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Journal : International Journal of Advances in Applied Sciences

Numerical study of non-linear twisted blades for tidal turbines improvement Arini, Nu Rhahida; Atmojo, Philips Ade Putera; Saputra, Deni; Satrio, Dendy
International Journal of Advances in Applied Sciences Vol 14, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i3.pp894-906

Abstract

Despite the growing demand for renewable energy, the utilization of tidal energy remains underdeveloped due to efficiency limitations in turbine design. Addressing this gap, this study investigates the performance of horizontal-axis tidal turbines (HATT) by comparing two foil designs, National Advisory Committee for Aeronautics (NACA) 2415 and OptA, to optimize energy extraction efficiency. The research employs computational fluid dynamics (CFD) simulations using OpenFOAM to evaluate the effects of foil modifications and non-linear twist distributions on turbine performance across varying tip speed ratios (TSR). The results indicate that the OptA foil significantly improves turbine performance, achieving a 41.4% increase in torque and a 40.2% increase in power coefficient (CP) at TSR 5, which was identified as the optimal operating condition. The OptA foil enhances velocity distribution, reduces flow separation, and improves vortex behavior, leading to greater efficiency and stability. These findings confirm that foil selection and blade design modifications play a critical role in HATT optimization.
Co-Authors Ade Sutedi, Ade Afriani, Rini Ahmad Soleh Ajhari, Meli Alfiandi, Alfiandi Amalia, Aceu Emil Ameliana, Latifa Amini, Nadia Ushfuri Andri Gemaini Andri Yadi Paembonan Aprilian, Hikmal Ardiyan Syah, Edo Arini, Nu Rhahida Asmuni Asmuni Athirah, Salwa Islami Atmojo, Philips Ade Putera Aulia, Wafa Ghaida Azhar, Choeirul Dahman, Muhammad Darnis, Febriyanti Dewi, Rindy Citra Dharma, Dian Budi Edidas , Edidas Elza Zuhry Faisal Abdullah Fariz, Nuthqy Fathori, Moch Zain Febrianita, Nella Fhadillah, Shelly Umayah Fitri Amalia Fitriano, Yun Ghani, Azman Abdul Giatman, M Hakim, Arif Lukmanul Helfi Nasution Herlyaminda, Evi Hestiyanti, Mita Hifdhillah, T Afrah Ikhsan, Masrul Ilyasa, Muhamad Iskandar, Faiz Putra Kristianto, Fesa Putra Lastiati, Anies Lulhaq, M Imam Bagus Lusiana Lusiana Marwan Marwan Marzuki Marzuki Maulana Hasanuddin, Maulana Maulana, Ilham Ahmad Maulida, Sindi Dewanti Maysaroh Mei Yudha, Agam Mintorogo, Dwi Anggadi Muhamad Tarmizi Muhammad Azhar Irwansyah Muhammad Ridha Adhari, Muhammad Ridha Muhammad Yanis Muhammad Yusuf Munandar, Jefri Muzakir Nefrizal - Neri Susanti Nugraha, Gartika Nurbayinah, Siti Rahmah Nurfikri, Muhammad Ikhsan Pebriyanto, Feby Pratama, Aldy Gumelar pratama, rendi Putra, Andre Pratama Putri, Shintia putri, Winna Ananda Rahadiansyah, Ardian Tri Rahma Adelia, Mega Rahman, Mufti Fauzi Ramadani, Cindy Rambe, Ira Hasianna Ramdani, Taufik Resa Vio Vani Rinaldi Idroes Rinto Noviantoro, Rinto Rizal Setiawan Rizky Kusumawardani Rizqulloh, Zidan Rakan Romanza, Nano Rosmawati Rosmawati Santika, Sesti Satria, Muhammad Alif Althaf Satrio, Dendy Sazeli Rifki, Muhamad Sepdanius, Endang Silalahi, Dianto Silalahi, Radison Sindhora, Arya Sri Yoseva Sukardi Sukardi Sukir Maryanto Sunarto, Imam Supardi Supardi Supardi Tisnawati, Rini Ula, Akramul Wahidah, Alisya Fitriya Nur Wirandi, Mohammad Yamashita Yamasitha Yamasitha Yona, Desma Yudha , Agam Mei Yudha, Agam Mei Yustitia, Moeri Zulyani, Eka Putri