Modelling Complex Inlet Geometries in CFD: applied to air flow in ventilated rooms

M. Skovgaard, Peter V. Nielsen

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Modem inlet devices applied in the field of ventilation of rooms are getting more complex in terms of geometry in order to fulfil the occupants' demand for thermal comfort in the room and in order to decrease the energy consumption. This expresses the need for a more precise calculation of the flow field. In order to apply CFD for this purpose it is essential to be able to model the inlet conditions precisely and effectively, in a way which is comprehensible to the manufacturer of inlet devices and in a way which can be coped with by the computer.
In this paper a universal method is presented and tested. The method is based upon threedimensional - and radial wall jet theory and upon diffuser specific experimental data.
Original languageEnglish
Place of PublicationAalborg
PublisherDept. of Building Technology and Structural Engineering
Number of pages17
Publication statusPublished - 1991
SeriesIndoor Environmental Technology

Bibliographical note

Presented at the 12th AIVC Conference on Air Movement and Ventilation Control within Buildings, Ottawa, Canada, September, 1991

PDF for print: 22 pp.


  • Aircondition
  • Inlet Geometries
  • CFD
  • Air flow

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