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Influence of non-rigid surfaces on the dynamic response of a submerged and confined disk

Author
Valentin, D.; Presas, A.; Egusquiza, E.; Valero, M.
Type of activity
Presentation of work at congresses
Name of edition
6th IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems
Date of publication
2015
Presentation's date
2015-09-09
Book of congress proceedings
Cavitation and dynamic problems : 6 th IAHR meeting of the Working Group, IAHRWG 2015 : Ljubljana, Slovenia, September 9-11, 2015 : Proceedings
First page
251
Last page
258
Project funding
Análisis de la interacción fluido-estructura en perfiles hidráulicos de baja vorticidad y su efecto en la respuesta dinámica de turbinas-bomba
Repository
http://hdl.handle.net/2117/86310 Open in new window
URL
http://iahrwg2015.si/files/papers/3_Hydraulic_oscillation_flow_induces_vibration_and_FSI/IAHR_WG_15_3_11_VALENTIN.pdf Open in new window
Abstract
Determining the dynamic response of submerged and confined disk-like structures is of interest in the hydraulic turbines field. Disks present similar dynamic characteristics than hydraulic turbine runners, especially in the mode-shapes associated with each natural frequency. The dynamic response of submerged structures is heavily affected by the added mass and damping as well as the proximity of solid boundaries. In all studies the solid boundaries are commonly considered completely rigid, howev...
Citation
Valentin, D., Presas, A., Egusquiza, E., Valero, M. Influence of non-rigid surfaces on the dynamic response of a submerged and confined disk. A: IAHR International Workshop on Cavitation and Dynamic Problems in Hydraulic Machinery. "Cavitation and dynamic problems : 6 th IAHR meeting of the Working Group, IAHRWG 2015 : Ljubljana, Slovenia, September 9-11, 2015 : Proceedings". Ljubljana: 2015, p. 251-258.
Keywords
Added mass, Dynamic response, Natural frequency, Non-rigid surface
Group of research
CDIF - Center for Industrial Diagnostics
FLUIDS - Fluids Engineering

Participants

Attachments