Accession Number:

AD0724615

Title:

Design of Maximum Thrust Plug Nozzles for Fixed Inlet Geometry,

Descriptive Note:

Corporate Author:

PURDUE UNIV LAFAYETTE IND

Report Date:

1971-01-01

Pagination or Media Count:

10.0

Abstract:

The calculus of variations is used to obtain and design equations for the contour of maximum thrust plug nozzles with a fixed inlet geometry and a specified geometric constraint. The optimum values of the injection angle at the throat and the cowl lip radius are determined by a parametric study. The analysis is carried out for irrotational flow and includes boundary layer effects. A method is presented to determine if a given contour is an optimum, and a relaxation technique is used to obtain a solution to the resulting design equations. Numerical examples are presented for a fixed plug length and mass flow rate. Author

Subject Categories:

  • Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE