New ball to showcase talent in World Cup

Jun 05, 2014 by Robyn Mills

University of Adelaide physics experts believe the new soccer ball created for the 2014 FIFA World Cup starting next week is a "keepers' ball".

The new , called Brazuca, should be much more predictable than the 2010 World Cup ball, Jabulani, which was less-than-affectionately labelled a 'beach ball' because of its sometimes erratic flight path.

"The Brazuca has very deep grooves – it's much rougher than Jabulani – and this creates a different pattern of around the ball," says Professor Derek Leinweber, Professor of Physics in the University's School of Chemistry and Physics. He has previously written about and lectured on the aerodynamics of cricket balls, golf balls and earlier World Cup soccer balls.

"The Jabulani was much smoother than the Brazuca with smaller grooves and ridges across its surface," says Professor Leinweber. "That meant the ball had to be moving much faster before the airflow around the ball changed from smooth to turbulent. As this shift to turbulent airflow occurred at high speeds, the ball could make some pretty erratic movements on the way to the net.

"In contrast the Brazuca, with its deeper grooves, hits that turbulent air flow at a lower speed with the result that the ball is much more predictable. In many ways, it's a return to the aerodynamics of the old 32-panel ball."

This video is not supported by your browser at this time.

Professor Leinweber and PhD candidate Adrian Kiratidis have been investigating the likely performance of the new ball by matching up the of air flow with available wind tunnel data and video of the ball's movement.

Mr Kiratidis says he believes players taking hard and fast shots in this World Cup won't find the Brazuca as easy to bend into the net as they did with the Jabulani.

"Keepers facing players of the calibre of Messi, Cristiano Ronaldo or Neymar are going to be glad that it's Brazuca coming at them rather than Jabulani," he says.

Explore further: Physicists test aerodynamics of soccer ball types prior to World Cup (w/ Video)

add to favorites email to friend print save as pdf

Related Stories

How will the 2014 World Cup ball swerve?

Mar 05, 2014

There are now only a few months to go until the biggest sporting event of 2014 – the FIFA World Cup in Brazil – and questions are being asked. Will the stadiums be ready? Are the airports ready for the crowds? ...

Recommended for you

Ig Nobel winner: Using pork to stop nosebleeds

5 minutes ago

There's some truth to the effectiveness of folk remedies and old wives' tales when it comes to serious medical issues, according to findings by a team from Detroit Medical Center.

History books spark latest Texas classroom battle

Sep 16, 2014

As Texas mulls new history textbooks for its 5-plus million public school students, some academics are decrying lessons they say exaggerate the influence of Christian values on America's Founding Fathers.

Flatow, 'Science Friday' settle claims over grant

Sep 16, 2014

Federal prosecutors say radio host Ira Flatow and his "Science Friday" show that airs on many National Public Radio stations have settled civil claims that they misused money from a nearly $1 million federal ...

User comments : 0