Development and Implementation of a Scramjet Cycle Analysis Code with a Finite-Rate-Chemistry Combustion Model for Use on a Personal Computer

Author

Clarence F. Chenault

Date of Award

12-1993

Document Type

Thesis

Degree Name

Master of Science in Aeronautical Engineering

Department

Department of Aeronautics and Astronautics

First Advisor

John H. Doty, PhD

Abstract

This study compared the performance of an equilibrium combustion model to a finite-rate-chemistry combustion model for a fixed geometry Scramjet flying at the flight conditions of Mach 12, 15, and 18 with a constant dynamic pressure of 50,000 Pa. An integrated PC-based code, developed specifically for this study, models the combustor as an equilibrium combustion process or as finite-rate-chemistry combustion process. This integrated program is based on two existing programs, Ramjet Performance Analysis (RJPA) and 3 STREAM. The effects of mixing schedule, combustor length, and combustor exit area were investigated. The results of this study indicate that inefficient mixing is the primary cause of Scramjet performance loss regardless of the flight speed. Combustor length and combustor exit area also had a strong impact on performance.

AFIT Designator

AFIT-GAE-ENY-93D-7

DTIC Accession Number

ADA273834

Comments

The author's Vita page is omitted.

Recommended Citation

Chenault, Clarence F., "Development and Implementation of a Scramjet Cycle Analysis Code with a Finite-Rate-Chemistry Combustion Model for Use on a Personal Computer" (1993). Theses and Dissertations. 6618.
https://scholar.afit.edu/etd/6618