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Direct numerical simulation of bubble-cluster's dynamic characteristics
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Chen, Hui, Li, Shengcai, Zuo, Zhi-gang and Li, Shuai (2008) Direct numerical simulation of bubble-cluster's dynamic characteristics. Journal of Hydrodynamics, Vol.20 (No.6). pp. 689-695. doi:10.1016/S1001-6058(09)60003-2 ISSN 1001-6058.
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Official URL: http://dx.doi.org/10.1016/S1001-6058(09)60003-2
Abstract
A Direct Numerical Simulation (DNS) for understanding the dynamic response of bubble cluster to pulses of pressure perturbations has been studied by using a front-tracking method. The results show that owing to high nonlinearity, the bubble shape and volume oscillations caused by passing by pressure wave will be transformed into an in-phase volumetric oscillation of whole bubble cluster at a particular low-frequency. The value of the frequency is independent of the pulse excitations but the characteristics of the bubble cluster such as its bubble size, bulk void fraction and its spacial distribution etc. It is believed that this study provides important information for us to understand the coupling mechanism of cavitation cloud involved in cavitation resonance, a phenomenon noticed by one of the authors more than two decades ago.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Cavitation, Dynamics, Bubbles -- Dynamics , Computational fluid dynamics, Numerical analysis | ||||
Journal or Publication Title: | Journal of Hydrodynamics | ||||
Publisher: | Elsevier Science Inc. | ||||
ISSN: | 1001-6058 | ||||
Official Date: | December 2008 | ||||
Dates: |
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Volume: | Vol.20 | ||||
Number: | No.6 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 689-695 | ||||
DOI: | 10.1016/S1001-6058(09)60003-2 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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