Analysis of added mass in cavitating flow
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | BENAOUICHA, Mustapha | |
| hal.structure.identifier | Institut de Recherche de l'Ecole Navale [IRENAV] | |
| dc.contributor.author | ASTOLFI, Jacques Andre | |
| dc.date.accessioned | 2021-05-14T09:59:04Z | |
| dc.date.available | 2021-05-14T09:59:04Z | |
| dc.date.issued | 2012-05 | |
| dc.identifier.issn | 0889-9746 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/78004 | |
| dc.description | The paper addresses a theoretical study of the added mass effect in cavitating flow.The cavitation is considered to induce a strong time–space variation of the fluid density at the interface between an inviscid fluid and a three-degree-of-freedom rigid section. The coupled problem is then simplified to a Laplace equation written for the pressure with aboundary condition at the fluid–structure interface depending on the acceleration, the velocity of the structure and on the rate of change of flow density. It is shown that contrary to the homogeneous flow, the added mass operator is not symmetrical and depends on the flow through fluid density variation. The added mass coefficients decrease as the cavitation increases which should induce an increase of the natural structural frequencies. The model shows also an added damping operator related to the rate of change of flow density. Added damping coefficients are found to be positive ornegative according to the rate of change of the fluid density, indicating the possibility of instability development between flexible structures and unsteady cavitating flows. | |
| dc.description.abstractEn | The paper addresses a theoretical study of the added mass effect in cavitating flow.The cavitation is considered to induce a strong time–space variation of the fluid density at the interface between an inviscid fluid and a three-degree-of-freedom rigid section. The coupled problem is then simplified to a Laplace equation written for the pressure with aboundary condition at the fluid–structure interface depending on the acceleration, the velocity of the structure and on the rate of change of flow density. It is shown that contrary to the homogeneous flow, the added mass operator is not symmetrical and depends on the flow through fluid density variation. The added mass coefficients decrease as the cavitation increases which should induce an increase of the natural structural frequencies. The model shows also an added damping operator related to the rate of change of flow density. Added damping coefficients are found to be positive ornegative according to the rate of change of the fluid density, indicating the possibility of instability development between flexible structures and unsteady cavitating flows. | |
| dc.language.iso | en | |
| dc.publisher | ELSEVIER | |
| dc.subject.en | Fluid–structure interaction | |
| dc.subject.en | Cavitation induced vibrations | |
| dc.subject.en | Added mass | |
| dc.title.en | Analysis of added mass in cavitating flow | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jfluidstructs.2012.03.003 | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des structures [physics.class-ph] | |
| bordeaux.journal | Journal of Fluids and Structures | |
| bordeaux.page | 30-48 | |
| bordeaux.volume | 31 | |
| bordeaux.hal.laboratories | Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295 | * |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | Bordeaux INP | |
| bordeaux.institution | CNRS | |
| bordeaux.institution | INRAE | |
| bordeaux.institution | Arts et Métiers | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01081223 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01081223v1 | |
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