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Journal articles on the topic 'NACA 0018'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Seralathan, Sivamani, T. Micha Premkumar, S. Thangavel, and G. P. Pradeep. "Numerical Studies on the Effect of Cambered Airfoil Blades on Self-Starting of Vertical Axis Wind Turbine Part 2: NACA 0018 and NACA 63415." Applied Mechanics and Materials 787 (August 2015): 245–49. http://dx.doi.org/10.4028/www.scientific.net/amm.787.245.

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NACA 0012 and NACA 4415 were discussed in Part 1 of the paper to study the capabilities of the airfoil blades by considering the effect of cambered airfoil blade on self-starting of vertical axis wind turbine. The numerical studies are carried out to identify self-starting capability of the airfoil using CFD analysis by studying the flow field over the vertical axis wind turbine blades. In this Part 2 paper, detailed numerical results of asymmetrical NACA 0018 and cambered airfoil NACA 63415 are presented. The lift force generated and the rotor torque induced varies with angle of attack. Based

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2

Sahid, Sahid, Mulyono Mulyono, and Dhiyaulhaq Arif Fauzi. "Performance Analysis of H-Type Darrieus Turbine Radial Projection Blades Based on NACA 0018." Eksergi 20, no. 02 (2024): 43–51. https://doi.org/10.32497/eksergi.v20i02.5806.

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The H-type Darrieus turbine is a vertical windturbine that is used to convert wind energy into mechanicalenergy by utilizing lift force. This research is aimed at making amodified H-type Darrieus turbine blade model from a NACA0018 profile blade to a NACA 0018 blade with a chordlineprojected radially to the turbine diameter and the second resultis to compare the performance of the NACA 0018-based radialprojection blade to the performance of the NACA 0018 blade.This is preparation for searching literature, design making,manufacture of NACA 0018 blade test specimens and NACA0018 based radial sha

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3

González Díaz, Alan Javier, Leonardo José Geovo Coronado, and Yahir Enrique González Doria. "Selección del perfil alar simétrico óptimo para un aerogenerador de eje vertical utilizando la dinámica de flujos computacional." Ingeniare, no. 22 (April 5, 2018): 83–91. http://dx.doi.org/10.18041/1909-2458/ingeniare.22.1344.

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Las turbinas de eje vertical (VAWT) surgieron para la generación de energía a baja potencia. La principal parte de estos dispositivos son los álabes, los cuales definen el rendimiento de la turbina. En este trabajo, utilizando el software comercial ANSYS 14.0, se evaluaron los perfiles NACA 0015, NACA 0018, NACA 0021 y NACA 0025 para el álabe, seleccionando el perfil que presentó la mayor relación de los coeficientes de arrastre-sustentación y una variación suave del coeficiente de sustentación con respecto al ángulo de ataque. Se seleccionó, el perfil NACA 0025 por mantener una estabilidad di

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4

Erwin, Slamet Wiyono, Erny Listijorini, Rina Lusiani, and Tresna P. Soemardi. "Development of the Third Darrieus Blade of Sultan Wind Turbine for Low Wind Speed." Applied Mechanics and Materials 758 (April 2015): 13–19. http://dx.doi.org/10.4028/www.scientific.net/amm.758.13.

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Use of NACA 0012 at the Sultan Wind Turbine prototype provide value coefficient power turbine at wind speed 5.5 m / s by 0017 , wind speed 6.1 m / s at 0.015 , wind speed 7.7 m / s at 0.016 , wind speed 6.5 m / s for 0018 and wind speed 6.2 m / s by 0017 . Where the value of the highest efficiency obtained at a speed of 6.5 m / s at 0.018 . This result is not as expected to generate sufficient energy.The next development carried out investigations on some kind of airfoil, from investigations obtained by using Qblade software that NACA 6612 has a value of 1.78 CL at 15 degrees angle of attack i

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5

Гоман, О. Г., та А. О. Рожкевич. "АЕРОДИНАМІЧНИЙ РОЗРАХУНОК ВІТРОВОЇ ТУРБІНИ ДАР’Є В ЗАЛЕЖНОСТІ ВІД РІЗНИХ ТИПІВ ПРОФІЛІВ ТА МІСЦЕВОГО ЧИСЛА РЕЙНОЛЬДСА". Проблеми обчислювальної механіки і міцності конструкцій 1, № 36 (2023): 40–48. http://dx.doi.org/10.15421/4223104.

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У рамках класичної дводискової імпульсної теорії показано вплив змінного числа Рейнольдса на загальні енергетичні характеристики вітрової турбіни Дар’є. Інтегральний підхід дав змогу використовувати дводискову імпульсну модель для визначення основних питомих показників системи. Коефіцієнт потужності розраховувався на основі знайденого значення коефіцієнта крутного моменту на валу, який, у свою чергу, визначався числовим інтегруванням інтеграла повного крутного моменту, створюваного вітровою турбіною. Для розрахунку тестової задачі використовувалися класичні аеродинамічні профілі NACA: 0012, 00

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6

Ariefianto, Rizki Mendung, Rini Nur Hasanah, Wijono Wijono, and Asfarur Ridlwan. "Performance Study of a Humpback Whale Fluke Turbine on Foil Shape Variation Based on Double Multiple Streamtube Model." Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan 20, no. 3 (2023): 320–28. http://dx.doi.org/10.14710/kapal.v20i3.53886.

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Exploration of ocean current energy allows for the development of turbines as the primary conversion device. Turbine technologies have been developed in various types, including bio-inspired turbines, such as the humpback whale fluke turbine. In this study, the achievement of a humpback whale fluke turbine is investigated by applying various forms of foil, both symmetric and asymmetric, to obtain the appropriate foil profile. Symmetric foils were represented by NACA 0012, NACA 0018, and NACA 0021, while asymmetric foils were represented by NACA 4312, NACA 4512, and NACA 4712 foils. Simulations

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7

Abdus, Shabur, Hasan Afnan, and Ali Mohammad. "Comparison of Aerodynamic Behaviour between NACA 0018 and NACA 0012 Airfoils at Low Reynolds Number Through CFD Analysis." Advancement in Mechanical Engineering and Technology 3, no. 2 (2020): 1–8. https://doi.org/10.5281/zenodo.4003677.

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<em>For better designing of an airfoil, the aerodynamic characteristics of the airfoil need to be investigated both experimentally and numerically. Coefficient of lift (C<sub>L</sub>), coefficient of drag (C<sub>D</sub>), variation of C<sub>L</sub>/C<sub>D</sub> ratio with angle of attack is very important parameters in CFD analysis. In this study the above parameters are investigated for two symmetric airfoils (NACA0018 and NACA0012) at two different low Reynolds numbers of 300,000 and 700,000. This numerical results show that the stall angle for NACA0018 airfoil at Re=300,000 is less than 17

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8

Micha Premkumar, T., Sivamani Seralathan, T. Mohan, and N. N. P. Saran Reddy. "Numerical Studies on the Effect of Cambered Airfoil Blades on Self-Starting of Vertical Axis Wind Turbine Part 1: NACA 0012 and NACA 4415." Applied Mechanics and Materials 787 (August 2015): 250–54. http://dx.doi.org/10.4028/www.scientific.net/amm.787.250.

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This is Part-1 of the two-part paper in considering the effect of cambered airfoil blades on self-starting of vertical axis wind turbine. Part 1 reports the numerical studies on self-starting of vertical axis wind turbine with comparative studies involving NACA 0012 and cambered airfoil NACA 4415. Part 2 of the paper deals with numerical studies of NACA 0018 and cambered air foil NACA 63415. Darrieus type VAWT is attracting many researchers attention for its inherent advantages and its diversified applications. However, a disadvantage is when the rotor is stationary, no net rotational forces a

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9

Fadila, Anis, and Ilham Zakaria. "Rancang Bangun Turbin Angin Tipe Darrieus Tiga Sudu Rangkap Tiga dengan Profil NACA 0006." Eksergi 15, no. 3 (2020): 102. http://dx.doi.org/10.32497/eksergi.v15i3.1785.

