Collision dynamics of binary liquid metal droplets under horizontal magnetic field

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.

Automated summary

This paper investigates the effects of a horizontal magnetic field on binary liquid metal droplet collision, finding that small magnetic interaction parameters can facilitate certain collision regimes. A correlation and map are presented to interpret the limited influence of magnetic field on other collision regimes and predict significant influences at higher magnetic field strengths. Possible geometrical morphologies of droplets after collision are also discussed based on the physical processes involved.