Accession Number : AD0737859

Title :   Finite Amplitude Waves on Aircraft Trailing Vortices.

Descriptive Note : Scientific rept.,

Corporate Author : CALIFORNIA INST OF TECH PASADENA DEPT OF APPLIED MATHEMATICS

Personal Author(s) : Moore, D. W.

Report Date : OCT 1971

Pagination or Media Count : 27

Abstract : Numerical methods are used to study the growth of waves of finite amplitude on a pair of parallel infinite vortices. The vortices are treated as lines except where the detailed structure of the core is needed to remove consistently the singularity in the line integrals for the velocities of the vortices. It is shown that the vortices eventually touch and the shape of the wave at this instant is calculated. Wave distortion and gross properties are related to linear theory.

Descriptors :   *JET AIRCRAFT, *VORTICES, WAKE, AVIATION SAFETY, WAVE PROPAGATION, NUMERICAL ANALYSIS, LINEAR SYSTEMS, THEORY, MATHEMATICAL MODELS, PERIODIC VARIATIONS.

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE