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Development and experimental validation of computational models for cavitating f...

Development and experimental validation of computational models for cavitating flows surface erosion damage and material loss Cavitation, described as the formation of vapour/gas bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapour pressure, often leads to vibration and damage of mechanical components, for examp... ver más

31/12/2018

CITY

4M€

Presupuesto del proyecto: 4M€

Líder del proyecto

CITY UNIVERSITY OF LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Ver 15 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2018-12-31

MSCA-ITN-2014-ETN: Marie Skłodowska-Curie Innovative T... Scope:European Training Networks (ETN)

I+D

Cerrada hace 10 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

15 Participantes

CITY

1.09M€ | Lider

NANYANG TECHNOLOGICAL UNIVER...

Aero Engine Controls

N.D. | Participante

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Duración del proyecto: 48 meses Fecha Inicio: 2014-12-05
Fecha Fin: 2018-12-31

Líder del proyecto

CITY UNIVERSITY OF LONDON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 4M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Cavitation, described as the formation of vapour/gas bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapour pressure, often leads to vibration and damage of mechanical components, for example, bearings, fuel injectors, valves, propellers and rudders, impellers, pumps and hydro turbines. Cavitation erosion when experienced, normally leads to significant additional repair and maintenance costs or component replacement. Even if erosion problems can be avoided by design or operation, most often the performance of the systems is sub-optimal because countermeasures by design are needed to prevent cavitation problems. Despite the long-lasting problems associated with cavitation, computational models that could simulate cavitation and identify locations of erosion are still not thoroughly developed. The proposed interdisciplinary training and research programme aims to provide new experimental data and an open-source simulation tool for hydrodynamic cavitation and induced erosion. Insight into the detailed bubble collapse mechanism leading to surface erosion will be realised through DNS simulations, which are now feasible by the significant progress in fluid flow computational methods and parallel simulations. Information from such models will be implemented as sub-grid scale models of URANS and LES approaches, typically employed for cavitation simulation at engineering scales. Model validation will be performed against new advanced X-ray, laser diagnostics and high speed imaging measurements to be performed as part of this project. Application of the developed models to cases of industrial interest includes fuel injectors, marine propellers, hydro-turbines, pumps and mechanical heart valves. From this understanding the development of methodologies for design of cavitation-free or remedial measures and operation of devices suffering from cavitation erosion can then be established for the benefit of the relevant communities.

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