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Parametric optimisation of two Pelton turbine runner designs using CFD |
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| Authors: | IDONIS Audrius PANAGIOTOPOULOS Alexandros AGGIDIS George A. ANAGNOSTOPOULOS John S. PAPANTONIS Dimitris E. |
| Affiliation: | 1. Lancaster University Renewable Energy Group and Fluid Machinery Group,Engineering Department,Lancaster University,Lancaster,UK 2. Lancaster University Renewable Energy Group and Fluid Machinery Group,Engineering Department,Lancaster University,Lancaster,UK;School of Mechanical Engineering,National Technical University of Athens,Athens,Greece 3. School of Mechanical Engineering,National Technical University of Athens,Athens,Greece |
| Abstract: | This paper aims to develop a generic optimisation method for Pelton turbine runners using computational fluid dynamics(CFD). Two different initial runners are optimised to achieve more generic results. A simple bucket geometry based on existing bibliography is parameterised and initially optimised using fast Lagrangian solver(FLS). It is then further optimised with a more accurate method using ANSYS Fluent. The second geometry is a current commercial geometry with good initial performance and is optimised using ANSYS CFX. The analytical results provided by CFX and Fluent simulations are used to analyse the characteristics of the flow for different runner geometries. |
| Keywords: | hydropower Pelton impulse turbines numerical modelling bucket geometry parameterisation optimisation |
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