Radial jet predictions based on Computational Fluid Dynaics

Pichurov G., Stankov P., Ivanov M.
Year:
2006
Bibliographic info:
Healthy buildings , HB 2006, Lisboa, 4-8 june 2006, Vol V, p 125-128

This numerical study demonstrates the importance of buoyancy on the jet distribution in a ventilated room. The flow parameters are thus strongly affected in the occupied zone. 25 cases of diffuser locations were studied . For each simulation done in two-dimensions on a cylindrical computational grid, a critical Archimedes number was found at which the jet failed to attach to the ceiling.A relationship between the separation distance and the Archimedes number was shown.

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