Cold Flow Diluent Mixing Study Using Radial High Density Ratio Jets into a Circular Freestream
Abstract
Project Themis is a recently created Air Force Research Laboratory (AFRL) research program that seeks to bridge the gap from lab-scale to full-scale testing and aid in developing engine technologies to a technology readiness level (TRL) of 4, so that they may be transitioned to current or future engine programs. Project Themis is named after the Greek goddess Themis, which means "law of nature". The goal is to research technologies associated with combustion devices using hydrocarbon fuel that support increased engine life, performance, and thrust-to-weight ratio. Preliminary literature search results show three areas that need further investigation. These are 1) the effect of injector type and chamber geometry on the main chamber performance and heat transfer, 2) the use of transpiration cooling for main chamber life, and 3) improvements on preburner temperature uniformity at the exit. Project Themis seeks to increase the understanding of impact of design variations in the diluent mixing at supercritical conditions especially in a 3D environment. The configuration of interest is jets injected transversely into a crossflow in a circular duct. Themis plans an experiment to study supercritical mixing in addition to the computational modeling efforts. The objective of the Advatech support effort is to use computational results to provide insight into the behavior of supercritical jets injected transversely into a crossflow in a circular duct.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2010
- Accession Number
- ADA527279
Entities
People
- Anh-tuan Le
- Ian Donovan
- Nils Sedano
- Robert Bernstein