NUMERICAL PREDICTION OF AERODYNAMIC PERFORMANCE OF A COMPLETE AIRCRAFT WITH CONTAMINATED WINGS AND FLAPS

Numerical analyses have been carried out on the aerodynamics of a complete aircraft with contaminated wings and flaps. The numerical method is based on an interactive boundary layer approach that involves interaction between the inviscid potential and viscous boundary layer solutions. The potential flow is obtained by using a low-order panel method while the boundary layer solution is obtained by solving the three dimensional integral boundary layer equations in a streamline coordinate system. The rough surface skin-friction relations of Dvorak (1969), which incorporate both surface roughness height and density, are used to deal with the contamination effects. A computer code, PMAL3D, has been developed for carrying out the numerical calculations. Predictions by PMAL3D are in very close agreement with experimental data for clean surface cases with or without ground effect. Computational results and discussion are further given for the influence of contamination on total lift of a configuration. In terms of total lift loss, PMAL3D predicts results in agreement with the experiment.

• Record URL:
  • http://data.tc.gc.ca/archive/eng/innovation/tdc-summary-14000-14021e-685.htm
• Corporate Authors:

  Transport Canada

  Transportation Development Centre, 800 Rene-Levesque Boulevard West, Suite 600
  Montreal, Quebec  Canada  H3B 2X1

  National Research Council of Canada

  Institute for Aerospace Research, 1200 Montreal Road
  Ottawa, Ontario  Canada  K1A 0R6
• Authors:
  • Crabbe, R S
  • SU, J
• Publication Date: 1998-6

Language

• English

Media Info

• Features: Appendices; Figures; References;
• Pagination: 33 p.

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Aircraft; Boundary layer flow; Boundary layer separation; Computer programs; Flaps (Aircraft); Icing; Mathematical prediction; Numerical analysis; Roughness; Takeoff; Wings (Aircraft)
• Identifier Terms: PMAL3D (Computer program)
• Uncontrolled Terms: Contamination
• Subject Areas: Aviation; Data and Information Technology; Vehicles and Equipment;

Filing Info

• Accession Number: 00941177
• Record Type: Publication
• Report/Paper Numbers: TP 14021E
• Files: TRIS
• Created Date: Apr 12 2003 12:00AM