Accession Number:

ADA955193

Title:

The Calculation of the Pressure Distribution over the Surface ot Two-Dimensional and Swept Wings with Symmetrical Aerofoil Sections.

Descriptive Note:

Memorandum rept.,

Corporate Author:

AERONAUTICAL RESEARCH COUNCIL LONDON (ENGLAND)

Personal Author(s):

Report Date:

1953-07-01

Pagination or Media Count:

64.0

Abstract:

A simple method is described for calculating the pressure distribution on the surface of a thick two-dimensional aerofoil section, at any incidence, in incompressible potential flow. The method is particularly suitable for practical applications, since knowledge of the section ordinates only is required. This paper gives a complete derivation of the theory including a detailed discussion of the approximations made and their effect on the accuracy of the results. The pressure distributions calculated by the present method are identical with the exact values for aerofoils of elliptic cross-section, and the numerical values for Joukowsky aerofoils agree well with the exact solutions. Calculations for a typical practical aerofoil show good agreement with the results from S. Goldsteins method, approximation III. The method is extended to sheared wings of infinite span and to the centre-section of swept wings, using the solution for zero lift and the solution for the thin wing with lift. Great Britain

Subject Categories:

  • Theoretical Mathematics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE