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A method and apparatus for controlling the flow of combustion air, fuel and products of combustion in a heater and equalizing radiant heat flux by providing a structure on one or more of the heater walls that attaches the boundary layer and main flow to the heater wall and increases wall surface are

A method and apparatus for controlling the flow of combustion air, fuel and products of combustion in a heater and equalizing radiant heat flux by providing a structure on one or more of the heater walls that attaches the boundary layer and main flow to the heater wall and increases wall surface area and view angles.

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1. A heater enclosure, comprising: a pair of opposing sidewalls, each sidewall having a substantially planar internal surface;a pair of opposing end walls, each opposing end wall being substantially perpendicular to each opposing sidewall and having a substantially planar internal surface;an opposin

1. A heater enclosure, comprising: a pair of opposing sidewalls, each sidewall having a substantially planar internal surface;a pair of opposing end walls, each opposing end wall being substantially perpendicular to each opposing sidewall and having a substantially planar internal surface;an opposing top wall and bottom wall, the top wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, the bottom wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, wherein the internal surfaces of each wall collectively form a cavity therein;one or more nozzles coupled to one or more walls, the nozzles introducing a fluid flow into the cavity and adjacently along the internal surface of at least one of the walls in a single direction; andone or more structures extending inwardly from the internal surface of the wall that is adjacent to the fluid flow, the structures maintaining the fluid flow substantially adjacent along the internal surface of the wall that is adjacent to the fluid flow, and wherein the fluid flow is maintained substantially adjacent along the internal surface of one or more walls during operation of the heater enclosure,wherein the structure comprises at least one dimple, andwherein the surface of one or more dimples is entirely formed with a constant radius. 2. The heater enclosure of claim 1, wherein the structure comprises a valley. 3. The heater enclosure of claim 1, wherein the structure comprises a plurality of dimples arranged in an array, the array comprising at least a first row and a second row, each row comprising two or more dimples. 4. The heater enclosure of claim 3, wherein the dimples of the first row are positioned offset relative to the dimples of the second row. 5. The heater enclosure of claim 4, wherein the offset is approximately 9 inches. 6. The heater enclosure of claim 1, further comprising a plurality of tubes passing through at least a portion of the cavity. 7. The heater enclosure of claim 1, wherein the dimple comprises a diameter of approximately 6 inches. 8. The heater enclosure of claim 1, wherein the dimple comprises a depth of approximately ¾ of an inch. 9. The heater enclosure of claim 1, wherein the one or more nozzles comprises a plurality of nozzles. 10. A method for operating a heater enclosure, the method comprising: providing a combustion chamber having a pair of opposing sidewalls, a pair of opposing end walls, and a top wall opposing a bottom wall, each wall being substantially planar and positioned to collectively define a cavity therein;inducing a fluid flow within the cavity and adjacently along at least one of the walls in a single direction, the fluid flow comprising a fuel component, an air component, and a combustion product component, andproviding at least one structure on the wall that is adjacent to the fluid flow, the structures creating a beneficial pressure gradient that maintains the fluid flow adjacently against the wall, and wherein the fluid flow is maintained substantially adjacent along the internal surface of one or more walls during operation of the heater enclosure,wherein the structure comprises at least one dimple, andwherein the surface of one or more dimples is entirely formed with a constant radius. 11. The method of claim 10, wherein the structure comprises a valley. 12. The method of claim 10, wherein the dimple comprises a diameter of approximately 6 inches. 13. The method of claim 10, wherein the dimple comprises a depth of approximately ¾ of an inch. 14. The method of claim 10, wherein the structure comprises a plurality of dimples arranged in an array, the array comprising at least a first row and a second row, each row comprising two or more dimples. 15. The method of claim 14, wherein the dimples of the first row are positioned offset relative to the dimples of the second row. 16. A heater enclosure, comprising: a pair of opposing sidewalls, each sidewall having a substantially planar internal surface;a pair of opposing end walls, each opposing end wall being substantially perpendicular to each opposing sidewall and having a substantially planar internal surface;an opposing top wall and bottom wall, the top wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, the bottom wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, wherein the internal surfaces of each wall collectively form a cavity therein;one or more nozzles coupled to one or more walls, the nozzles introducing a fluid flow into the cavity and adjacently along the internal surface of at least one of the walls, the fluid flow undergoing combustion thereby producing heat; andone or more dimples extending inwardly from the internal surface of the wall that is adjacent to the fluid flow, the dimples maintaining the fluid flow substantially adjacent along the internal surface of the wall that is adjacent to the fluid flow,wherein the depth of one or more dimples is entirely formed with a constant radius, the dimples directing the heat radiantly towards a plurality of tubes and reducing peak radiant flux rates exposed on the plurality of tubes, the plurality of tubes passing through at least a portion of the cavity. 17. The heater enclosure of claim 16, wherein the dimples are arranged in an array, the array comprising at least a first row and a second row, each row comprising two or more dimples. 18. A heater enclosure, comprising: a pair of opposing sidewalls, each sidewall having a substantially planar internal surface;a pair of opposing end walls, each opposing end wall being substantially perpendicular to each opposing sidewall and having a substantially planar internal surface;an opposing top wall and bottom wall, the top wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, the bottom wall being substantially perpendicular to each opposing sidewall and to each opposing end wall and having a substantially planar internal surface, wherein the internal surfaces of each wall collectively form a cavity therein;one or more air supply nozzles coupled to one or more walls, the air supply nozzles introducing an air flow into the cavity and adjacently along the internal surface of at least one of the walls;one or more fuel supply nozzles coupled to one or more walls, the fuel supply nozzles introducing a gas flow into the cavity and adjacently along the internal surface of the same wall that the air flow is introduced, the gas flow and the air flow being combined within the cavity to form at least a portion of a fluid flow; andone or more structures extending inwardly from the internal surface of the wall that is adjacent to the fluid flow, the structures maintaining the fluid flow substantially adjacent along the internal surface of the wall that is adjacent to the fluid flow,wherein the fluid flow undergoes flameless combustion, thereby generating heat,wherein the structure comprises at least one dimple, andwherein the depth of one or more dimples is entirely formed with a uniform radius. 19. The heater enclosure of claim 18, further comprising a plurality of tubes passing through at least a portion of the cavity. 20. The heater enclosure of claim 19, wherein the structures comprise at least one dimple, the dimples directing the heat radiantly towards the plurality of tubes and reducing peak radiant flux rates exposed on the plurality of tubes. 21. The heater enclosure of claim 18, wherein the structure comprises a plurality of dimples arranged in an array, the array comprising at least a first row and a second row, each row comprising two or more dimples.