Accession Number:

ADA399718

Title:

Dynamic Computational Analyses of Complete Scramjet Engine Modules

Descriptive Note:

Rept. for 1 Feb 1998-30 Sep 2001

Corporate Author:

NORTH CAROLINA STATE UNIV AT RALEIGH DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s):

• McRae, D. S.
• Edwards, Jack R.

Report Date:

2001-09-01

Pagination or Media Count:

11.0

Abstract:

The research performed during this period has produced and demonstrated all of the required codes, algorithms and technology needed to analyze dynamically scramjet propulsion modules, both singly and ganged. Cold-flow unstart of a generic hydrocarbon-fuel configuration tested at NASA langley due to nozzle backpressure and angle of attack change have been obtained and animated for analysis. An inlet isolator combuster hydrogen fueled configuration tested at the National Aerospace Laboratory in Japan has been simulated synamically and analysed to determine the cause of flow path destabililzation. Finally, an algorithm to allow dynamic adaptation of adjacent blocks has been developed to allow resolution of all of the physics while maintaining conservation between blocks. The codes have not yet been integrated. Follow-on funding will be sought to do so.

Descriptors:

• *RAMJET ENGINES
• ALGORITHMS
• ANGLE OF ATTACK
• JAPAN
• FLOW FIELDS
• MATHEMATICAL ANALYSIS
• NUMERICAL METHODS AND PROCEDURES
• SUPERSONIC COMBUSTION RAMJET ENGINES
• HYPERSONIC AIRCRAFT
• PROPULSION SYSTEM COMPONENTS

Subject Categories:

• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE