Highly focused supersonic microjets: numerical simulations
Abstract
By focusing a laser pulse inside a capillary partially filled with liquid, a vapour bubble is created which emits a pressure wave. This pressure wave travels through the liquid and creates a fast, focused axisymmetric microjet when it is reflected at the meniscus. We numerically investigate the formation of this microjet using axisymmetric boundary-integral simulations, where we model the pressure wave as a pressure pulse applied on the bubble. We find a good agreement between the simulations and experimental results in terms of the time evolution of the jet and on all parameters that can be compared directly. We present a simple analytical model that accurately predicts the velocity of the jet after the pressure pulse and its maximum velocity.
Cite
@article{arxiv.1203.5029,
title = {Highly focused supersonic microjets: numerical simulations},
author = {Ivo R. Peters and Yoshiyuki Tagawa and Nikolai Oudalov and Chao Sun and Andrea Prosperetti and Detlef Lohse and Devaraj van der Meer},
journal= {arXiv preprint arXiv:1203.5029},
year = {2015}
}