An airfoil (100; 200) comprising: an airfoil body (102; 202) extending from an inner diameter platform (104; 204) to an opposed outer diameter platform (106; 206) along a longitudinal axis, wherein the airfoil body (102; 202) defines a leading edge (105; 205) and a trailing edge (107; 207), and a cavity (112; 212) defined between the leading edge (105; 205), the trailing edge (107; 207), the inner diameter platform (104; 204) and the outer diameter platform (106; 206), the cavity (112; 212) having an airfoil protrusion extending inward from an inner surface (110; 210) of the airfoil body (102; 202); and a baffle body (114; 214) within the cavity (112; 212) extending along a baffle body axis, the baffle body (114; 214) 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 (114; 214) within the airfoil body (102; 202); wherein at least one of the inner diameter platform or the outer diameter platform includes a fluid inlet, wherein the distance (d) between the inner surface of the airfoil body and the outer surface of the baffle body taken in a direction along the central protrusion axis of the baffle protrusion is smaller proximate the platform opposite the fluid inlet than proximate to the other platform; and wherein the surface area (130, 132) of the end (121, 123) of one of the baffle protrusion or the airfoil protrusion is greater than the surface area (130, 132) of the end (121, 123) of the other abutting protrusion (120, 108), characterized by: a flow path defined between the inner surface of the airfoil body and the outer surface of the baffle body, and the cross-sectional area of the flow path converges in a direction away from the fluid inlet. an airfoil body (102; 202) extending from an inner diameter platform (104; 204) to an opposed outer diameter platform (106; 206) along a longitudinal axis, wherein the airfoil body (102; 202) defines a leading edge (105; 205) and a trailing edge (107; 207), and a cavity (112; 212) defined between the leading edge (105; 205), the trailing edge (107; 207), the inner diameter platform (104; 204) and the outer diameter platform (106; 206), the cavity (112; 212) having an airfoil protrusion extending inward from an inner surface (110; 210) of the airfoil body (102; 202); and a baffle body (114; 214) within the cavity (112; 212) extending along a baffle body axis, the baffle body (114; 214) 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 (114; 214) within the airfoil body (102; 202); wherein at least one of the inner diameter platform or the outer diameter platform includes a fluid inlet, wherein the distance (d) between the inner surface of the airfoil body and the outer surface of the baffle body taken in a direction along the central protrusion axis of the baffle protrusion is smaller proximate the platform opposite the fluid inlet than proximate to the other platform; and wherein the surface area (130, 132) of the end (121, 123) of one of the baffle protrusion or the airfoil protrusion is greater than the surface area (130, 132) of the end (121, 123) of the other abutting protrusion (120, 108),