News tagged with fluid flow

Effortless sailing with fluid flow cloak

Duke engineers have already shown that they can "cloak" light and sound, making objects invisible -- now, they have demonstrated the theoretical ability to significantly increase the efficiency of ships by tricking the surrounding ...

Aug 11, 2011
4.4 / 5 (10) 19 | with audio podcast

Randomness rules in turbulent flows

It seems perfectly natural to expect that two motorists who depart from the same location and follow the same directions will end up at the same destination. But according to a Johns Hopkins University mathematical ...

Jun 01, 2011
4.5 / 5 (2) 4 | with audio podcast

Hepling the heart with math

The science of cardiovascular mathematics dates at least to the 1700s, when the pioneering Swiss mathematician Leonhard Euler developed a model for fluid dynamics while studying blood flow in arteries.

Dec 15, 2010
not rated yet 1

Smashing fluids... the physics of flow

(PhysOrg.com) -- Hit it hard and it will fracture like a solid... but tilt it slowly and it will flow like a fluid. This is the intriguing property of a type of ‘complex fluid’ which has revealed ...

Nov 29, 2010
4.6 / 5 (5) 2 | with audio podcast

Whale-inspired ocean turbine blades

Interest in developing alternative energy sources is driving the consideration of a promising technology that uses underwater turbines to convert ocean tidal flow energy into electricity.

Nov 28, 2010
4.8 / 5 (11) 3 | with audio podcast

Secrets of sharks' success

New research from the University of South Florida suggests that one of the evolutionary secrets of the shark's success hides in one of its tiniest traits -- flexible scales on the bodies of these peerless ...

Nov 24, 2010
3.7 / 5 (3) 3 | with audio podcast

Swimming microorganisms stir things up

Two separate research groups are reporting groundbreaking measurements of the fluid flow that surrounds freely swimming microorganisms. Experiments involving two common types of microbes reveal the ways that ...

Oct 11, 2010
5 / 5 (1) 0

Supercomputing on a cell phone

Many engineering disciplines rely on supercomputers to simulate complicated physical phenomena — how cracks form in building materials, for instance, or fluids flow through irregular channels. Now, researchers ...

Sep 07, 2010
4.8 / 5 (15) 1 | with audio podcast

Bladeless wind turbine inspired by Tesla

(PhysOrg.com) -- A bladeless wind turbine whose only rotating component is a turbine/driveshaft could generate power at a cost comparable to coal-fired power plants, according to its developers at Solar Aero. ...

May 07, 2010 report
4.4 / 5 (122) 30 | with audio podcast

Solving Teapot Effect

(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 ...

Nov 02, 2009 weblog
4.9 / 5 (12) 10

Slipper-shaped blood cells

Red blood cells, which make up 45 percent of blood, normally take the shape of circular cushions with a dimple on either side. But they can sometimes deform into an asymmetrical slipper shape. A team of physicists ...

Oct 26, 2009
3.7 / 5 (3) 0