Abstract
This paper presents the work carried out to predict the behavior of a 0.6m Impulse turbine with fixed guide vanes with 0.6 hub to tip (H/T) ratio under real sea conditions. Water surface elevation verses time history based on Pierson Moskowitz Spectra was used as the input data. A typical Oscillating Water Column (OWC) geometry has been used for this simulation. Standard numerical techniques were employed to solve the non-linear behavior of the sea waves. Considering the quasi-steady assumption, unidirectional steady flow experimental data was used to simulate the turbine characteristics under irregular unsteady flow conditions. The test rotor used for this simulation consisted of 30 blades with elliptical profile with a set of symmetric, fixed guide vanes on both up-stream and down-stream sections of the rotor, with 26 vanes each. The results show that the performance of this type of turbine is quite stable and is similar to the behavior of the turbine under steady flow conditions. The objective of this paper is to predict the behavior of the Impulse turbine under irregular, unsteady conditions for wave power conversion using numerical simulation.
| Original language | English |
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| Pages | 674-681 |
| Number of pages | 8 |
| Publication status | Published - 2002 |
| Event | Proceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference - Kitakyushu, Japan Duration: 26 May 2002 → 31 May 2002 |
Conference
| Conference | Proceedings of the Twelfth (2002) International Offshore and Polar Engineering Conference |
|---|---|
| Country/Territory | Japan |
| City | Kitakyushu |
| Period | 26/05/02 → 31/05/02 |
Keywords
- Impulse Turbine
- Irregular
- Numerical Simulation
- Real sea conditions
- Unsteady
- Wave Energy
