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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 6, No. 1, 2009, pp. 23-34
Bioline Code: st09003
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 6, No. 1, 2009, pp. 23-34

 en Innovative approach to design a new national low speed wind tunnel
Abbaspour, M. & Shojaee, M. N.

Abstract

A new multipurpose wind tunnel with adjustable test section designed in the science and research branch of Islamic Azad University site could be used either as the environmental, subsonic or climatic wind tunnels. For this purpose, a new design approach was adopted in which through the adjustment of the wind tunnel cycle, i.e. the nozzle of test section,it could be utilized as any of the three wind tunnels. A design used for environmental wind tunnels and other contraction which was adjusted by 50 % through changes in the polynomial contraction for other applications. As a result, the best fitted profile for the environmental wind tunnels contraction was selected by contraction best fit program. Consequently, the flow properties and flow separation of contractions were analyzed by the computational fluid dynamics model in a computer software. This method is also suitable for existing low speed wind tunnels with special applications.

Keywords
Nozzle, environmental, subsonic, climatic, pollutant

 
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