Abstract

An experimental evaluation of surface blowing as an anti-icing technique applicable to aircraft surfaces is presented. A circular cylinder was used to approximate the leading edge of an aircraft icing surface utilizing a number of slots located at the frontal surface along the cylinder to inject air counter to the main air-droplet stream. The effects of afr blowing for single and multiple slots as well as the effect of air injection rates on the reduction of ice accretion rate are reported. The experimental results indicate that surface blowing produces a general reduction in ice buildup.

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