Diagnoses on Flows and Solid Bodies with 3D Image Measurements and Laser Techniques

 

Deog Hee Doh

Korea Maritime and Ocean University, Busan 606-791, Korea  

Abstract

The principles of 3D Imaging techniques, such as3D-PIV (particle image velocimetry), 3D-PTV (particle tracking velocimetry),Tomographic PIV, and Tomographic PTV are introduced. Applications of the abovemeasurement techniques developed by the speaker are introduced.

Quantitative analyses on the flows behind a circularcylinder and a sphere have been made. Measurements with 3D-PTV and 4D-PTV wereperformed for a continuous jet and a pulsed jet.

Further, remote measurements on a solid body wereperformed with laser beams and a high speed camera. The source of thevibrations were recovered by adopting an artificial intelligence (AI).

Improved algorithms for the measurements of thetemperature and concentration fields of hight temperature gas flows with CT-TDLAS(computed tomography, tunable diode laser absorption spectroscopy) wereproposed, and their performances were quantitatively validated with actualexperiments.

Curriculum Vitae

Deog-Hee, DOH is currently a professor at the Division of Mechanical Eng., Korea Maritime & Ocean University, Korea. His research interest includes fluid engineering, flow measurements & visualization.  

He is an president of Korean Society of Visualization, a president of Ocean Academy, a chief editor of Korean Society of Mechanical Engineers, Journal(B). He received the contribution award of American Society of Mechanical Engineers in 2015, the best paper award of Korean Society of Visualization in 2014, the best technology award of Japanese Society of Multiphase Flow in 2010.  

He received his B.S., M.S. degrees in Marine Eng. Dept. form Korea Maritime University in 1985 and 1988, and he received his Ph.D. degrees in fluid engineering from Tokyo University, Japan in 1995. From 1995 to 1997 he was an full time lecturer at the Korea Maritime and Ocean University, Korea. From 1997 to 2001 he was an assistant professor at the Korea Maritime and Ocean University, Korea.