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<p>Turbin angin Darrieus merupakan turbin angin sumbu vertical yang memilki poros rotor utama disusun tegak lurus dengan kelebihan utama dapat mengkonversi energi angin dari segala arah.Tujuan penelitian ini yaitu Membuat, melakukan uji kinerja dan analisis kinerja model turbin angin Darrieus tiga sudu rangkap tiga profil NACA 0006dan tiga sudu tunggal profil NACA 0018. Metode peneitian meliputi perancangan desain turbin angin Darrieus tiga sudu rangkap tiga, pembuatan, perakitan turbin angin, proses pengujian, dan metode analisis data. Pengujian dilakukan pada kecepatan angin 7-12 m/det

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10

Cardona-Cárdenas, José Daniel, Diego Andrés Hincapié Zuluaga, Juan Gonzalo Ardila Marín, Rafael de Oliveira Faria, and Carlos Alberto Ramírez Vanegas. "Impact of Blade and Solidity on the Performance of H-Darrieus Hydrokinetic Turbines by CFD Simulation." Revista de Gestão Social e Ambiental 18, no. 1 (2023): e03224. http://dx.doi.org/10.24857/rgsa.v18n1-007.

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Purpose: In the present work, the 2D design of H-Darrieus turbines with a diameter of 900 mm and NACA blades 0018, 0025, 2415, and 4415 has been carried out for the solidity values of 0,5; 1 and 1,5. In order to know its maximum performance. Method/design/approach: The 2D simulations were developed with the ANSYS® FLUENT package in the transient state, varying the angular velocity (ω) for a peak velocity ratio (TSR) of 1 to 7 and the SST K-ω turbulence model, for a constant water flow rate of 1 m/s. This in order to know the results of the torque (Nm) generated and thus calculate the power coe

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11

Lam, Garret C. Y., and Randolph C. K. Leung. "Aeroacoustics of NACA 0018 Airfoil with a Cavity." AIAA Journal 56, no. 12 (2018): 4775–86. http://dx.doi.org/10.2514/1.j056389.

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12

Pane, Medyawanti. "Wing Simulation Using Naca 0018 and 0024 and Aluminum Alloy 7075 T6-SN and 7050-T7451 Materials for Lift and Drag." JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY 8, no. 2 (2024): 191–200. https://doi.org/10.31289/jmemme.v8i2.13164.

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Analysis of the airfoil's shape on an airplane wing is essential because geometry can determine aerodynamic performance and the forces at work, such as lift and drag. In this research, two types of aluminum materials, namely Aluminum Alloy 7075 T6-SN and Aluminum Alloy 7050-T7451, will be tested to find out which one can produce the highest lifting force and drag force on NACA 0018 and 0024 as well as look at the pressure contour and speed Contour of each type of material using ANSYS Fluent software at a speed of 200 m/s. From the simulation and calculation results, it was obtained that the hi

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13

Md., Abdus Shabur, Asif Hasan Khan Md., and Saad Resan Nafis. "Computational Fluid Dynamics Analysis on Turbulent Kinetic Energy Distribution of NACA 0018 Airfoil at Two Reynolds Number." Research and Reviews: Journal of Mechanics and Machines 4, no. 1 (2022): 1–12. https://doi.org/10.5281/zenodo.6451982.

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<em>The aerodynamic attributes of an airfoil must be evaluated both computationally and experimentally in order to improve its design and performance. The turbulence kinetic energy of a symmetric airfoils NACA 0018 was investigated in this study for two separate low Reynolds numbers of 300,000 and 700,000. This computational simulation work, which was carried out using the Ansys FLUENT 14.5 software, yields some interesting results. The distribution of turbulence kinetic energy across airfoil surfaces at various angles of attack and under two different airstream velocities is illustrated in th

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14

Wang, Yue, and Xiangyu Wen. "Aerodynamic Characteristics of NACA 0018 Based on CFD Method at Low Reynolds Number." Applied and Computational Engineering 168, no. 1 (2025): 45–54. https://doi.org/10.54254/2755-2721/2025.24246.

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The aerodynamic properties of the airfoil are of great significance in improving the aerodynamic properties of the small fixed-wing UAV. This study demonstrates a numerical evaluation of the planar aerodynamic properties of a typical NACA 0018 airfoil at Reynolds numbers varying between 3105 and 5105 as well as angles of attack between 0 and 20. The computational fluid dynamics (CFD) flow simulation tool ANSYS Fluent, which is based on the limited volume approach, is used to perform the computation. Based on the continuity equation and Navier-Stokes control equation, the Spalart-Allmaras turbu

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15

MR., M.P. JAGTAP DR. L.G. NAVALE. "TWIST ANGLE ANALYSIS OF HELICAL VERTICAL AXIS WIND TURBINE (VAWT) USING Q-BLADE." JournalNX - A Multidisciplinary Peer Reviewed Journal 3, no. 8 (2018): 94–98. https://doi.org/10.5281/zenodo.1159139.

