Please use this identifier to cite or link to this item: https://doi.org/10.1088/0169-5983/46/1/015513
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dc.titleNumerical investigation on the pulsating bubble dynamics in a narrow cylinder with a compliant coating
dc.contributor.authorFarhangmehr, V.
dc.contributor.authorHajizadeh Aghdam, A.
dc.contributor.authorShervani-Tabar, M.T.
dc.contributor.authorParvizi, R.
dc.contributor.authorOhl, S.W.
dc.contributor.authorKhoo, B.C.
dc.date.accessioned2014-10-07T09:08:44Z
dc.date.available2014-10-07T09:08:44Z
dc.date.issued2014-02
dc.identifier.citationFarhangmehr, V., Hajizadeh Aghdam, A., Shervani-Tabar, M.T., Parvizi, R., Ohl, S.W., Khoo, B.C. (2014-02). Numerical investigation on the pulsating bubble dynamics in a narrow cylinder with a compliant coating. Fluid Dynamics Research 46 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0169-5983/46/1/015513
dc.identifier.issn01695983
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/85501
dc.description.abstractIn this paper, the bubble dynamics in a narrow vertical rigid cylinder with a compliant coating filled with water is studied numerically. Considering the surface tension and the coincidence of bubble and cylinder centers, an adopted axisymmetric boundary integral equation approach besides a finite difference method is used for numerical simulation of bubble evolution accompanying with computing the pressure and velocity fields of fluid around it. The compliant boundary is modeled as a membrane with a spring foundation. It is found that the confinement of bubble by the cylinder increases greatly its lifetime and influences its behavior. The first stage of bubble contraction depicts the flattening of its top and bottom parts. A liquid counter-jet is then initiated and develops itself toward the bubble center; the bubble becomes biconcave at the end of the contraction phase. The bubble dynamics is affected by the ratio of cylinder radius to the maximum radius of the bubble. The results also represent the effects of two compliant coating characteristics including its mass per unit area and the spring constant on the bubble behavior. This investigation is motivated by the possibility of utilizing bubbles in the therapeutic cardiovascular applications. © 2014 The Japan Society of Fluid Mechanics and IOP Publishing Ltd.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1088/0169-5983/46/1/015513
dc.description.sourcetitleFluid Dynamics Research
dc.description.volume46
dc.description.issue1
dc.description.page-
dc.description.codenFDRSE
dc.identifier.isiut000331200400013
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