| Autor: |
Jifeng Wang, Norbert Müller, Marco Vagani |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Volume 5: Energy Systems Analysis, Thermodynamics and Sustainability; NanoEngineering for Energy; Engineering to Address Climate Change, Parts A and B. |
| DOI: |
10.1115/imece2010-39763 |
| Popis: |
The objective of this paper is to investigate the performance of composite material axial water turbines in a free stream using Fluent, a Finite Volume based commercial CFD package. Based on three dimensional numerical flow analysis and fluid-structure interaction, the flow characteristics of water turbines including a nozzle, impeller and diffuser are predicted. The extracted power coefficient is calculated for water turbines of different tip speed ratios in a free stream of water with inlet velocity of 2.5m/s. The extracted powers of one single turbine unit and an array with ten turbine units are analyzed and compared for different rotating speeds and water inlet velocities. The calculated results will provide a fundamental understanding of the impeller as a water turbine, and this design method is used to shorten the design process and improve the water turbine’s performance.Copyright © 2010 by ASME |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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