Numerical assessment of parameters influencing the modal response of a Kaplan turbine model
| Autor: | Esteve Jou, Xavier Escaler, Oscar De La Torre, Rafel Roig |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica, Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids, Universitat Politècnica de Catalunya. IFLUIDS - Grup de Recerca Barcelona Fluids & Energy Lab, Universitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Fluid structure interaction
Enginyeria mecànica::Mecànica de fluids::Màquines hidràuliques i de fluids [Àrees temàtiques de la UPC] Modal analysis 02 engineering and technology 7. Clean energy 01 natural sciences Hydraulic turbines -- Fluid dynamics 0103 physical sciences Fluid–structure interaction Turbines hidràuliques 010301 acoustics Structural response Kaplan turbine Added mass Physics business.industry Kaplan turbine runner Numerical assessment Structural engineering 021001 nanoscience & nanotechnology Dinàmica de fluids 0210 nano-technology business Rotor dynamics |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | The present study intends to investigate numerically the impact of: i) the fluid added mass, ii) the turbine rotational speed and iii) the variation of the runner blade bearing stiffness due to the turbine water head on the modal response of a reduced scale Kaplan turbine. The impact of each variable has been quantified by means of a series of numerical modal analyses of the turbine in vacuum and in water, and at rest and rotating. It has been found that the natural frequencies of the Kaplan turbine model are sensitive to all the variables investigated in the present paper, the added mass being the factor which has the greatest impact. This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 814958. The authors also wish to acknowledge Vattenfall for the technical support received for developing this work. |
| Databáze: | OpenAIRE |
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