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SUMMARY:Design of iced airfoils - Tiziano Ghisu
DTSTART:20101125T131000Z
DTEND:20101125T140000Z
UID:TALK27244@talks.cam.ac.uk
CONTACT:Dr Per Ola Kristensson
DESCRIPTION:Ice formation on an aircraft happens when supercooled water dr
 oplets impinge on the leading-edge\nsurfaces\, freezing immediately upon i
 mpact. Ice accretions alter the effective shape of the aircraft\,\nmodifyi
 ng the aerodynamic forces and moments caused by the air flow over iced co
 mponents. The\nprimary effects are increased drag\, reduced stall angle\, 
 and reduced maximum lift. Over the last 80\nyears\, significant efforts h
 ave been devoted to improving understanding both of the physics of the\nic
 e accretion process and of the resulting degradation in aerodynamic perfor
 mance. Significant\nprogress has also been made through improved certifi
 cation processes and more effective ice-\nprotection systems. Despite thes
 e continued efforts\, icing-induced incidents and accidents continue\nto o
 ccur on all classes of aircraft\, to the point that the National Transport
 ation Safety Board ranked\nicing among its “Most Wanted Aviation Transpo
 rtation Safety Improvements.”\nIn consideration of the impossibility of 
 eliminating all the causes/occurrences of ice build-up\, this\nwork approa
 ches the problem of ice formation on aircraft from a different perspective
 : can we\ndesign our aircraft so that they are insensitive (or at least le
 ss-sensitive) to ice formation?
LOCATION:Entertaining Room\, Darwin College
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