The design of wind tunnel fans.

Show simple item record Collar, A. R. 2022-07-21T11:51:23Z 2022-07-21T11:51:23Z 1940-08-10
dc.description.abstract Summary.—The present report is one of a series dealing with N.P.L. methods for the design of return flow wind tunnels. Reports already issued deal with the design of the Compressed Air Tunnel¹ and Open Jet Tunnels,² with the design of corner cascades³ and fan straighteners, ⁴ and with the improvement of velocity distribution by means of windmills⁵ and gauzes.⁶ An explanation is now given of the method usually adopted in the design of fans for return flow tunnels ; as an example of the method, the design of the fan for the N.P.L. non-turbulent tunnel is considered in detail. It is shown that for a wind tunnel a fan with blades of constant chord is advisable ; and a formula is given by means of which a rapid estimate can be made of the variation in rotational speed of the fan corresponding to a variation in power factor at constant power. en_US
dc.publisher H. M. Stationary Office en_US
dc.relation.ispartofseries ARC R&M;1889
dc.title The design of wind tunnel fans. en_US
dc.type Technical Report en_US

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