Article and method of forming an article

1. A cooling article comprising:

a body portion separating an inner region and an outer region;

an aperture in the body portion, the aperture fluidly connecting the inner region to the outer region; and

a cooling feature extending away from an outer surface of the body portion, the cooling feature including a semi-circular geometry;

wherein the cooling feature disturbs fluid flow in the outer region; and

wherein the cooling article is arranged and disposed for insertion within a hot gas path component of a turbine engine.

2. The cooling article of claim 1 , wherein the cooling feature is selected from the group consisting of a pin, a bump, a dimple, a shielding member, and combinations thereof.

3. The cooling article of claim 1 , wherein the cooling feature is positioned adjacent to the aperture.

4. The cooling article of claim 3 , wherein the cooling feature is arranged and disposed to direct cross-flow away from the aperture.

5. The cooling article of claim 1 , wherein the cooling article comprises a plurality of additional cooling features extending away from the outer surface of the body portion; and wherein each additional cooling feature of the plurality of additional cooling features is selected from the group consisting of a pin, a bump, a dimple, a shielding member, and combinations thereof.

6. The cooling article of claim 5 , wherein the cooling feature and at least one of the additional cooling features include different geometries.

7. The cooling article of claim 5 , wherein a packing of the plurality of additional cooling features varies along the body portion.

8. The cooling article of claim 1 , wherein the hot gas path component is a turbine nozzle, and wherein the cooling article is arranged and disposed for insertion within the turbine nozzle.

9. The cooling article of claim 8 , wherein the cooling feature is arranged and disposed to provide near wall turbulence.

10. The cooling article of claim 8 , wherein the cooling feature is arranged and disposed to contact an inner surface of the turbine nozzle when the cooling article is inserted therein.

11. A cooling article comprising:

a body portion separating an inner region and an outer region;

a plurality of apertures in the body portion, the apertures fluidly connecting the inner region to the outer region; and

a plurality of cooling features extending away from an outer surface of the body portion, at least one of the plurality of cooling features including a semi-circular geometry;

wherein the cooling article is arranged and disposed within a turbine nozzle; and

wherein the plurality of cooling features provides heat transfer from the turbine nozzle.

12. A method of forming a cooling article, the method comprising:

forming a body portion defining an inner region and an outer region;

forming an aperture in the body portion, the aperture fluidly connecting the inner region to the outer region; and

forming a cooling feature extending away from an outer surface of the body portion, wherein the cooling feature includes a semi-circular geometry; and

wherein the cooling article is arranged and disposed for insertion within a hot gas path component of a turbine engine.

13. The method of claim 12 , wherein the forming of the cooling feature includes arranging and disposing the cooling feature to direct cross-flow away from the aperture.

14. The method of claim 12 , further comprising forming a plurality of additional cooling features extending away from the outer surface of the body portion.

15. The method of claim 14 , further comprising varying a geometry of at least one of the plurality of additional cooling features.

16. The method of claim 14 , further comprising varying a packing of the plurality of additional cooling features along the body portion.

17. The method of claim 14 , further comprising arranging and disposing the cooling feature and the plurality of additional cooling features to turbulate a coolant flow in the outer region.