Photo Release -- Tsukuba University's Professor Asai Uses Exa PowerFLOW Simulations to Prove Adidas Brazuca FIFA World Cup

Photo Release -- Tsukuba University's Professor Asai Uses Exa PowerFLOW
Simulations to Prove Adidas Brazuca FIFA World Cup Soccer Ball More
Aerodynamically Stable

BURLINGTON, Mass. and YOKOHAMA, Japan, July 1, 2014 (GLOBE NEWSWIRE) -- Exa
Japan, a subsidiary of Exa^® Corporation (Nasdaq:EXA), a simulation solutions
provider for product engineering, announced that Tsukuba University Professor
Takeshi Asai, chose Exa PowerFLOW^® to analyze the aerodynamic performance of
the new Adidas^® Brazuca^®, the official match ball of the FIFA^® 2014 World

Exa PowerFLOW
 Tsukuba University aerodynamic
 simulation of FIFA World Cup match ball
 using Exa PowerFLOW

A photo accompanying this release is available at

Every World Cup, the official soccer match ball is re-engineered. In 2010, the
FIFA World Cup match ball, the Adidas Jabulani^®, was reported to suddenly and
dramatically swerve before goalkeepers — a characteristic unwelcomed by fans
and players alike. This year the goal was to improve the ball by making it as
close to a perfect sphere as possible. This newly engineered shape allows for
easy ball manipulation by the players, but it was also critical for it to have
superior aerodynamic performance.

Prof. Asai, a Comprehensive Human Science Professor at Tsukuba University in
Japan, studied the aerodynamic characteristics of the new 2014 FIFA World Cup
official ball, the Brazuca, and released results of the comparison between the
Jabulani and the Brazuca prior to the World Cup. According to Prof. Asai, the
new Brazuca match ball is more aerodynamically stable than the Jabulani due to
the reduced number of patches on the ball, resulting in longer and deeper ball
seams. These have a favorable impact on the airflow around the ball reducing
the overall drag. The new design results in the airflow around the ball
changing from laminar (streamlined) to turbulent earlier, and at lower speeds,
enabling the Brazuca ball to fly though the air with more stability.

Prof. Asai first attempted to observe the aerodynamic performance in a
conventional wind tunnel. However, due to the extreme detail required to
properly evaluate the differences, the test was insufficient. Prof. Asai then
chose to run simulations using Exa PowerFLOW. "In order to understand the
flying behavior of high speed sport balls, it is known that visualization and
understanding of the boundary layer - the thin region of air close to the
ball's surface - would be the key. However, it is very difficult to capture
this using conventional methods. The lattice Boltzmann-based technology in
PowerFLOW made it possible to capture the boundary layer turbulence that
conventional methods could not. It is expected that PowerFLOW will open the
door to new era of sport ball computational fluid dynamics (CFD)," Prof. Asai

His study and simulations are still continuing and Prof Asai plans to publish
his final results later this year.

About Exa Corporation

Exa Corporation develops, sells and supports simulation software and services
to enhance product performance, reduce product development costs and improve
the efficiency of design and engineering processes. Our simulation solutions
enable our customers to gain crucial insights about design performance early
in the design cycle, thus reducing the likelihood of expensive redesigns and
late-stage engineering changes. As a result, our customers realize significant
cost savings and fundamental improvements in their engineering development
process. Our products include, PowerFLOW^®, PowerDELTA^®with PowerCLAY^®,
PowerVIZ^®, PowerSPECTRUM^®, PowerACOUSTICS^®, PowerINSIGHT^®, PowerCOOL^® and
PowerTHERM^® along with professional engineering consulting services. A
partial customer list includes: BMW, Ford, Hyundai, Jaguar Land Rover,
Kenworth, MAN, Nissan, Peterbilt, Renault, Scania, Toyota, Volkswagen, and
Volvo Trucks.

Founded in 1991, the company is headquartered at 55 Network Drive, Burlington,
MA, USA 01803. Tel: 1.781.564.0200; Fax: 1.781.564.0299; Email:;

Exa, PowerFLOW, PowerCLAY, PowerTHERM, PowerCOOL, PowerSPECTRUM, PowerDELTA,
PowerVIZ, PowerACOUSTICS and PowerINSIGHT are registered trademarks of Exa
Corporation. Adidas, Brazuca and Jabulani are registered trademarks of Adidas.
World Cup is a trademark and FIFA is a registered trademark of FIFA.

CONTACT: For more information about Exa Corporation or
         images please contact:
         Michelle Murray-Ross, Exa Corporation,

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