Visualizing Multiphase Flows with Tube Source X-rays: A Tutorial
Tracks
Day of Tutorials
| Monday, June 24, 2024 |
| 8:00 AM - 9:10 AM |
| 408-409 |
Overview
Dr. Theodore (Ted) J. Heindel Iowa State University, USA
Details
Multiphase flows are commonly found in many industries (e.g., chemical and fuel processing, pharmaceutical manufacturing) as well as throughout the environment (e.g., waves, rain, avalanches). Although multiphase flows are commonly observed, their operation and control are very complex. Experimental observations of multiphase flows are crucial to improve our understanding of the fundamental hydrodynamic and transport processes, as well as to develop and validate fundamental models. This tutorial will introduce multiphase flow visualization techniques using available tube source X-rays. Various imaging modes, including X-ray radiography, X-ray stereography, and X-ray computed tomography will be summarized and requirements for multiphase flow visualization will be presented. Multiphase flow examples using each imaging mode will be discussed, including gas-liquid, gas-solid, and granular flows. Required calibrations and challenges will be highlighted for specific multiphase flow systems. Qualitative and quantitative data will be presented, including high-speed flow visualization, particle tracking, and time-average local void fractions.
Speaker
Ted Heindel
Iowa State University
Visualizing Multiphase Flows with Tube Source X-rays: A Tutorial
Biography
Theodore (Ted) J. Heindel is a University Professor and the Bergles Professor of Thermal Science in the Department of Mechanical Engineering at Iowa State University. He is also the Director of the Center for Multiphase Flow Research and Education (CoMFRE) at ISU. His Experimental Multiphase Flow Laboratory houses a one-of-a-kind instrument for performing X-ray visualization studies of complex fluid flows. His research currently focuses on multiphase flow hydrodynamics (e.g., mixing in gas-liquid, gas-solid, and particle-particle flows) and multiphase flow visualization and characterization using X-ray imaging technology. His research program has been supported through the NSF, USDA, DOE, ONR, and industrial partners. He has co-authored one book and published over 105 peer-reviewed journal papers and nearly 300 conference papers, abstracts, and technical reports. He is currently an associate editor for the International Journal of Multiphase Flow. Ted has been recognized at Iowa State with the College of Engineering D.R. Boylan Eminent Faculty Award for Research in 2022, a Regents Award for Faculty Excellence in 2018, the Exemplary Faculty Mentor Award in 2014, the College of Engineering’s Superior Engineering Teacher of the Year Award in 2006 and was twice selected by graduating seniors as mechanical engineering’s Professor of the Year. He is a Fellow in the American Society of Mechanical Engineers, a past associate editor for the ASME Journal of Fluids Engineering, and the past chair of the ASME Fluids Measurement and Instrumentation Technical Committee. He received his B.S. from the University of Wisconsin – Madison and his M.S. and Ph.D. from Purdue University, all in mechanical engineering with an emphasis in the thermal sciences.
