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Air Movement by Revolving Doors

Allgayer D.M., Hunt G.R., 2004
air movement | door | model | temperature difference
Bibliographic info: RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 4 Fig., 5 Ref.
Languages: English

The aiflows driven by a revolving door that links two rooms of initially uniform temperature are examined. Two situations are considered, the first in which the rooms are at equal temperature, and the second in which there is a temperature difference between the rooms.

The flows were examined using a small-scale model of a revolving door and with fresh- and

salt-water solutions to represent temperature differences. The results presented herein reveal

how the transfer of air across a revolving doorway depends on the rotation rate and temperature

difference. We identify rotation limited and buoyancy limited flows. Implications to the design

and operation of revolving doorways are discussed.


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