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In this paper the analysis of DU-06-W200 and NACA 0018 , NACA 0021 airfoil using Q-Blade & analytical method is investigated . The power produced by 1 kw wind turbine with Helical blade for the twist angle (Ñ±) 30Â° , (Ñ±) 60Â° (Ñ±) 90Â° (Ñ±) 120Â° configurations are analyzed with Q-Blade open source simulator software. The basic principal of double â€“multiple stream tube model (DMS) utilized for determination of energy extracted by wind blade from the fluid by reducing its vel

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16

Michna, Jan, and Krzysztof Rogowski. "Numerical Study of the Effect of the Reynolds Number and the Turbulence Intensity on the Performance of the NACA 0018 Airfoil at the Low Reynolds Number Regime." Processes 10, no. 5 (2022): 1004. http://dx.doi.org/10.3390/pr10051004.

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In recent years, there has been an increased interest in the old NACA four-digit series when designing wind turbines or small aircraft. One of the airfoils frequently used for this purpose is the NACA 0018 profile. However, since 1933, for over 70 years, almost no new experimental studies of this profile have been carried out to investigate its performance in the regime of small and medium Reynolds numbers as well as for various turbulence parameters. This paper discusses the effect of the Reynolds number and the turbulence intensity on the lift and drag coefficients of the NACA 0018 airfoil u

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17

Olayemi, O. A., T. F. Ajide, A. Jinadu, et al. "Analysis of a 2-Bladed NACA 0018 Vertical Axis Wind Turbine." E3S Web of Conferences 591 (2024): 02005. http://dx.doi.org/10.1051/e3sconf/202459102005.

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Renewable energy has provided a stable electricity supply with a guaranteed reduction in CO2 production. There are various types of renewable energy, but wind energy appears to be the least expensive option compared to other renewable energy sources. The current study involves the performance investigation of an H Darrius wind turbine in Ilorin Kwara State, Nigeria. Using Ilorin wind data obtained from the Nigeria Meteorological Agency (NIMET), a 2-dimensional CFD analysis was performed on a two- bladed NACA 0018 airfoil profile with the aid of Ansys (Fluent) to unravel the implications of tip

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18

Setiawan, Priyo Agus. "Kinerja Darrieus Tipe-H terhadap Variasi Tinggi Fin Pada NACA 0018." INOVTEK POLBENG 13, no. 1 (2023): 92. http://dx.doi.org/10.35314/ip.v13i1.3319.

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Potensi sumber daya energi terbarukan di Indonesia sangat besar. Potensi tersebut dapat dimanfaatkan untuk mendistribusikan energi secara merata. Salah satu pemanfaatannya yaitu dengan menggunakan turbin angin Darrieus untuk mengubah energi angin menjadi energi listrik. Berbagai upaya telah dilakukan guna meningkatkan kinerja turbin. Penelitian ini menggunakan studi numeric dengan memvariasikan tinggi fin untuk mengetahui nilai Cp, Ct dan TSR. Metode Computational Fluid Dynamics digunakan untuk mengetahui nilai Ct, Cp dan TSR yang berupa grafik koefisien torsi (Ct) dan koefisien daya (Cp) terh

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19

Michna, Jan, Maciej Śledziewski, and Krzysztof Rogowski. "The Harmonic Pitching NACA 0018 Airfoil in Low Reynolds Number Flow." Energies 18, no. 11 (2025): 2884. https://doi.org/10.3390/en18112884.

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This study investigates the aerodynamic performance of a symmetric NACA 0018 airfoil under harmonic pitching motions at low Reynolds numbers, a regime characterized by the presence of laminar separation bubbles and their impact on aerodynamic forces. The analysis encompasses oscillation frequencies of 1 Hz, 2 Hz, and 13.3 Hz, with amplitudes of 4° and 8°, along with steady-state simulations conducted for angles of attack up to 20° to validate the numerical model. The results reveal that the γ-Reθ turbulence model provides improved predictions of aerodynamic forces at higher Reynolds numbers bu

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20

Sereez, Mohamed, Nikolay Abramov, and Mikhail Goman. "CFD Simulations and Phenomenological Modelling of Aerodynamic Stall Hysteresis of NACA 0018 Wing." Aerospace 11, no. 5 (2024): 354. http://dx.doi.org/10.3390/aerospace11050354.

