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Clarkson University May Grad Wins AIAA Abe Zarem Award

[A photograph for media use is available at ]

Joshua D. Butler of Watkins Glen, N.Y., who received his master of science degree in mechanical engineering from Clarkson University in May, has been awarded the American Institute of Clarkson University May Grad Wins AIAA Abe Zarem AwardAeronautics and Astronautics (AIAA) Abe M. Zarem Award for Distinguished Achievement, for his paper "A Study of Shear Layer Sub-Structures in Leading Edge Vortices Using Laser Doppler Velocimetry."

As a recipient of this award, he will attend the 26th International Council of Aeronautical Sciences Congress in Anchorage, Alaska in September to present his work. He will also be honored at the annual Aerospace Sciences Meeting (ASM) next January in Orlando, Fla.

Butler’s research focused on wind tunnel measurements of the airflow around highly swept triangular or "delta" wings. His study, using a technique called Laser Doppler Velocimetry involving non-intrusive laser beams to measure the speed, determined that the strength of the large rotational vortex structures above the wing increase the axial turbulence intensity and may be the trigger to cause "vortex breakdown," eventually stalling the wing.

The identified master’s level winner in each area, one in aeronautics and one in astronautics, each receives a distinctive medal and a certificate as recognition of their technical excellence at the national AIAA Aerospace Sciences Meeting (ASM). Additionally, the student receives a travel stipend to present his/her work at the established biennial International Conference of the Aeronautical Sciences (ICAS). Airfare and lodging expenses for the ASM trip and the ICAS/IAC trip are funded through the endowment.

The technical work of the winners will also be submitted for publication in the professional media of aeronautics and astronautics, as well as announced in the media of all other professional societies. In addition to the student’s award, Butler’s advisor, Associate Professor Kenneth D. Visser, will also be recognized for his role in guiding the student. He will receive lodging and assistance with travel expenses to the conference, where he will be presented a certificate of recognition.

Clarkson University launches leaders into the global economy. One in six alumni already leads as a CEO, VP or equivalent senior executive of a company. Located just outside the Adirondack Park in Potsdam, N.Y., Clarkson is a nationally recognized research university for undergraduates with select graduate programs in signature areas of academic excellence directed toward the world’s pressing issues. Through 50 rigorous programs of study in engineering, business, arts, sciences and health sciences, the entire learning-living community spans boundaries across disciplines, nations and cultures to build powers of observation, challenge the status quo, and connect discovery and engineering innovation with enterprise.

[News directors and editors: For more information, contact Annie Harrison, Director of Media Relations, at 315-268-6764 or]

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