Accession Number : AD0660728

Title :   PROFILING THE SUPERSONIC SECTION OF AN AXISYMMETRIC MAXIMUM THRUST NOZZLE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Sergienko,A. A. ; Sandomirskaya,I. D.

Report Date : 28 APR 1967

Pagination or Media Count : 30

Abstract : The problem of the optimum shaping of the supersonic portion of the nozzle is studied within the framework of the variational approach. Such degenerated variational problems are solved by means of the coupled variations at the different ends of the extremum curve which allow the positioning of the extremum curve through two assigned points. The basic relationships and the mathematical formulation of the problem are followed by a study of the extremum equation solution, the condition of transversality of the contour with fixed coordinate points, the presentation of the computational methods, a brief analysis of accuracy, and the presentation of the tabulated results. These show that the solution of the degenerated problem coincides with the solution obtained by means of the classical variational calculus of nondegenerate problems.

Descriptors :   (*SUPERSONIC NOZZLES, GEOMETRIC FORMS), OPTIMIZATION, SUPERSONIC FLOW, CALCULUS OF VARIATIONS, USSR

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE