Three-Dimension Time Resolved PIV Instrument for Two-Phase Flows at Macro and Micro Scales
Abstract
Procure a particle image velocimetry (PIV) system capable of capturing three-dimensional measurements in kHz fps to enable the validation of and further decipher complex fluid dynamics of two-phase thin-films on heirarchical surfaces. A growth in speed and complexity, coupled with a continual decrease in scale, has led to a several order of magnitude soar in the power density of novel navy electronics. Thus, the development of cooling techniques has never been so critical, since this field has not expanded rapidly enough to control the increase in waste heat density. Currently, the PI is leading a threeyear ONR program entitled “Onset of Nucleation at Multiscale Hierarchical Surfaces,” N00014- 14-1-0402 sponsored by Dr. Mark Spector. The proposed particle image velocimetry (PIV) system, capable of capturing three-dimensional measurements in kHz fps, can enhance the quality of this DoD-funded research by validating and further deciphering complex fluid dynamics (the velocity field and its related heat transfer and pressure drop, etc.) at • Two-phase thin-film flow on hierarchical surfaces • Fluid dynamics in manifold microchannel • Electrowetting on dielectric (EWOD) On the other hand, the proposed MicroPIV system will also enhance our other ongoing research in areas of interest to the DoD, with thrusts focused at • Flow-structure-interaction in heat transfer applications • Horseshoe vortices induced by jet flow in a cross flow The PI loves teaching and is passionate about integrating state-of-the-art technology into his classes. Recently, he has supported students in establishing a student chapter of ASHRAE (American Society of Heating and Air-Conditioning Engineers) on campus, and serves as chapter’s advisor. The procurement of this PIV system will have substantial impact beyond just his laboratory research, by training postdoc members, graduate and undergraduate researchers with hands-on experience in performing a series of novel experiments. The data generated from the instrument will establish a sound understanding of the role of micro/nano-interfacial phenomena on multiphase flows, flow-structure interaction and cross-flow jets on heat transfer enhancement, and will potentially revolutionize the Navy’s thermal management approaches.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 23, 2016
- Source ID
- N000141612752
Entities
People
- Chung-Lung Chen
Organizations
- Office of Naval Research
- United States Navy
- University of Missouri System