News tagged with fluid
'Like a jet through solid rock': Volcanic arc fed by rapid fluid pulses
In the depths of the earth, it is anything but peaceful: large quantities of liquids carve their way through the rock as fluids, causing magma to form. A research team led by the University of Münster, ...
Space & Earth / Earth Sciences
29 minutes ago |
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Sound increases the efficiency of boiling
Scientists at the Georgia Institute of Technology achieved a 17-percent increase in boiling efficiency by using an acoustic field to enhance heat transfer. The acoustic field does this by efficiently removing vapor bubbles ...
May 24, 2012 |
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New models to predict coral bleaching
(Phys.org) -- Curtin University researchers have used computational fluid dynamics and powerful supercomputers to create new models for understanding and predicting coral bleaching.
May 17, 2012 |
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Microfluidics: Creating chaos
A quiet revolution is taking place in the fields of biology and chemistry. Microfluidic devices, which allow fluid manipulation in micro-scale channels, are slowly but surely finding their place on the lab ...
May 10, 2012 |
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The sounds of Mars and Venus are revealed for the first time
In a world first, the sounds of Mars and Venus are revealed as part of a planetarium show in Hampshire this Easter.
Space & Earth / Space Exploration
Apr 02, 2012 |
3.3 / 5 (3) |
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Study on swirls to optimize contacts between fluids
Physicists who have studied the mixing between two incompatible fluids have found that it is possible to control the undercurrents of one circulating fluid to optimise its exposure to the other. This work, which is about ...
Mar 21, 2012 |
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'Weather in a tank' demonstration helps students grasp fluid dynamics
Fluid dynamics plays a central role in determining Earth’s climate. Ocean currents and eddies stir up contents from the deep, while atmospheric winds and weather systems steer temperature and moisture around the globe. ...
Space & Earth / Earth Sciences
Mar 21, 2012 |
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Leicester partnering world sidecar champions
The Department of Engineering at the University of Leicester is collaborating with Ben and Tom Birchall, former World Sidecar Champions, to improve the performance of their F2 sidecar at this year's Isle of ...
Mar 15, 2012 |
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ORNL completes first phase of Titan supercomputer transition
Oak Ridge National Laboratory's Jaguar supercomputer has completed the first phase of an upgrade that will keep it among the most powerful scientific computing systems in the world.
Feb 29, 2012 |
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Amazing skin gives sharks a push
Shark skin has long been known to improve the fish's swimming performance by reducing drag, but now George Lauder and Johannes Oeffner from Harvard University show that in addition, the skin generates thrust, ...
Feb 09, 2012 |
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Want to understand the fluid dynamics of the oceans and atmosphere? UCLA's got the video
(PhysOrg.com) -- Oceans and clouds, even the atmosphere itself, are in constant motion and can undergo dramatic fluctuations, like hurricanes, that lead to severe consequences. If you've ever ...
Feb 02, 2012 |
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Aero-engineers debut open-source fluid dynamics design application
Each fall at technical universities across the world, a new crop of aeronautical and astronautical engineering graduate students settle in for the work that will consume them for the next several years. For many, their first ...
Jan 24, 2012 |
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OU researchers to test 'quad porosity simulation' model for shale gas reservoirs
A University of Oklahoma interdisciplinary research team will field test a newly developed 'quad porosity model' for shale gas reservoirs in the next few months. The three-year, $1.5 million project was funded by the Research ...
Jan 11, 2012 |
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Chemical measurements confirm official estimate of 2010 Deepwater Horizon oil spill rate
By combining detailed chemical measurements in the deep ocean, in the oil slick, and in the air, NOAA scientists and academic colleagues have independently estimated how fast gases and oil were leaking during ...
Jan 09, 2012 |
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Shearing triggers odd behavior in microscopic particles
(PhysOrg.com) -- Microscopic spheres form strings in surprising alignments when suspended in a viscous fluid and sheared between two plates — a finding that will affect the way scientists think about ...
Dec 23, 2011 |
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Fluid
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress, no matter how small. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids.
In common usage, "fluid" is often used as a synonym for "liquid", with no implication that gas could also be present. For example, "brake fluid" is hydraulic oil and will not perform its required function if there is gas in it. This colloquial usage of the term is also common in medicine and in nutrition ("take plenty of fluids").
Liquids form a free surface (that is, a surface not created by the container) while gases do not. The distinction between solids and fluid is not entirely obvious. The distinction is made by evaluating the viscosity of the substance. Silly Putty can be considered to behave like a solid or a fluid, depending on the time period over which it is observed. It is best described as a viscoelastic fluid. There are many examples of substances proving difficult to classify. A particularly interesting one is pitch, as demonstrated in the pitch drop experiment currently running at the University of Queensland.
For more information about Fluid, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
