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arXiv · 1203.5029

Highly focused supersonic microjets: numerical simulations

Ivo R. Peters·Yoshiyuki Tagawa·Nikolai Oudalov·Chao Sun·Andrea Prosperetti·Detlef Lohse·Devaraj van der Meer
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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.

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Ivo R. Peters, Yoshiyuki Tagawa, Nikolai Oudalov, Chao Sun, Andrea Prosperetti, Detlef Lohse, Devaraj van der Meer. 2012-09-28. Highly focused supersonic microjets: numerical simulations. https://doi.org/10.1017/jfm.2013.26

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