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Fluid

Space

NASA seeks to understand vision changes due to microgravity

Having evolved under the pressure of Earth's gravity, it isn't surprising that our bodies experience adverse physiological affects after long periods in low-Earth orbit. NASA hopes that a new experiment, the Fluid Shifts investigation, set to launch to the ISS later this year, will shed light on the causes of vision loss and deformation of the structure to the eye often suffered by astronauts over the course of a stay aboard the ISS.Read More

Science

Proposed 'fluid flow cloak' might greatly reduce ships' hydrodynamic drag

North Carolina’s Duke University has been grabbing some headlines over the past few years, due to research carried out there involving the use of metamaterials for creating functioning invisibility cloaks. Just this month, Duke researchers announced that they had developed another such material that could be used to manipulate the frequency and direction of light at will, for use in optical switching. Now, Duke’s Prof. Yaroslav Urzhumov has proposed that metamaterials could also be used to drastically reduce the drag on ships’ hulls, “by tricking the surrounding water into staying still.”Read More

Science

Scientists shake up fluid dynamics of wet dogs

What does a labrador and a clothes washer have in common? Not much you might say. Think again. A team of researchers from the Georgia Institute of Technology, Atlanta, have unlocked the secrets behind how animals such as dogs, mice and even brown bears dry themselves and the key is all in the spin cycle. Much like your household washing machine these animals use resonant frequencies to shed water and given the results of their research, graduate student Andrew Dickerson and his advisor, professor David Hu, are now looking at how they can apply their results.Read More

Automotive

EVs to get improved mileage from redox flow batteries

German researchers say a new type of electric vehicle battery that runs on electrolyte fluid can be recharged as easily as refilling a petrol tank. When the redox flow rechargeable batteries are low, the discharged electrolyte fluid can simply be exchanged at the gas station for recharged fluid.Read More

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