Increasing jet entrainment, mixing and spreading

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869447

Farrington, Robert B ^[1]

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1. Wheatridge, CO

A free jet of air is disturbed at a frequency that substantially matches natural turbulences in the free jet to increase the entrainment, mixing, and spreading of air by the free jet, for example in a room or other enclosure. The disturbances are created by pulsing the flow of air that creates the free jet at the desired frequency. 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.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC02-83CH10093
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 5338254
• OSTI ID: 869447
• Country of Publication: United States
• Language: English

Related Subjects

increasing
jet
entrainment
mixing
spreading
free
air
disturbed
frequency
substantially
matches
natural
turbulences
increase
example
enclosure
disturbances
created
pulsing
flow
creates
desired
accomplished
sequentially
occluding
duct
confines
directs
rotating
disk
axis
transverse
free jet
axis transverse
desired frequency
substantially matches
/454/