Modeling of Radiation from High Temperature Chemically Reacting Flows
Abstract
The interaction of a jet from a 60-lbf thruster positioned on the side of a small rocket, using the direct simulation Monte Carlo method (DSMC) was applied to model the three-dimensional jet-atmosphere interaction. Chemical reactions between free stream and plume species were included in the simulations. Altitudes of 80 to 160^km and velocities of 3, 5 and 8 km/sec were considered. Chemical reactions between free stream and plume species were included in the simulations. Both uniform and non-uniform conditions were used at the thruster exit. A Navier-Stokes solver was used to calculate flow inside the thruster and in the near field of the plume. A two-stage DSMC numerical strategy was then used to calculate the plume, with sequential computations of an axisymmetric plume coreflow and three-dimensional plume-freestream interaction. The impact of rocket velocity and altitude on the plume-atmospheric interaction in terms of species produced by chemical reactions that can contribute to UV and MWIR radiation was examined. The UV radiation due to the NO and OH species has been computed and is sufficiently high such that an imager filtered to the 250 and 310 nm pass bands would be able to detect this radiation. These methodology is now being applied to generic cases related to the Miniaturized Kill Vehicle (MKV).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 28, 2002
- Accession Number
- ADA413685
Entities
People
- Alima Alexeenko
- Craig Benson
- Deborah A. Levin
- Robert Collins
- Sergey Gimelshein
Organizations
- Pennsylvania State University