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Sakarya University Journal of Science (SAUJS) Sakarya University Journal of Science (SAUJS) SAÜ Fen Bil Der/SAUJS Cilt/Volume: 24 Sayı/Issue: 6 Aralık/December 2020 e-issn: 2147-835X www.saujs.sakarya.edu.tr Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi (Sakarya University Journal of Science) Cilt/Volume: 24 No/ Issue: 6 Aralık/December 2020 Editör Kurulu/Editorial Boards Editor-in-Chief Davut Avcı, Pyhsics, Sakarya University (Turkey) Editors Alparslan Serhat Demir, Industrial Engineering, Sakarya University (Turkey) Aysun Eğrisöğüt Tiryaki, Mechanical Engineering, Sakarya University (Turkey) Ertan Bol, Civil Engineering, Sakarya University (Turkey) Hüseyin Aksoy, Biology, Sakarya University (Turkey) M. Hilmi Nişancı, Electrical and Electronics Engineering, Sakarya University (Turkey) Mehmet İşleyen, Environmental Engineering, Bursa Technical University (Turkey) Mehmet Nebioğlu, Chemistry, Sakarya University (Turkey) Mehmet UYSAL, Metallurgical and Materials Engineering, Sakarya University (Turkey) Mustafa Gülfen, Chemistry, Sakarya University (Turkey) Muhammed Fatih Adak, Computer Engineering, Sakarya University (Turkey) Murat Güzeltepe, Mathematics, Sakarya University (Turkey) Nezaket Parlak, Mechanical Engineering, Sakarya University (Turkey) Ömer Tamer, Physics, Sakarya University (Turkey) Editorial Board Aliye Suna Erses Yay, Environmental Engineering, Sakarya University (Turkey) Aslı Uçar, Faculty of Health Sciences, Nutrition and dietetics, Ankara University (Turkey) Aykut Astam, Physics, Erzincan Binali Yıldırım University (Turkey) Burak Erkayman, Industrial Engineering, Atatürk University (Turkey) Cansu Akbulut, Biology, Sakarya University (Turkey) Caner Erden, Industrial Engineering, Sakarya University (Turkey) Can Serkan Keskin, Chemistry, Sakarya University (Turkey) Elif Büyük Öğüt, Mechanical and Metal Technologies, Kocaeli University (Turkey) Emrah Bulut, Chemistry, Sakarya University (Turkey) Emre Dil, Energy Systems Engineering, Beyket University (Turkey) Emre Tabar, Physics, Sakarya University (Turkey) Faruk Fırat Çalım, Civil Engineering, Alparslan Türkeş University (Turkey) Gülnur Arabacı, Chemistry, Sakarya University (Turkey) İrfan Yazıcı, Electrical and Electronics Engineering, Sakarya University (Turkey) İsmail Hakkı Demir, Architecture, Sakarya University (Turkey) Latif Kelebekli, Chemistry, Ordu University (Turkey) Mahmud Tokur, Metallurgical and Materials Engineering, Sakarya University (Turkey) Mevlüt Sami Aköz, Civil Engineering, Çukurova University (Turkey) Miraç Alaf, Metallurgical and Materials Engineering, Bilecik Şeyh Edebali University (Turkey) Muhammed Maruf Öztürk, Computer Engineering, Süleyman Demirel University (Turkey) Murat Sarduvan, Mathematics, Sakarya University (Turkey) Murat Tuna, Chemistry, Sakarya University (Turkey) Murat Utkucu, Geophysical Engineering , Sakarya University (Turkey) Mustafa Akpınar, Software Engineering, Sakarya University (Turkey) Nazan Deniz Yön Ertuğ, Biology, Sakarya University (Turkey) Nükhet Sazak, Electrical and Electronics Engineering, Sakarya University (Turkey) Osman Kırtel, Civil Engineering, Sakarya University of Applied Sciences (Turkey) Özer Uygun, Industrial Engineering, Sakarya University (Turkey) Öznur Özkan Kılıç, Mathematics, Başkent University (Turkey) Rıfkı Terzioğlu, Electrical and Electronics Engineering, Bolu Abant İzzet Baysal University, (Turkey) Sibel Güneş, Mechanical Engineering, Erciyes University (Turkey) Soley Ersoy, Mathematics, Sakarya University (Turkey) Soydan Serttaş, Computer Engineering, Dumlupınar University (Turkey) Tuğrul Çetinkaya, Metallurgical and Materials Engineering, Sakarya University (Turkey) Turgay Şişman, Biology, Atatürk University (Turkey) English Language Editor Ömer Tamer, Physics, Sakarya University (Turkey) SAKARYA ÜNİVERSİTESİ FEN BİLİMLERİ ENSTİTÜSÜ DERGİSİ (SAKARYA UNIVERSITY JOURNAL OF SCIENCE) İÇİNDEKİLER/CONTENTS Cilt/Volume: 24 – No/Issue: 6 (ARALIK/DECEMBER 2020) RESEARCH ARTICLES Title Authors Pages Structural Design and Stress Analysis of a Helical Vertical Axis Wind Özer ÖĞÜÇLÜ 1151-1161 Turbine Blade The Relation Between Chebyshev Polynomials and Jacobsthal and Şükran UYGUN 1162-1170 Jacobsthal Lucas Sequences Clustering Entrepreneurial and Innovative Universities in Turkey Türkay DERELİ, Özge VAR, Alptekin 1171-1184 According to Their Relevance to Industry 4.0 DURMUŞOĞLU Time Fractional Equation Including Non-homogenous Dirichlet Süleyman ÇETİNKAYA, Ali DEMİR 1185-1190 Boundary Conditions Process Model Development of Lithium-ion Batteries — An Salim EROL 1191-1197 Electrochemical Impedance Spectroscopy Simulation A Practical Distributed Lightweight Multi-Hop Time Synchronization Md Abdullah AL IMRAN, Ahmet ERPAY, Ali Algorithm for Linear Wireless Sensor Networks Implemented on a PIC 1198-1209 KARA Based System with Realistic Experimental Analysis Synthesis of Gd doped TiO2 Thin Film for Photocatalytic Degradation of Hasan ESKALEN, Süleyman KERLİ 1210-1215 Malachite Green Optimization of the S-Rotor Savonius Wind Turbine Cemil YİĞİT 1216-1222 Mehmet Cemal ATLIOĞLU, Mustafa Supervised Learning Approaches to Flight Delay Prediction BOLAT, Murat ŞAHİN, Volkan TUNALI, 1223-1231 Deniz KILINÇ Study of the Effect of Various Chemical Polishing Treatments on MBE- Elif BİLGİLİSOY, Elif OZCERİ, Enver 1232-1247 Grown CdTe/GaAs (211)B Heterostructures TARHAN Comparison of the IUCN and the National Biodiversity (Noah's Ark) Levent BİLER, Seda BİKRİÇ 1248-1251 Database Solution of Test Problems with Grey Wolf Optimization Algorithm and Alper KÖYBAŞI, İrfaṅ YAZİCİ 1252-1264 Comparison with Particle Swarm Optimization Pınar ERECEVİT SÖNMEZ, Sevda KIRBAG, Reviewing Phlomis rigida Labill From Turkey as a Antimicrobial Efficacy 1265-1271 Uğur ÇAKILCIOĞLU An Experimental Method for Estimating Combined Friction Torque in Mustafa DAĞDELEN, Mehmet İlteriş 1272-1283 Vane Type Pneumatic Semi Rotary Actuators SARIGEÇİLİ Surface Improvement of Low Carbon Steels (St37) by Duplex Treatments Yıldız YARALI ÖZBEK 1284-1293 A Sentiment Analysis Model for Terrorist Attacks Reviews on Twitter İbrahim FADEL, Cemil ÖZ 1294-1302 On the Loci of Relaxation Time and Magnetic Dispersion Maxima in the Songül ÖZÜM 1303-1313 Mean-Field Ising Model The Role of Vertical Tool Load on the Joint Properties of Friction Stir Spot Zafer BARLAS, Uğur ÖZSARAÇ 1314-1320 Welded Brass Alloy Semi-Analytical and Finite Element Investigations of the