Coupling between Radiation and Gas Dynamics.
Abstract
Direct heat addition of flowing gases by radiation absorption is considered. In the visible wavelength regime, the interaction between concentrated solar energy and a flowing gas is being modeled numerically. Additional analyses of laser-gasdynamic interactions are also being considered. Implicit time-iterative procedures originally developed for transonic flows are being adapted to the low Mach number, low Reynolds number regimes of interest. Two-dimensional solutions show that absorption plasmas can exist over a wide range of flow speeds and that buoyancy is a dominant factor in the forced convection flowfields. In the microwave regime, an experimental investigation of various absorption modes is underway. An overview of the microwave resonant cavity experiment and initial experimental results with nitrogen is presented. Numerical predictions of the planar and propagation plasma mode of microwave absorption in hydrogen, helium and nitrogen are also discussed. Keywords: Laser gasdynamic interaction, Microwave heating, Gases, Beamed energy, Advanced propulsion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1988
- Accession Number
- ADA194593
Entities
People
- Charles L. Merkle
- Michael M. Micci
Organizations
- Pennsylvania State University