PARAMETRIC STUDY OF OCEAN WAVE TURBINE (WELLS TYPE) OVER THE FLOATING OSCILLATING PLATFORM: A NUMERICAL ANALYSIS

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FATEMI HAMED; RIASI ALIREZA; NOURBAKHSH AHMAD

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:13 Page(s): 77-85

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Title

PARAMETRIC STUDY OF OCEAN WAVE TURBINE (WELLS TYPE) OVER THE FLOATING OSCILLATING PLATFORM: A NUMERICAL ANALYSIS

Author(s)

FATEMI HAMED | RIASI ALIREZA | NOURBAKHSH AHMAD | Issue Writer Certificate

Keywords

WELLS TURBINEQ2

OCEAN WAVEQ2

STALLQ2

CFDQ2

Abstract

Nowadays, using renewable energies, specifically OCEAN WAVE energy, is of importance in the world. One of the methods by which this energy can be harnessed is through using axial turbines with low head. In this study, performance of an OCEAN WAVE axial turbine of Wells type installed on the floating oscillating platform has been numerically studied. The length of the oscillating platform is equal with the wave length of the ocean and the WELLS TURBINE is installed at the center of oscillation platform. This design causes the inlet flow rate to be doubled which in turn increases the power. In this way, the governing equations include continuity and momentum equations have been solved considering k-wSST turbulence model in the rotating frame. The obtained results have been verified through mesh independency analysis and have been validated by comparison with the available experimental data. The results show that with decreasing the clearance by 2% of the chord length, the maximum efficiency, which is approximately 35%, will be gained. Moreover, by varying the blade angles from0 to 12oatthe different flow coefficients, the turbine performance is improved at the off-design points. Also, employing a blade with variable profile will lead to postponing STALL phenomena. Moreover, employing multistage turbines with guide vanes at the mid stage can improve efficiency by 9 percent.

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APA: Copy

FATEMI, HAMED, RIASI, ALIREZA, & NOURBAKHSH, AHMAD. (2015). PARAMETRIC STUDY OF OCEAN WAVE TURBINE (WELLS TYPE) OVER THE FLOATING OSCILLATING PLATFORM: A NUMERICAL ANALYSIS. MODARES MECHANICAL ENGINEERING, 14(13), 77-85. SID. https://sid.ir/paper/179717/en

Vancouver: Copy

FATEMI HAMED, RIASI ALIREZA, NOURBAKHSH AHMAD. PARAMETRIC STUDY OF OCEAN WAVE TURBINE (WELLS TYPE) OVER THE FLOATING OSCILLATING PLATFORM: A NUMERICAL ANALYSIS. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(13):77-85. Available from: https://sid.ir/paper/179717/en

IEEE: Copy

HAMED FATEMI, ALIREZA RIASI, and AHMAD NOURBAKHSH, “PARAMETRIC STUDY OF OCEAN WAVE TURBINE (WELLS TYPE) OVER THE FLOATING OSCILLATING PLATFORM: A NUMERICAL ANALYSIS,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 13, pp. 77–85, 2015, [Online]. Available: https://sid.ir/paper/179717/en

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