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The event, which took place from 19th to 23th January 2015, was organized by CMM and the Doctorate Program on Fluid Dynamics. It gathered students who aim to enroll in this postgraduate degree.
It was an intense week focused on experimental systems outside of equilibrium, waves turbulences, inverse problems in fluid mechanics, or internal waves in stratified water bodies.
Scene width: about 1.5 feet (45 cm). Water flowed from left to right.
Photographed at the parking lot overlooking the uranium tailings pile at Moab, Utah.
Morning view west over a small inlet at West Bar, Washington. The water is the Columbia River. Here's the same view in the evening.
West Bar is described at the collection level.
Looking downstream at Winter Camp Wash, a stream in Arches National Park. The attractive ripples in the sand belie the damage done here a few days earlier: the park road where I am standing was buried under about two feet of sand . That burial was caused by unusually heavy---and perhaps record-setting---rain in October 2006. By the time I took this picture, the sand had been bulldozed off the road. The vegetation on both sides of the wash is primarily---if not exclusively---tamarisk (salt cedar).
Nearby Delicate Arch Trail was also affected: its bridge over Salt Wash was damaged, stranding some hikers on its far side (they were rescued). Winter Camp Wash crosses the park road between the trailhead for the Delicate Arch Trail and the one for the Delicate Arch Viewpoint.
Tine terraces are created as the hot water flows down the slope. And then they grow..
See the next up picture.
Splashes in fluid mechanics are characterised by two dimensionless variables: The Reynolds number and Weber number.
The Reynolds number gives a ratio of inertial to viscous forces in the fluid, quantifying the relative importance of these forces in the flow of a particular fluid under particular conditions. High Reynolds numbers give rise to freely moving airborne droplets, like the ones above.
Weber numbers compare a fluid's inertia to its surface tension. It is useful in studying the formation of droplets and bubbles. A high Weber number gives rise to intricate, aspherical droplets, hence the above picture shows that the coloured milk has a low Weber number.
God bless Wikipedia =)
The event, which took place from 19th to 23th January 2015, was organized by CMM and the Doctorate Program on Fluid Dynamics. It gathered students who aim to enroll in this postgraduate degree.
It was an intense week focused on experimental systems outside of equilibrium, waves turbulences, inverse problems in fluid mechanics, or internal waves in stratified water bodies.
Inside the diffuser section of the16-foot supersonic wind tunnel at Arnold Air Force Base, Tennessee. Air that has been pushed through the section seen has passed through progressively narrowing tunnel sections and 90-degree turns that lead to the test section. The PWT test section is as tall as a two-story house and as heavy as a railroad locomotive. The inside of the test section is 16' tall. They are positioned just behind a 40 feet long variable venturi, side walls that have hydraulic pistons to push the two flexible 16 foot tall by 40 foot long wall toward each other or apart to adjust the air speed and maintain smooth air flow into the test section. The facility is devoted to aerodynamic and propulsion integration testing of large-scale aircraft models.
Albemarle (?) table: non-Newtonian fluids. Mix cornstarch with water to make a dilatant (shear-thickening) fluid.
The event, which took place from 19th to 23th January 2015, was organized by CMM and the Doctorate Program on Fluid Dynamics. It gathered students who aim to enroll in this postgraduate degree.
It was an intense week focused on experimental systems outside of equilibrium, waves turbulences, inverse problems in fluid mechanics, or internal waves in stratified water bodies.
Small wash draining onto the Bonneville Salt Flats.
Water flowed from left to right.
Width of scene is about 4 feet (1.2m).
Small wash draining onto the Bonneville Salt Flats.
Water flowed from left to right.
Width of scene is about 3 feet (0.9m).
Seen at the east edge of West Bar along the Columbia River in Washington State. Note the lack of ripples at right, on the leeward side of the vegetation.
Photographed during a trip with Flickr member brewbooks to West Bar, Washington, site of huge ripples caused by the Ice Age floods.