Air Distribution in Rooms with Ceiling-mounted Obstacles and Three-Dimensional Isothermal Flow

Peter V. Nielsen, Louis Evensen, Peter Grabau, Jens H. Thulesen-Dahl

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Abstract

The air supply openings in ventilated rooms are often placed close to the ceiling. A recirculating flow is generated in the room, and the region between the ceiling and the occupied zone serves as an entrainment and velocity decay area for the wall jets. Ceiling-mounted obstacles may disturb this flow and, in particular, certain dimensions and positions of the obstacles cause a downward deflection of the jets into the occupied zone resulting in reduced thermal comfort for the inhabitants.
Original languageEnglish
Place of PublicationAalborg
PublisherDept. of Building Technology and Structural Engineering, Aalborg University
Number of pages11
Publication statusPublished - 1987
SeriesIndoor Environmental Technology
Number3
VolumeR8714
ISSN0902-7513

Bibliographical note

Presented at "Room Vent 87, International Conference on Air Distribution in Ventilated Spaces", Stockholm, June 1987

PDF for print: 18 pp.

Keywords

  • Aircondition
  • Ceiling-Mounted Obstacles
  • Isothermal Flow
  • Air Distribution

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