Contact Information

Email: jhong@umn.edu
Office Phone: 612-626-4562
Offices: ME 233 & SAFL 381
Labs: ME 76, SAFL 276 & SAFL water tunnel


Sponsors

http://www.nsf.gov/

http://www.onr.navy.mil/

http://www.energy.gov/



Our Vision
We are interested in: (I) addressing the fundamental questions regarding the nature of fluids and their interaction with surrounding environment; (II) developing innovative imaging approach and instrumentation to tackle the challenges in the measurements of complex flow field for a wide range of applications; (III) Enabling multi-disciplinary research with advanced optical diagnostic tools developed for flow measurements

Current Research Highlights 
Full-scale Atmospheric Flows
Using super-large-scale particle image velocimetry (SLPIV) with natural snowflakes, we study the fundamental characteristics of atmospheric flows and its interaction with utility-scale wind turbines across a scale of above 100 m with unprecedented resolution.
Turbulence over surfaces
Using digital inline holography, we capture 3D motions of turbulent flow and how it interacts with surfaces over which it moves with a goal of developing innovative flow control methods for various applications. 
Ventilated Supercavitation
We image flow phenomena across a liquid-gas interface to investigate how we can control ventilated supercavitation for high-speed underwater transport. 
Innovative imaging diagnostics
We develop various innovative imaging-based measurement solutions and instruments for applications over a broad range of fields

Openings:
Postdocs:  Two openings available now
Graduate students: Openings available for Fall 2018
Undergraduates: Openings available for Summer 2018 for motivated undergraduates. The students are encouraged to apply for UROP to support themselves. Contact Prof. Hong with your CV and unofficial transcript.