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Aerodynamics

Aircraft

Airbus extends widebody aircraft family with A330neo

Airbus has announced the launch of the A330-800neo and the A330-900neo, which are the latest variants of the A330 two-engined widebody airliner that entered service in 1994. Airbus says that the A300neo aircraft use the new Rolls-Royce Trent 7000 engine and are the most cost-efficient wide-body aircraft on the market with 14 percent better fuel consumption per passenger seat compared to today's A330.Read More

Science

Smart morphing surfaces minimize drag at all speeds

Researchers at MIT have developed a smart curved surface that can morph at will to reduce drag, generating a series of small, evenly spaced dimples that make it resemble the outside of a golf ball. This technology could be used to reduce hurricane damage on some public buildings, as well as increase the aerodynamic and fuel efficiency in cars.Read More

Science

The surprising aerodynamics behind the Brazuca World Cup football

Under the guise of World Cup fever, scientists across the globe are seizing the opportunity to examine the aerodynamic properties of what will in all likelihood be the most talked-about object on a global scale over the coming weeks, the 2014 World Cup match ball. The ball, lovingly named Brazuca by the Brazilian people, is the product of a significant amount of research and money aimed at creating the ultimate centerpiece for one of the greatest sporting competitions on Earth. Read More

Aircraft

Shape-changing wings inspire more efficient aircraft designs

We tend to think of aeronautical engineering as having left the birds standing still sometime around the First World War, but since jet fighters can’t perch and quadcopters can’t snag salmon out of a stream, we still have a few things to learn. Taking a couple of pages from the avian playbook, Fraunhofer Institute for Electronic Nano Systems (ENAS) and its partners are developing wing flaps for airplanes that change shape like a bird’s wing for greater efficiency.Read More

Aircraft

Aerion's AS2 supersonic business jet gets extra engine and cabin space

Aerion Corporation has upped the cabin size and added an extra engine to the first in its planned range of supersonic business jets currently on the drawing board. Designed with Supersonic Natural Laminar Flow (SNLF) wing technology that was tested in transonic wind tunnel tests and in NASA flight trials, the Aerion AS2 will now use a set of three smaller jet engines in place of its previous large two-jet design to provide quieter running, improved take-off performance, and longer range.Read More

Bicycles

University of Liverpool team aims to hit 90 mph in pedal-powered Arion1 Velocipede

Last September, at the World Human Powered Speed Challenge at Battle Mountain in Nevada, a Dutch team made up of students from TU Delft and VU Amsterdam set the current world speed record of 83.13 mph (133.78 km/h) for an unpaced cyclist on flat ground in the VeloX3. The University of Liverpool Velocipede Team (ULVT) has now announced its intentions to take the title with the Arion1 Velocipede, a bicycle resembling an oversized medicine capsule that has been left out in the sun too long.Read More

Bicycles

Upper Wheel Fairings are designed to give bicycle wind resistance the slip

If you were designing a vehicle to be as aerodynamic as possible, it would definitely be counterproductive if parts of that vehicle actually moved into the oncoming wind. According to Los Angeles-based engineer Garth Magee, however, that's just what the forward-turning top sections of bicycle wheels do. His solution? Upper Wheel Fairings, which shield the spokes from the breeze. He claims that cyclists using his fairings can go up to 20 percent faster without any extra effort. Read More

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