Theoretical Shock-Layer Plasma Flow Properties for the Slender Probe and Comparison with the Flight Results
Abstract
The VHF attenuation measured at two locations on the body during flight at 17,700 ft/sec is compared to theoretical values computed on the basis of equilibrium, nonequilibrium, inviscid- and viscous-flow models. The shock- layer plasma-flow computational procedure included modification of the inviscid- flow properties near the body surface for the effects due to boundary-layer flow, and application of nonequilibrium concepts to the flow along streamlines. Attenuation is computed on the basis of plane-wave transmission at normal incidence through a nonuniform Plasma layer. Comparison of the resulting theoretical attenuations with the flight measurements clearly points up the importance of the non-equilibrium and viscous-flow aspects of the plasma-sheath flow. Also discussed are some aspects of the wave-plasma transmission model used.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 12, 1962
- Accession Number
- ADB193541
Entities
People
- John S. Evans
- Paul W. Huber
Organizations
- Langley Research Center