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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Advanced Real Time Imaging
Presentation Title L-1: Ultrasonic Doppler Velocimetry Technique for Investigation of Flows in Liquid Metal Batteries
Author(s) Jonathan Cheng, Ibrahim Mohammad, Bitong Wang, Jarod M Forer, Douglas H Kelley
On-Site Speaker (Planned) Bitong Wang
Abstract Scope 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.
Proceedings Inclusion? Planned:
Keywords Energy Conversion and Storage, Characterization, Other


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L-1: Ultrasonic Doppler Velocimetry Technique for Investigation of Flows in Liquid Metal Batteries
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