Leon Esterowitz CBET Div Of Chem, Bioeng, Env, & Transp Sys
ENG Directorate For Engineering
August 15, 2012
January 31, 2015 (Estimated)
Awarded Amount to Date:
John Wentz email@example.com (Principal Investigator)
Thomas Shepard (Co-Principal Investigator)
University of St. Thomas
2115 Summit Avenue
St. Paul, MN
MAJOR RESEARCH INSTRUMENTATION
Program Reference Code(s):
Program Element Code(s):
This proposal requests funds for the purchase of a high-speed imaging system to be housed in the School of Engineering at the University of St. Thomas (UST) in Saint Paul, Minnesota. The system will consist of a Photron Fastcam capable of recording at 675,000 frames per second, associated micro-objective lenses for viewing phenomena on the microscale, laser and high-intensity LED lighting sources, precision manual positioning stages, and computing resources to drive the system and conduct image processing. The School of Engineering will be financially responsible for its maintenance and operation.
High-speed imaging of complex fluid flow is leading to a deeper understanding of the fundamentals in a diverse array of fields such as micro-particle formation and atomization cooling. Dr.?s Wentz and Shepard have been involved with the design and development of similar instrumentation and advanced analysis techniques in their previous work at the University of Illinois and the University of Minnesota. Dr. Shepard?s fundamental research on air injection into a liquid cross-flow has shown that wall shear stress is more strongly correlated to bubble diameter than bulk liquid velocity when generating micro-bubbles which find application in drag reduction, heat transfer enhancement and sprays.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
Some links on this page may take you to non-federal websites. Their policies may differ from this site.
A. Lunardelli, J. E. Wentz. "Computational Fluid Dynamic Analysis of Eccentric Atomization Spray Cooling Nozzle Designs for Micromachining," Journal of Micro- and Nano-Manufacturing, v.2, 2014, p. 021003.
D.B. Schwallbach, T.G. Shepard, S. Kane, D. Siglin, T. Harrington, J.P. Abraham. "Effect of impact velocity and mass ratio during vertical sphere water entry," Development and Applications of Oceanic Engineering, v.3, 2014, p. 55.
T.G Shepard, J.P. Abraham, D.B. Schwalbach, S. Kane, D. Siglin, T. Harrington. "Velocity and density effect on impact force during water entry of sphere," Journal of Geophysics and Remote Sensing, v.3, 2014, p. 1000129.