We explore the dynamics and interactions of multiple bright droplets and bubbles, as well as the interactions of kinks with droplets and with antikinks, in the extended one-dimensional Gross–Pitaevskii model including the Lee–Huang–Yang correction. Existence regions are identified for the one-dimensional droplets and bubbles in terms of their chemical potential, verifying the stability of the droplets and exposing the instability of the bubbles. The limiting case of the droplet family is a stable kink. The interactions between droplets demonstrate in-phase (out-of-phase) attraction (repulsion), with the so-called Manton’s method explicating the observed dynamical response, and mixed behavior for intermediate values of the phase shift. Droplets bearing different chemical potentials experience mass-exchange phenomena. Individual bubbles exhibit core expansion and mutual attraction prior to their destabilization. Droplets interacting with kinks are absorbed by them, a process accompanied by the emission of dispersive shock waves and gray solitons. Kink–antikink interactions are repulsive, generating counter-propagating shock waves. Our findings reveal dynamical features of droplets and kinks that can be detected in current experiments.
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Manipulation of droplets and bubbles for thermal applications
Liquid–vapor phase change including evaporation, boiling, and condensation is a ubiquitous process found in power generation, desalination, thermal management, building heating and cooling, and additive manufacturing. The dynamics of droplets and bubbles during phase change including nucleation, growth, and departure critically influence the thermal transport performance and system efficiency. This review will highlight recent advancements using static and dynamic strategies to manipulate droplets and bubbles for phase change applications and beyond.
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- NSF-PAR ID:
- 10358898
- Date Published:
- Journal Name:
- Droplet
- ISSN:
- 2731-4375
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1002/dro2.21
