High magnetic field MHD generator program. Quarterly report, October 1-December 31, 1980
Progress is reported in an experimental and theoretical program designed to investigate MHD channel phenomena which are important at high magnetic fields. The areas of research include nonuniformity effects, boundary layers, Hall field breakdown, the effects of electrode configuration and current concentrations, and studies of steady-state combustion disk and linear channels in an existing 6 Tesla magnet of small dimensions. In the study of the effects of nonuniformities and instabilities, theoretical models have been further developed and limits of applicability have been established. An improved laser doppler anemometer, which has been designed for turbulence damping and velocity profile measurements, has been tested in the M-2 facility with favorable results. The theoretical model of Hall field breakdown has been modified to include a two-dimensional insulator analysis, along with a detailed description of the plasma flow over the electrode wall. The model has the capability of predicting both insulator and plasma breakdown and has yielded good agreement with the results of breakdown experiments. The performance of electrode configurations with axial conducting fins has been examined using a three-dimensional numerical solution of the MHD electrical equations. Work progressed on the construction of the peg wall disk generator channel, and the main components of the generator test section are now assembled. Theoretical models of boundary layer effects on the insulator wall and the current discharge in the core are being developed. Data from the linear channel experiment at 5 Tesla are being analyzed and interpreted.
- Research Organization:
- Stanford Univ., CA (USA). Dept. of Mechanical Engineering
- DOE Contract Number:
- AC01-80ET15611
- OSTI ID:
- 6505958
- Report Number(s):
- DOE/ET/15611-T1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
300104* -- MHD Generators-- Duct Engineering & Fluid Dynamics
ANEMOMETERS
BOUNDARY LAYERS
BREAKDOWN
DIRECT ENERGY CONVERTERS
DISK MHD GENERATORS
DISTURBANCES
ELECTRIC FIELDS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
FLUID MECHANICS
HALL EFFECT
HYDRODYNAMICS
HYDROMAGNETIC WAVES
INSTABILITY
LAYERS
MAGNETIC FIELDS
MAGNETOACOUSTIC WAVES
MAGNETOHYDRODYNAMICS
MAGNETS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MECHANICS
MHD CHANNELS
MHD GENERATORS
PLASMA INSTABILITY
RESEARCH PROGRAMS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
TURBULENCE