Ramjet Research. AFOSR Task 2308BW
Abstract
This research task includes work in three primary focus areas: (1) multiphase flows relevant to fuel injection into very high-speed, oxidizing streams, (2) shock - boundary interactions within reactive media, and (3) multidisciplinary laser measurements for benchmarking modeling and simulation of high-speed, reacting flows. Within each of these areas there is a strong relevance to the scramjet propulsion system, and that relationship helps frame the context of our research. The focus of this abstract will be on the shock - boundary layer interactions in and around a recess in the walls that confine the supersonic core flow. A flow recess, or cavity, is an essential element of a scramjet flameholder. Its interaction with the core flow and the method of introducing fuel and in sustaining a stable, combustible mixture within the cavity are the subject of our research in this area. A joint computational-experimental study has revealed the cavity to be difficult to fuel uniformly in space and that the interchange with the core flow varies substantially in time.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 19, 2001
- Accession Number
- ADP012094
Entities
People
- Mark R. Gruber
- Thomas A. Jackson
Organizations
- Air Force Research Laboratory