Magnetohydrodynamic flow in a manifold and multiple rectangular coolant ducts of self-cooled blankets
- Argonne National Lab., IL (United States). Fusion Power Program
This paper investigates the magnetohydrodynamic flow of a liquid metal through a manifold that feeds an array of electrically coupled rectangular ducts with thin conducting walls. This geometry is typical of an inlet/outlet manifold servicing arrays of poloidal coolant channels in tokamak self-cooled blankets. The interactions parameter and Hartmann number are assumed to be large, whereas the magnetic Reynolds number is assumed to be small. Under these assumptions, which are relevant to liquid-metal flows in self-cooled tokamak blankets, viscous and inertial effects are confined to very thin boundary layers adjacent to the walls. The analysis for obtaining three-dimensional solutions outside these layers is described, and numerical solutions are presented. Electrical coupling between the column manifold and the coolant ducts, as well as coupling among the coolant ducts themselves, necessitates simultaneous solutions for the multiple channels, and uniquely determines the partition of the total flow rate among the coolant ducts. Control of flow partition that may be required for optimal cooling of the first wall and blanket is demonstrated and discussed. The pressure drop resulting from the disturbance associated with the manifold is calculated and is shown to be minimal.
- OSTI ID:
- 5182897
- Journal Information:
- Fusion Technology; (United States), Vol. 19:1; ISSN 0748-1896
- Country of Publication:
- United States
- Language:
- English
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Three-dimensional MHD (magnetohydrodynamic) flows in rectangular ducts of liquid-metal-cooled blankets
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Related Subjects
BREEDING BLANKETS
COOLING
FIRST WALL
TOKAMAK DEVICES
MAGNETOHYDRODYNAMICS
COOLANTS
LIQUID METALS
REACTOR COOLING SYSTEMS
CLOSED PLASMA DEVICES
COOLING SYSTEMS
ELEMENTS
ENERGY SYSTEMS
FLUID MECHANICS
FLUIDS
HYDRODYNAMICS
LIQUIDS
MECHANICS
METALS
REACTOR COMPONENTS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTOR WALLS
700204* - Fusion Power Plant Technology- Cooling Systems
700201 - Fusion Power Plant Technology- Blanket Engineering