an opposed outer diameter platform along a longitudinal axis, wherein the airfoil body defines a leading edge and a trailing edge, and a cavity defined between the leading edge, the trailing edge, the inner diameter platform and the outer diameter platform, the cavity having an airfoil protrusion extending inward from an inner surface of the airfoil body;
• and
• a baffle body within the cavity extending along a baffle body axis, the baffle body having a baffle protrusion extending along a central protrusion axis at an angle with respect to the baffle body axis, wherein the end of the baffle protrusion abuts an end of the airfoil protrusion to maintain the position of the baffle body within the airfoil body,
• wherein the airfoil body includes a fluid inlet proximate to the inner diameter platform, wherein a flow path is defined between the inner surface of the airfoil body and the outer surface of the baffle body, wherein the cross-sectional area of the flow path converges in a direction away from the fluid inlet,
• wherein the surface area of the end of one of the baffle protrusion or the airfoil protrusion is greater than the surface area of the end of the other abutting protrusion.