Accession Number:

ADB011996

Title:

A New Finite Element Supersonic Kernel Function Method in Lifting Surface Theory. Volume I

Descriptive Note:

Final rept. 20 Oct 1974-20 Oct 1975

Corporate Author:

LOCKHEED MISSILES AND SPACE CO INC HUNTSVILLE AL HUNTSVILLE ENGINEERING CENTER

Personal Author(s):

Report Date:

1976-04-01

Pagination or Media Count:

122.0

Abstract:

A new computational method based on the finite element approximation is applied to the kernel function formulation of the supersonic planar lifting surface theory. The method allows a linear variation in the lift distribution in each element, and can be applied to arbitrary planform. The integral equation is solved successively by collocation at the nodal points, without any matrix inversion. The starting solution and edge conditions are either prescribed or determined from the two-dimensional linearized theory. A computer program based on the present method was demonstrated on the AGARD planforms in supersonic flow. Results in the form of generalized force coefficients are tabulated and discussed.

Subject Categories:

  • Numerical Mathematics
  • Computer Programming and Software
  • Fluid Mechanics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE