Fluid dynamics
hideIn physics, fluid dynamics is a sub-discipline of fluid mechanics that deals with fluid flow—the natural science of fluids (liquids and gases) in motion. It has several subdisciplines itself, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). Fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space and reportedly modeling fission weapon detonation. Some of its principles are even used in traffic engineering, where traffic is treated as a continuous fluid.
Fluid dynamics offers a systematic structure that underlies these practical disciplines, that embraces empirical and semi-empirical laws derived from flow measurement and used to solve practical problems. The solution to a fluid dynamics problem typically involves calculating various properties of the fluid, such as velocity, pressure, density, and temperature, as functions of space and time.
Historically, hydrodynamics meant something different than it does today. Before the twentieth century, hydrodynamics was synonymous with fluid dynamics. This is still reflected in names of some fluid dynamics topics, like magnetohydrodynamics and hydrodynamic stability—both also applicable in, as well as being applied to, gases.
For more information about Fluid dynamics, read the full article at
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News tagged with fluid dynamics
Solving Teapot Effect
Nov 02, 2009 |
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(PhysOrg.com) -- A team of scientists from France have worked out why teapots dribble at low flow rates, and how to stop them. The effect is called the "teapot effect", and solving it could finally put an ...
For safer emergencies, give your power generator some space (w/ Video)
Oct 06, 2009 |
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To subdue the steaming heat of hurricanes or to thaw out during a blizzard, gasoline-powered, portable generators are a lifeline during weather emergencies when homes are cut off without electricity. But these generators ...
Fluid Dynamics Research to Make Peeing in Space More Comfortable and Sanitary (w/Video)
Jun 02, 2009 |
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(PhysOrg.com) -- Engineering students at UC San Diego are studying the fluid dynamics of water in order to build a more comfortable and sanitary urine collection device for space travel.
Mathematicians provide new insight into tsunamis
Apr 01, 2009 |
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A new mathematical formula that could be used to give advance warning of where a tsunami is likely to hit and how destructive it will be has been worked out by scientists at Newcastle University.
Engineer devises ways to improve gas mileage
Mar 16, 2009 |
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(PhysOrg.com) -- Last summer, it was very expensive to fill up a gas tank when the gasoline price hit close to four dollars a gallon. Transportation by road or air consumes fuel, which not only increases our vulnerability ...
Model predicts how to build a better stent
Jan 06, 2009 |
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(PhysOrg.com) -- Researchers have been puzzled in recent years by observations that drug-releasing stents (mesh-like tubes implanted to hold patients' coronary arteries open) can increase the likelihood of blood clots and ...
