Triple-pulse Particle Image Velocimeter for the Simultaneous Measurement of the Velocity and Acceleration Fields of Fluid and Flexible Structure under

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$149,909.00
Award Year:
2012
Program:
STTR
Phase:
Phase I
Contract:
N00014-12-M-0355
Agency Tracking Number:
N12A-011-0283
Solicitation Year:
2012
Solicitation Topic Code:
N12A-T011
Solicitation Number:
2012.A
Small Business Information
Spectral Energies, LLC
5100 Springfield Street, Suite 301, Dayton, OH, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
782766831
Principal Investigator:
Sivaram Gogineni
President
(937) 266-9570
sgogineni@spectralenergies.com
Business Contact:
Sivaram Gogineni
President
(937) 266-9570
sgogineni@spectralenergies.com
Research Institution:
Arizona State University
Ronald J Adrian
342 Engg. Research Center
Tempe, AZ, 85287-6106
(480) 965-6469
Nonprofit college or university
Abstract
An advanced optical instrument is proposed with the capabilities of distinguishing between fluid and solid components of an image and measuring the velocity field and acceleration field of each. The design is based on the well known and robustly practiced principles of particle image velocimetry, but by introducing a third light pulse it produces a fundamental innovation that both enables the measurement of acceleration fields and improves the accuracy and spatial resolution of the velocity measurement. A prototype instrument will be constructed and tested in two flows fields having steady and unsteady accelerations using software that will be written as part of the development. The PIV interrogation analysis will implement a third order correlation method that has been shown to yield order of magnitude performance improvements over second order correlation, the long standing standard of PIV. The system is amenable to realization is a low cost design that eliminates lasers and expensive PIV cameras. Phase I development will demonstrate feasibility of image segmentation, triple pulse imaging, third order correlation and implementation of the software.

* information listed above is at the time of submission.

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