Elsasser number

The Elsasser number, Λ, is a dimensionless number in magnetohydrodynamics that represents the ratio of magnetic forces to the Coriolis force.Template:Sfnp

$$\mathrm{\Lambda }=\frac{\sigma B^2}{\rho \mathrm{\Omega }}$$

where σ is the conductivity of the fluid, B is the magnetic field, ρ is the density of the fluid, and Ω is the rate of rotation of the body.

References

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