High magnetic field MHD generator program. Quarterly report, July 1977--September 1977
As part of the study of the influence of non-uniformities on MHD generator performance a theory was evolved which treats the MHD generator as a boundary value problem with the oscillation frequency determined by the boundary oscillation (such as a combustor). The results are in good agreement with data reported in earlier reports. A laser fluorescence temperature measuring technique was developed which was tested on a bunsen burner. The technique provides for 3-dimensional spatial resolution of temperature. Further analysis of the sidewall boundary layer velocity profile data provided elucidation of turbulence damping in the boundary layer. The turbulence level was reduced by about 20 percent by the magnetic field of 2.4 tesla. Careful experiments were made to measure Joule heating effects in the electrode boundary layer. Preliminary reduction of the data showed a temperature and electron density elevation due to Joule heating. Thermal tests were made of disk generator construction techniques which utilizes metallized MgO ceramics soldered or brazed to a copper substrate.
- Research Organization:
- Stanford Univ., CA (USA). High Temperature Gasdynamics Lab.
- OSTI ID:
- 6759451
- Report Number(s):
- FE-2341-4
- Country of Publication:
- United States
- Language:
- English
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High magnetic field MHD generator program. Quarterly report, October--December 1977
High magnetic field MHD generator program. Quarterly report, October-December 1978
Related Subjects
300104* -- MHD Generators-- Duct Engineering & Fluid Dynamics
BOUNDARY LAYERS
BOUNDARY-VALUE PROBLEMS
DIRECT ENERGY CONVERTERS
ELECTRODES
ELECTRON DENSITY
HALL EFFECT
HEATING
INSTABILITY
JOULE HEATING
LASERS
LAYERS
MATHEMATICAL MODELS
MHD CHANNELS
MHD GENERATORS
OSCILLATIONS
PLASMA DIAGNOSTICS
PLASMA HEATING
PLASMA INSTABILITY
RESOLUTION
SPATIAL RESOLUTION
TEMPERATURE MEASUREMENT
TEST FACILITIES
TURBULENCE