Accession Number:

ADA214140

Title:

An Alternative Derivation for an Integral Equation for Linearized Subsonic Flow Over a Wing

Descriptive Note:

Final rept. Feb 1988-Jan 1989

Corporate Author:

WRIGHT RESEARCH AND DEVELOPMENT CENTER WRIGHT-PATTERSON AFB OH

Report Date:

1989-08-01

Pagination or Media Count:

41.0

Abstract:

An integral equation for the time dependent linearized subsonic flow over a wing has been derived in a previous report by K. G. Guderley and Maxwell Blair AD-A 176 684. The present alternative derivation due to Marc H. Williams is presented. The difference lies in the sequence of events. The original derivation was carried out in a coordinate system moving with the wing. Williams derivation makes the crucial step in a coordinate fixed in the undisturbed air and then carries out a transformation to wing coordinates. In addition, this derivation clarifies the relation between the integral equation for steady and unsteady flow, and derives a formulation based on the Lorentz transform. Keywords Subsonic flow Time dependence Unsteady aerodynamics Integral equations. edc

Subject Categories:

  • Aerodynamics
  • Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE