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Manabu Takao,Haruka Katsube,M. M. A. Alam,Seisuke Fukuma,Shinya Okuhara,Yoichi Kinoue 한국유체기계학회 2018 International journal of fluid machinery and syste Vol.11 No.1
Wells turbine, widely used to harness the wave energy, has high efficiency at a low flow rate. However, it has severe stall problem. In order to alleviate this problem, a dual-turbine system of Wells turbine with a booster impulse turbine was proposed. In the present study, the effect of impulse turbine geometries on the performance of combined turbine system was investigated by CFD analysis. As a result, the boosting effect of impulse turbine depends on the pressure differences that caused by the setting angles at a high flow rate. Moreover, the decrease of flow rate with the setting angle has a significant influence on the efficiency.
Takao, Manabu,Katsube, Haruka,Alam, M.M.A.,Fukuma, Seisuke,Okuhara, Shinya,Kinoue, Yoichi Korean Society for Fluid machinery 2018 International journal of fluid machinery and syste Vol.11 No.1
Wells turbine, widely used to harness the wave energy, has high efficiency at a low flow rate. However, it has severe stall problem. In order to alleviate this problem, a dual-turbine system of Wells turbine with a booster impulse turbine was proposed. In the present study, the effect of impulse turbine geometries on the performance of combined turbine system was investigated by CFD analysis. As a result, the boosting effect of impulse turbine depends on the pressure differences that caused by the setting angles at a high flow rate. Moreover, the decrease of flow rate with the setting angle has a significant influence on the efficiency.