| Application of Numerical Simulation Method to Predict the Performance of Wave Energy Device with Impulse Turbine |
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| 作者姓名： | AjitThakker AliAnsari |
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| 作者单位： | Department of Mechanical and Aeronautical Engineering，University of Limerick，Limerick，Department of Mechanical and Aeronautical Engineering，University of Limerick，Limerick，Department of Mechanical and Aeronautical Engineering，University of Limerick，Limerick，Department of Mechanical and Aeronautical Engineering，University of Limerick，Limerick，Department of Mathematics and Science，University of Limerick，Limerick，Department of Control Engineering，Matsue National College of Technology，14-4 Nishiikuma-cho，Matsue-shi，Shimane 690-8518，Department of Mechanical Engineering，Saga University，1 Honjo-machi，Saga-shi，Saga 840-8502 Ireland，Ireland，Ireland，Ireland，Ireland，Japan，Japan |
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| 摘 要： | This paper presents the work carried out to predict the behavior of a 0.6 m Impulse turbine with fixed guide vanes with 0.6 hub-to-tip (H/T) ratio under real sea conditions. In order to predict the true performance of the actual Oscillating Water Column (OWC), the numerical technique has been fine tuned by incorporating the compressibility effect. Water surface elevation verses time history based on Pierson Moskowitz Spectra was used as the input data. Standard numerical techniques were employed to solve the non-linear behavior of the sea waves. The effect due to compressibility inside the air chamber and turbine performance under unsteady and irregular flow condition has been analyzed numerically. Considering the quasi-steady assumptions, unidirectional steady flow experimental data was used to simulate the turbine characteristics under irregular unsteady flow conditions. The results show that the performance of this type of turbine is quite stable and efficiency of air chamber and the mean conversion
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| 关 键 词： | 脉冲透平 波能器件 性能 数字模拟 |
Application of numerical simulation method to predict the performance of wave energy device with impulse turbine |
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| Ajit?Thakker,Thirumalisai?Dhanasekaran,Hammad?Khaleeq,Zia?Usmani,Ali?Ansari,Manabu?Takao,Toshiaki?Setoguchi.Application of Numerical Simulation Method to Predict the Performance of Wave Energy Device with Impulse Turbine[J].Journal of Thermal Science,2003,12(1):38-43. |
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| Authors: | Ajit Thakker Thirumalisai Dhanasekaran Hammad Khaleeq Zia Usmani Ali Ansari Manabu Takao Toshiaki Setoguchi |
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| Affiliation: | (1) Department of Mechanical and Aeronautical Engineering, University of Limerick, Limerick, Ireland;(2) Department of Mathematics and Science, University of Limerick, Limerick, Ireland;(3) Department of Control Engineering, Matsue National College of Technology, 14-4 Nishiikuma-cho, Matsue-shi, 690-8518 Shimane, Japan;(4) Department of Mechanical Engineering, Saga University, 1 Honjo-machi, Saga-shi, 840-8502 Saga, Japan |
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| Abstract: | This paper presents the work carried out to predict the behavior of a 0.6 m Impulse turbine with fixed guide vanes with 0.6 hub-to-tip (H/T) ratio under real sea conditions. In order to predict the true performance of the actual Oscillating Water Column (OWC), the numerical technique has been fine tuned by incorporating the compressibility effect. Water surface elevation verses time history based on Pierson Moskowitz Spectra was used as the input data. Standard numerical techniques were employed to solve the non-linear behavior of the sea waves. The effect due to compressibility inside the air chamber and turbine performance under unsteady and irregular flow condition has been analyzed numerically. Considering the quasi-steady assumptions, unidirectional steady flow experimental data was used to simulate the turbine characteristics under irregular unsteady flow conditions. The results show that the performance of this type of turbine is quite stable and efficiency of air chamber and the mean conversion efficiency is reduced around 8% and 5% respectively, due to compressibility inside air chamber. |
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| Keywords: | wave energy impulse turbine numerical simulation irregular |
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