Effects of Large-Droplet Ice Accretion on Airfoil and Wing Aerodynamics and Control

An integrated experimental and computational investigation was conducted to determine the effect of simulated ridge ice shapes on airfoil aerodynamics. These upper-surface shapes are representative of those which may form aft of protected surfaces in super-cooled large droplet conditions. The simula...

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Bibliographic Details
Main Authors: Bragg, Michael B., Loth, Eric
Other Authors: ILLINOIS UNIV AT URBANA DEPT OF AERONAUTICAL AND ASTRONAUTICAL ENGINEERING
Format: Text
Language:English
Published: 2000
Subjects:
Aerodynamics
Snow
Ice and Permafrost
*ICE FORMATION
*AERODYNAMICS
*AERODYNAMIC CONTROL SURFACES
AIR FLOW
TURBULENCE
TURBULENT BOUNDARY LAYER
WIND TUNNEL TESTS
AERODYNAMIC DRAG
NAVIER STOKES EQUATIONS
LAMINAR FLOW
PRESSURE DISTRIBUTION
AERODYNAMIC LIFT
REYNOLDS NUMBER
LAMINAR BOUNDARY LAYER
AIRCRAFT PROTUBERANCES
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA379331
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA379331
Description
Summary:An integrated experimental and computational investigation was conducted to determine the effect of simulated ridge ice shapes on airfoil aerodynamics. These upper-surface shapes are representative of those which may form aft of protected surfaces in super-cooled large droplet conditions. The simulated ice shapes were experimentally tested on a modified National Advisory Committee for Aeronautics (NACA) 23012 (23012m) airfoil and Natural Laminar Flow (NLF) 0414 airfoil at Reynolds numbers of 1.8 million for a range of protuberance locations, sizes, and shapes. The computational study investigated the cases encompassed by the experimental study but in addition included higher Reynolds numbers and other airfoils from the NASA Commuter Airfoil Program.

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