Coaxial Jets Subjected to External Acoustics
Abstract
Modern rockets operate at supercritical pressures with respect to propellants. There is a need to understand mixing and combustion beyond liquid and gas states. Shear coaxial injectors are a common choice for cryogenic liquid rocket engines. Interactions of transverse acoustics with an injector's own modes and mixing need to be understood in terms of combustion instability. There is a need to understand the differences in response to pressure and velocity nodes. There is a need to understand what non-dimensional numbers capture the mixing of typical injectors, and to characterize how geometry affects mixing. In this presentation, relevant physics of shear coaxial jets are explored; highlights from literature review are listed; and experimental set-ups are described.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 20, 2011
- Accession Number
- ADA554882
Entities
People
- Ann Karagozian
- Douglas G. Talley
- Ivett Leyva
- Jeff Graham
- Juan Rodriguez
- Sophonias Teshome
Organizations
- Air Force Research Laboratory