Survey of measurements of flow properties in arc jets
Abstract
This paper reviews techniques for determining flow properties in low density arc jets used for materials and structures testing. Properties measured include flow total enthalpy, pressures, heat fluxes, static temperatures, electron density, species concentrations, and flow velocity. The probe techniques covered are pressure, heat flux, electrostatic, and mass sampling. Nonintrusive techniques include emission spectroscopy, laser-induced fluorescence, laser Thomson scattering, and Raman scattering. It is concluded that several techniques must be used in a single facility to obtain all of the flow field properties necessary to predict heat fluxes in a nonequilibrium expansion.
- Publication:
-
AIAA and ASME, 5th Joint Thermophysics and Heat Transfer Conference
- Pub Date:
- June 1990
- Bibcode:
- 1990jtht.confS....S
- Keywords:
-
- Flow Characteristics;
- Flow Measurement;
- Flowmeters;
- Heat Flux;
- Jet Flow;
- Low Density Flow;
- Electron Density (Concentration);
- Enthalpy;
- Flow Velocity;
- Laser Induced Fluorescence;
- Pressure Distribution;
- Temperature Distribution;
- Thomson Scattering;
- Instrumentation and Photography