Evaluation of Icing Scaling on Swept NACA 0012 Airfoil Models

Icing scaling tests in the National Aeronautics and Space Administration (NASA) Glenn Icing Research Tunnel (IRT) were performed on swept wing models using existing recommended scaling methods that were originally developed for straight wing. Some needed modifications on the stagnation-point local collection efficiency (i.e., β0) calculation and the corresponding convective heat transfer coefficient for swept NACA 0012 airfoil models have been studied and reported in 2009, and the correlations will be used in the current study. The reference tests used a 91.4-cm chord, 152.4-cm span, adjustable sweep airfoil model of NACA 0012 profile at velocities of 100 and 150 knot and MVD of 44 and 93 mm. Scale-to-reference model size ratio was 1:2.4. All tests were conducted at 0° angle of attack (AoA) and 45° sweep angle. Ice shape comparison results were presented for stagnation-point freezing fractions in the range of 0.4 to 1.0. Preliminary results showed that good scaling was achieved for the conditions test by using the modified scaling methods developed for swept wing icing.

• Record URL:
  http://hdl.handle.net/2060/20120009186
• 
• Corporate Authors:

  Ohio Aerospace Institute

  Cleveland, OH  United States  44142

  ASRC Aerospace Corporation

  Cleveland, OH  United States  44135

  National Aeronautics and Space Administration

  Glenn Research Center, 21000 Brookpark Road
  Cleveland, OH  United States  44135
• Authors:
  • Tsao, Jen-Ching
  • Lee, Sam
• Conference:
  • International Conference on Aircraft and Engine Icing and Ground Deicing
  • Location: Chicago IL, United States
  • Date: 2011-6-13 to 2011-6-17
• Publication Date: 2012-5

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Photos; References;
• Pagination: 22p

Subject/Index Terms

• TRT Terms: Aircraft; Airfoils; Ice formations; Icing; Mathematical models; Wings (Aircraft)
• Uncontrolled Terms: Swept wings
• Subject Areas: Aviation; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01447853
• Record Type: Publication
• Report/Paper Numbers: NASA/CR-2012-217419, 11ICE-0005, E-18090
• Contract Numbers: NNC07BA13B
• Files: TRIS
• Created Date: Oct 1 2012 9:20AM