Advanced Real Time Imaging: Poster Session
Sponsored by: TMS Structural Materials Division, TMS: Advanced Characterization, Testing, and Simulation Committee, TMS: Alloy Phases Committee, TMS: Biomaterials Committee
Program Organizers: Jinichiro Nakano, MatterGreen; David Alman, National Energy Technology Laboratory; Il Sohn, Yonsei University; Hiroyuki Shibata, Tohoku University; Antoine Allanore, Massachusetts Institute of Technology; Noritaka Saito, Kyushu University; Anna Nakano, US Department of Energy National Energy Technology Laboratory; Zuotai Zhang, Southern University of Science and Technology; Candan Tamerler, University of Kansas; Bryan Webler, Carnegie Mellon University; Wangzhong Mu, KTH Royal Institute of Technology; David Veysset, Stanford University; Pranjal Nautiyal, University of Pennsylvania
Tuesday 5:30 PM
March 1, 2022
Room: Exhibit Hall C
Location: Anaheim Convention Center
L-1: Ultrasonic Doppler Velocimetry Technique for Investigation of Flows in Liquid Metal Batteries: Jonathan Cheng1; Ibrahim Mohammad1; Bitong Wang1; Jarod Forer1; Douglas Kelley1; 1University of Rochester
Understanding the fluid dynamics and mass transport of liquid metal layers is important to liquid metal battery operation. However, they remain poorly characterized due to limitations of imaging tools for opaque liquid metals. In this study, we applied Ultrasonic Doppler Velocimetry techniques to enable real-time, in-situ flow measurements in liquid gallium. With this novel laboratory model of a liquid metal battery fluid layer, we investigated two major flows interacting within the liquid metal layer: thermal convection and electro-vortex flow. Using multiple ultrasound transducers allowed us to characterize typical velocities, flow structures, and flow statistics. Ultrasound measurements reveal that pure convection is dominated by the jump rope vortex which overturns at a characteristic frequency. They also indicate that electro-vortex flows go through stable, unstable, and oscillatory flow regimes under different current densities.