Slot jet reattachment nozzle and method of operation

A system for transferring a substance over an impingement surface, comprising:

• a plurality of slot jet reattachment nozzles operable to direct the substance over the impingement surface, the plurality of slot jet reattachment nozzles located proximate to the impingement surface, each slot jet reattachment nozzle comprising:
• a slot operable to direct at least a portion of the substance through the slot, the slot having an outer edge, the slot further having a maximum inner width along a lengthwise direction of the slot and a maximum inner length along a radial direction of the slot, the ratio of the maximum inner length to the maximum inner width being greater than two;
• and
• a base coupled to the slot, the base having a width greater than the maximum inner width and a length greater than the maximum inner length to redirect at least a portion of the substance through the slot at an angle.

A method for transferring a substance over an impingement surface, comprising:

• positioning a first slot jet reattachment nozzle having a first maximum inner width along the lengthwise direction and a first maximum inner length along the radial direction, a first slot outer edge, and first reattachment distance proximate to the impingement surface;
• positioning a second slot jet reattachment nozzle having a second maximum inner width along the lengthwise direction and a second maximum inner length along the radial direction, a second slot outer edge, and a second reattachment distance proximate to the impingement surface, and adjacent to the first slot jet reattachment nozzle such that the distance between the first slot outer edge and the second slot outer edge is between three to six times the first reattachment distance;
• and
• directing the substance through the first slot jet reattachment nozzle and the second slot jet reattachment nozzle over the impingement surface.