magnetic Reynolds number


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magnetic Reynolds number

[mag′ned·ik ′ren·əlz ‚nəm·bər]
(plasma physics)
A dimensionless number used to compare the transport of magnetic lines of force in a conducting fluid to the leakage of such lines from the fluid, equal to a characteristic length of the fluid times the fluid velocity, divided by the magnetic diffusivity. Symbolized RM .
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The induced magnetic field is neglected under the assumption of a small magnetic Reynolds number.
Russian physicists Zel'dovich (1914-87) and Ruzmaikin discuss some topics in hydromagnetic dynamo theory in the astrophysical context of large magnetic Reynolds number, define criteria for field generation in a state of near-complete freezing-in, and offer an account of certain qualitative aspects of a turbulent dynamo operating through non-uniform rotation of a conducting medium subject to random motions with helicity.
The magnetic Reynolds number is small and the induced magnetic field is negligible.
We will assume that the magnetic Reynolds number for the flow is small so that the induced magnetic field can be neglected.
The topics include a posteriori error estimation via nonlinear error transport with application to shallow water, enforcing discrete mass conservation in incompressible flow simulations with continuous velocity approximation, the stability of partitioned methods for magnetohydrodynamic flows at small magnetic Reynolds number, an immersed finite element method of lines for moving interface problems with non-homogeneous flux jumps, and full Eulerian modeling and effective numerical studies for the dynamic fluid-structure interaction problem.
A low magnetic Reynolds number means that the dynamo is weak and could soon dissipate.
The magnetic field B0 is applied perpendicular to the stretching sheet and the effect of the induced magnetic field is neglected since the magnetic Reynolds number is assumed to be small and have constant physical properties.
The magnetic Reynolds number is assumed to be small so that the induced magnetic field can be neglected and a constant magnetic field
Assuming that the magnetic Reynolds number to be small, we neglect the induced magnetic field in comparison with the applied magnetic field.
The magnetic Reynolds number is assumed to be small which implies that the induced magnetic field can be neglected compared to the applied magnetic field.
The magnetic Reynolds number is so small that the induced magnetic field can be neglected.
They demonstrated that the rate of dipole moment decay is weakly sensitive to the particular mixing flow pattern, but varies with the magnetic Reynolds number, a measure of the velocity of the flow.

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