Vibration of a Hakan ERDOĞAN, Safa Bozkurt COŞKUN 1321-1328 Stepped Beam on an Elastic Foundation The Method to Predict First Critical Core Loading for Nuclear Reactors Senem ŞENTÜRK LÜLE 1329-1336 Investigation of Neuregulin-1 Gen rs6994992 Polymorphism in Gifted Fikriye POLAT, Tuğba Büşra BAYRAM, 1337-1343 Students in Turkish Population Burcu YÜKSEL An in Vivo Study for the Use of Lupinus Albus (Fabaceae) in Drosophila Eda GÜNEŞ, Hatice Ferhan NİZAMLIOĞLU, 1344-1351 Melanogaster Diet Zafer BULUT, Mehmet NİZAMLIOĞLU WWW.SAUJS.SAKARYA.EDU.TR Sakarya University Journal of Science SAUJS e-ISSN 2147-835X | Period Bimonthly | Founded: 1997 | Publisher Sakarya University | http://www.saujs.sakarya.edu.tr/en/ Title: Structural Design and Stress Analysis of a Helical Vertical Axis Wind Turbine Blade Authors: Özer ÖĞÜÇLÜ Recieved: 2020-04-13 12:38:20 Accepted: 2020-08-04 14:17:12 Article Type: Research Article Volume: 24 Issue: 6 Month: December Year: 2020 Pages: 1151-1161 How to cite Özer ÖĞÜÇLÜ; (2020), Structural Design and Stress Analysis of a Helical Vertical Axis Wind Turbine Blade. Sakarya University Journal of Science, 24(6), 1151-1161, DOI: https://doi.org/10.16984/saufenbilder.719223 Access link http://www.saujs.sakarya.edu.tr/en/pub/issue/57766/719223 New submission to SAUJS http://dergipark.org.tr/en/journal/1115/submission/step/manuscript/new Sakarya University Journal of Science 24(6), 1151-1161, 2020 Structural Design and Stress Analysis of a Helical Vertical Axis Wind Turbine Blade Özer ÖĞÜÇLÜ*1 Abstract In this study, a Computational Fluid Dynamics (CFD) model is designed to investigate the structural analysis of a helical Vertical Axis Wind Turbine (VAWT) blade which is using National Advisory Committee for Aeronautics (NACA) 0018 airfoil and numerical calculations are conducted by using Comsol Multiphysics. The main objective of this study is to determine that the strength of the turbine blade against bending caused by increased wind speeds is sufficient for the selected turbine blade material. This paper presents also an investigation of the effects of different wind speeds on the structure of a helical VAWT blade that is fixed to the support arm which is attached to the VAWT’s main shaft. In this study, a turbine blade which is placed in an air flow field is subjected to approaching strong wind with different velocities. The model solves for the flow around the blade and the structural displacement due to the fluid load. This investigation consists of two main parts: Solving for the fluid flow around the turbine blade with a free stream velocities of 1, 3, 5, 7, and 9 m/s, and Studying the deformation of the turbine blade caused by the fluid load. The risk of failure according to the von Mises criterion for the ductile materials such as aluminum is also investigated. Keywords: CFD model, airfoil, helical, Vertical Axis Wind Turbine, turbine blade, von Mises designed in such a way that they can capture the 1. INTRODUCTION maximum energy from the wind. In the production of wind turbine rotors, the strength of Wind turbine is one of the renewable energy the turbine blades at high wind speeds is an sources whose importance is increasing.
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