Aerodynamic breakup and secondary drop formation for a liquid metal column in a shock-induced cross-flow

Yi Chen, Edward P. DeMauro, Justin L. Wagner, Marco Arienti, Daniel R. Guildenbecher, Paul A. Farias, Thomas W. Grasser, Patrick D. Sanderson, Samuel W. Albert, Aaron M. Turpin, William Sealy, Remington S. Ketchum

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

The breakup of liquid metals is of relevance to powder formation, thermal spray coatings, liquid metal cooling systems, investigations of accident scenarios, and model validation. In this work, a column of liquid Galinstan, a room-temperature liquid metal alloy, is studied in a shock-induced cross-flow. Backlit experiments are used to characterize breakup morphology and digital in-line holography is used to quantitatively measure the size and speed of secondary droplets. Two-dimensional simulations are also developed in order to help understand the underlying mechanisms that drive breakup behavior. Results show that although breakup morphologies are similar for water and Galinstan at the same Weber number, the breakup distance, secondary droplet size, and secondary droplet shapes differ. Evidence indicates that secondary droplet formation may be related to the Weber number, density ratio, the convective velocity and other effects.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
DOIs
StatePublished - 2017
Externally publishedYes
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Other

Other55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States
CityGrapevine
Period1/9/171/13/17

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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