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

reportActive / Technical Report | Accession Number: ADA379331 | Open PDF

Abstract:

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.

Author(s):
Bragg, Michael B. ; Loth, Eric
Author Organization(s):
ILLINOIS UNIV AT URBANA DEPT OF AERONAUTICAL AND ASTRONAUTICAL ENGINEERING
Descriptive Note:
Final rept.
Pagination:
0195

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DOT/FAA/AR-00/14
Monitor Series:
DOT/FAA/AR
 Subject Terms
Joint Capability Areas:
JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5_Command and Control; JCA_5.3_Planning; JCA_8.1_Communicate; JCA_8_Building Partnerships; JCA_5.3.3_Develop Strategy; JCA_8.1.1_Inform Domestic and Foreign Audiences; JCA_8.1.3_Influence Adversary and Competitor Audiences; JCA_1.2.7_Experimentation; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_JCA_4.1.2_Sustain the Force; JCA_4.1_Deployment and Distribution; JCA_1_Force Support; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_6_Net Centric; JCA_5.2_Understand
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*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
Field(s)/Group(s):
Aerodynamics, Snow, Ice and Permafrost
Report Date:
2000 Apr 01
Creation Date:
2000 Jul 26