Numerical simulation of cavitation erosion on a NACA0015 hydrofoil based on bubble collapse strength

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RECERCAT Home > Universitat Politècnica de Catalunya > Documents de recerca > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2117/83304

dc.contributor	Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.contributor	Universitat Politècnica de Catalunya. CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica
dc.contributor.author	Hidalgo, Victor
dc.contributor.author	Luo, Xianwu
dc.contributor.author	Escaler Puigoriol, Francesc Xavier
dc.contributor.author	Huang, R
dc.contributor.author	Valencia, E
dc.date	2015
dc.identifier.citation	Hidalgo, V., Luo, X., Escaler, X., Huang, R., Valencia, E. Numerical simulation of cavitation erosion on a NACA0015 hydrofoil based on bubble collapse strength. A: International Symposium on Cavitation. "Journal of Physics: Conference Series (JPCS)". Lausanne: Institute of Physics (IOP), 2015, p. 1-4.
dc.identifier.citation	10.1088/1742-6596/656/1/012050
dc.identifier.uri	http://hdl.handle.net/2117/83304
dc.language.iso	eng
dc.publisher	Institute of Physics (IOP)
dc.relation	http://iopscience.iop.org/article/10.1088/1742-6596/656/1/012050/meta
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria mecànica
dc.subject	Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids::Màquines hidràuliques i de fluids
dc.subject	Cavitation
dc.subject	Hydraulic machinery
dc.subject	Gas dynamics
dc.subject	Fluid dynamics
dc.subject	Cavitació
dc.subject	Màquines hidràuliques
dc.subject	Dinàmica de gasos
dc.subject	Dinàmica de fluids
dc.title	Numerical simulation of cavitation erosion on a NACA0015 hydrofoil based on bubble collapse strength
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	The prediction of erosion under unsteady cavitation is crucial to prevent damage in hydraulic machinery. The present investigation deals with the numerical simulation of erosive partial cavitation around a NACA0015 hydrofoil. The study presents the calculation of the bubble collapse strength, Sb , based on the bubble potential energy to identify the surface areas with highest risk of damage. The results are obtained with a numerical scheme assuming homogeneous mixture ow, implicit LES and Zwart cavitation model. The 3D unsteady ow simulation has been solved using OpenFOAM. Python language and OpenFOAM calculator (foamCalcEx) have been used to obtain and represent Sb . The obtained results clearly show the instants of erosive bubble collapse and the a ected surface areas.

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