Spinup or spindown of a rotating electrically conducting fluid in a magnetic field
The hydromagnetic spinup or spindown of an incompressible, rotating, electrically conducting fluid over an infinite insulated disk with an applied magnetic field is studied when the impulsive motion is imparted either to the fluid or to the disk. The nonlinear partial differential equations governing the flow are solved numerically using an implicit finite-difference scheme. It is found that the spinup (or spindown) time due to impulsive motion of the disk is much shorter than the spinup (or spindown) time due to the impulsive motion of the distant fluid. The spinup (or spindown) time for the hydromagnetic case is comparatively smaller than the corresponding nonmagnetic case. Spindown is not merely a mirror reflection of spinup.
- Research Organization:
- Department of Applied Mathematics, Indian Institute of Science, Bangalore 560012, India
- OSTI ID:
- 6660751
- Journal Information:
- Phys. Fluids; (United States), Vol. 27:7
- Country of Publication:
- United States
- Language:
- English
Similar Records
Theoretical and experimental studies of the laminar flow of an electrically conducting incompressible fluid set in motion in a restricted medium by the uniform rotation of a disk in the presence of a magnetic field
THE FINAL STAGE OF DECAY OF A LOCALIZED DISTURBANCE IN A CONDUCTING FLUID IN A UNIFORM MAGNETIC FIELD
Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
MAGNETOHYDRODYNAMICS
INCOMPRESSIBLE FLOW
ROTATION
ANGULAR VELOCITY
BOUNDARY LAYERS
ELECTRIC CONDUCTORS
ELECTRICAL INSULATORS
FINITE DIFFERENCE METHOD
FLUIDS
LAMINAR FLOW
MAGNETIC FIELDS
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
STEADY-STATE CONDITIONS
DIFFERENTIAL EQUATIONS
ELECTRICAL EQUIPMENT
EQUATIONS
EQUIPMENT
FLUID FLOW
FLUID MECHANICS
HYDRODYNAMICS
ITERATIVE METHODS
LAYERS
MECHANICS
MOTION
VELOCITY
640430* - Fluid Physics- Magnetohydrodynamics