Accession Number:

ADA409832

Title:

Three-Dimensional Simulations of a Gas/Gas, Hydrogen/Oxygen Engine

Descriptive Note:

Abstract

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA SPACE AND MISSILE PROPULSION DIV

Personal Author(s):

Report Date:

2002-11-01

Pagination or Media Count:

8.0

Abstract:

The overall objective of this research is to establish a design methodology for gasgas injectors. This paper, however, focuses on a computational methodology to efficiently, accurately, and robustly obtain high- fidelity solutions of combusting rocket engine flows to gain a knowledge and understanding of their features. To that end, simulations of a single-element, shear-coaxial, H2O2 engine are being performed to characterize its flowfield and to validate the CFD flow solver for this class of problems. Previous work has focused on obtaining solutions on a grid three to four times finer than those reported by other researchers and resolving numerical issues that reduce the computational efficiency of this inherently unsteady flow. Comparisons of steady and averaged time-accurate solutions have also shown that a steady solution may not provide an accurate depiction of the combusting flow field over time.

Subject Categories:

  • Fluid Mechanics
  • Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE