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Title: Enhancement of wall jet transport properties

By enhancing the natural instabilities in the boundary layer and in the free shear layer of a wall jet, the boundary is minimized thereby increasing the transport of heat and mass. Enhancing the natural instabilities is accomplished by pulsing the flow of air that creates the wall jet. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct.
 [1];  [2]
  1. (Broomfield, CO)
  2. (Golden, CO)
Issue Date:
OSTI Identifier:
Midwest Research Institute (Kansas City, MO) NREL
Patent Number(s):
US 5599229
Contract Number:
Research Org:
Midwest Research Institute
Country of Publication:
United States
enhancement; wall; jet; transport; properties; enhancing; natural; instabilities; boundary; layer; free; shear; minimized; increasing; heat; mass; accomplished; pulsing; flow; air; creates; sequentially; occluding; duct; confines; directs; rotating; disk; axis; transverse; boundary layer; transport properties; wall jet; axis transverse; /454/34/