Highly focused supersonic microjets: numerical simulations
Highly focused supersonic microjets: numerical simulations
By focusing a laser pulse inside a capillary partially filled with liquid, a vapour bubble is created that 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
587-605
Peters, Ivo
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Tagawa, Yoshiyuki
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Oudalov, Nikolai
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Sun, Chao
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Prosperetti, Andrea
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Lohse, Detlef
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van der Meer, Devaraj
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19 February 2013
Peters, Ivo
222d846e-e620-4017-84cb-099b14ff2d75
Tagawa, Yoshiyuki
87496dc3-bb91-4268-b608-86767f4a6f62
Oudalov, Nikolai
b03b7041-4576-4c37-9906-ca69fa61799f
Sun, Chao
16c59dfc-f89f-47dd-96ec-b4734295f1f8
Prosperetti, Andrea
1ff67af1-047d-424f-a8d7-341bc2950037
Lohse, Detlef
a4e72495-4a7c-4f36-b482-6066cb11797a
van der Meer, Devaraj
54e00557-0050-43f5-9efb-a28ea962591c
Peters, Ivo, Tagawa, Yoshiyuki, Oudalov, Nikolai, Sun, Chao, Prosperetti, Andrea, Lohse, Detlef and van der Meer, Devaraj
(2013)
Highly focused supersonic microjets: numerical simulations.
Journal of Fluid Mechanics, 719, .
(doi:10.1017/jfm.2013.26).
Abstract
By focusing a laser pulse inside a capillary partially filled with liquid, a vapour bubble is created that 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
Text
Highly focused supersonic microjets.pdf
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Published date: 19 February 2013
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 401425
URI: http://eprints.soton.ac.uk/id/eprint/401425
ISSN: 0022-1120
PURE UUID: 14f56a16-657c-4898-b445-8ffab3048eeb
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Date deposited: 17 Oct 2016 07:47
Last modified: 15 Mar 2024 03:52
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Contributors
Author:
Yoshiyuki Tagawa
Author:
Nikolai Oudalov
Author:
Chao Sun
Author:
Andrea Prosperetti
Author:
Detlef Lohse
Author:
Devaraj van der Meer
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