Often researchers are interested in flows around and between objects, but seeing those flows is a challenge in a crowded field of view. One useful trick for this problem is Keep reading
Tag: porous flow
Chaotic Mixing in Porous Media
One of the peculiar characteristics of viscous, laminar flows is that they are reversible. Squirt dye into glycerin, stir it one way, then the opposite direction, and the dye returns Keep reading
Inside Drying Wood
Wood must dry before it can be used in most applications, but with its complex internal structure exactly how wood dries out has been unclear. New experiments combining MRI and Keep reading
Lake Stars
As snow-covered frozen lakes melt, stars appear on their surface. These lake stars form around holes in the ice where (relatively) warm water seeps up into the slush layer. The Keep reading
In Search of a Better Espresso
Of specialty coffee drinks, espresso has the most cup-to-cup variation in quality. For those who are not coffee aficionados — such as yours truly — espresso is made by forcing Keep reading
Peering Between Particles
Turbulence is not the only way to mix fluids. Even a steady, laminar flow can be an effective mixer if geometry lends a hand. Above, two dyes, fluorescein (green) and Keep reading
Watching Flow Inside Rock
Flow through porous substances has been a major interest in fluid dynamics for the last hundred years because rocks are porous. For most of that period, we’ve used Darcy’s law Keep reading