Wendl's Result For Physical Devices
Actual co-axial cylinder devices used to create Couette flows have both curvature and finite geometry. The latter gives rise to increased drag in the wall region. A mathematical result that accounts for both of these aspects was given only recently by Michael Wendl. His solution takes the form of an expansion of modified (hyperbolic) Bessel functions of the first kind.
Read more about this topic: Couette Flow
Famous quotes containing the words result, physical and/or devices:
“The poet sings how the blood flows in his veins. He performs his functions, and is so well that he needs such stimulus to sing only as plants put forth leaves and blossoms.... His song is a vital function like breathing, and an integral result like weight.”
—Henry David Thoreau (1817–1862)
“There are those who believe Black people possess the secret of joy and that it is this that will sustain them through any spiritual or moral or physical devastation.”
—Alice Walker (b. 1944)
“There is nothing in machinery, there is nothing in embankments and railways and iron bridges and engineering devices to oblige them to be ugly. Ugliness is the measure of imperfection.”
—H.G. (Herbert George)