Increasing jet entrainment, mixing and spreading
Abstract
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.
- Inventors:
-
- Wheatridge, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 869447
- Patent Number(s):
- 5338254
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F24 - HEATING F24F - AIR-CONDITIONING
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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/
Citation Formats
Farrington, Robert B. Increasing jet entrainment, mixing and spreading. United States: N. p., 1994.
Web.
Farrington, Robert B. Increasing jet entrainment, mixing and spreading. United States.
Farrington, Robert B. Sat .
"Increasing jet entrainment, mixing and spreading". United States. https://www.osti.gov/servlets/purl/869447.
@article{osti_869447,
title = {Increasing jet entrainment, mixing and spreading},
author = {Farrington, Robert B},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
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