The Magnetic Reynolds number is a dimensionless group that occurs in magnetohydrodynamics. It gives an estimate of the effects of magnetic advection to magnetic diffusion, and is typically defined by:
where
- is a typical velocity scale of the flow
- is a typical length scale of the flow
- is the magnetic diffusivity
Read more about Magnetic Reynolds Number: General Characteristics For Large and Small, Relationship To The Reynolds Number and Péclet Number
Famous quotes containing the words magnetic, reynolds and/or number:
“We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.”
—Henry David Thoreau (1817–1862)
“My dear dear Mother,
If you don’t let me come home I die—I am all over ink,
and my fine clothes have been spoilt—I have been tost in a blanket, and seen a ghost.
I remain, my dear dear Mother,
Your dutiful and most unhappy son,
Freddy.
P.S. Remember me to my Father.”
—Frederick Reynolds (18th century)
“At thirty years a woman asks her lover to give her back the esteem she has forfeited for his sake; she lives only for him, her thoughts are full of his future, he must have a great career, she bids him make it glorious; she can obey, entreat, command, humble herself, or rise in pride; times without number she brings comfort when a young girl can only make moan.”
—Honoré De Balzac (1799–1850)