The Effects of Channel Size on the Ionization Instability in MHD Generators,
Abstract
An experimental and theoretical study of the ionization instability in nonequilibrium, continuous-electrode MHD generators is presented. A linear-perturbation analysis was performed on a set of equations describing the free electrons and consisting of Ohm's law, the electron energy equation, the Saha equation, Maxwell's relations, and the boundary conditions suitable for continuous electrodes. Essential to the analysis is the retention of the radiation and heat conduction terms of the energy equation. The inclusion of the boundary conditions and the wavelength dependent terms (radiation and conduction) in the energy equation allow the prediction of the critical Hall parameter for various modes of the instability and the prediction of the wavelength having the largest growth rate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1971
- Accession Number
- AD0734786
Entities
People
- Robert Michael Evans
Organizations
- Stanford University