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Computational simulations of three-dimensional flow around a NACA 0018 wing with an aspect ratio of AR=5 were carried out by using the Unsteady Reynolds-Averaged Navier–Stokes (URANS) equations with the Shear-Stress Transport turbulence model closure. Simulations were performed to capture aerodynamic stall hysteresis by using the developed pseudo-transient continuation (PTC) method based on a dual-time step approach in CFD OpenFOAM code. The flow was characterized by incompressible Mach number M=0.12 and moderate Reynolds number Re=0.67×106. The results obtained indicate the presence of notice

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21

Armaan Aditya et al.,, Armaan Aditya et al ,. "The Numerical Analysis of NACA 0018 Airfoil, Studying the Effect of Flap." International Journal of Mechanical and Production Engineering Research and Development 9, no. 4 (2019): 1047–54. http://dx.doi.org/10.24247/ijmperdaug2019107.

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22

Armaan Aditya , Srinivas. G, Armaan Aditya ,. Srinivas G. "The Numerical Analysis of NACA 0018 Airfoil, Studying the Effect of Flap." International Journal of Mechanical and Production Engineering Research and Development 9, no. 4 (2019): 1087–94. http://dx.doi.org/10.24247/ijmperdaug2019112.

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23

Timmer, W. A. "Two-Dimensional Low-Reynolds Number Wind Tunnel Results for Airfoil NACA 0018." Wind Engineering 32, no. 6 (2008): 525–37. http://dx.doi.org/10.1260/030952408787548848.

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24

Nikhil Babu, P., V. Dhinesh, A. Ashif, Aswin V. Vijay, and D. Mohankumar. "Design and fabrication of NACA 0018 straight bladed vertical axis wind turbine." IOP Conference Series: Earth and Environmental Science 573 (October 15, 2020): 012047. http://dx.doi.org/10.1088/1755-1315/573/1/012047.

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25

Alieva, D. A., K. A. Kolinko, and A. N. Khrabrov. "Hysteresis of the aerodynamic characteristics of NACA 0018 airfoil at low subsonic speeds." Thermophysics and Aeromechanics 29, no. 1 (2022): 43–57. http://dx.doi.org/10.1134/s0869864322010036.

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26

Samosir, Rahmad, Medyawanti Pane, and Joko Herman Lumbantoruan. "Perancangan Turbin Angin Vertikal Modifikasi Gabungan Savonius dan Darrieus Menggunakan Geometri Naca 0018." JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY 5, no. 1 (2021): 69–77. http://dx.doi.org/10.31289/jmemme.v5i1.4108.

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Desain gabungan antara modifikasi Savonius dan modifikasi Darieus (menggunakan geometri airfoil NACA 0018) dirancang memanfaatkan kecepatan angin rendah yang akan di konversi menjadi energi listrik alternatif sehingga dapat dimanfaatkan untuk rumah tangga dan komersil. Dikarenakan kedua jenis turbin ini memiliki kelebihan dan kekurangan masing-masing, maka dirancang pengabungan dari modifikasi kedua turbin ini yang mampu memberikan daya yang lebih besar. Pada kecepatan yang sama yaitu 6,1 m/s dilakukan pengujian dan diperoleh daya yang dihasilkan oleh turbin modifikasi Savonius ialah 3,32 Watt

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27

Gim, Ok-Sok, and Gyoung-Woo Lee. "Flow characteristics and tip vortex formation around a NACA 0018 foil with anendplate." Ocean Engineering 60 (March 2013): 28–38. http://dx.doi.org/10.1016/j.oceaneng.2012.12.009.

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28

Managi, I. Marlon. "Perancangan Sudu Turbine Expander Menggunakan Profil NACA 0018 Dengan Program Cascade dan CFD." Jurnal Inovasi Teknologi dan Edukasi Teknik 3, no. 2 (2023): 92–98. http://dx.doi.org/10.17977/um068v3i22023p92-98.

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Research and development of the Organic Rankine Cycle (ORC) is becoming increasingly intense for converting heat into electricity. Many heat sources are available such as: solar radiation, biomass combustion, heat waste from factory and geothermal. Radial turbine is chosen for Organic Rankine Cycle due to its simple structure, components availability, and ease of application on a small power plant scale. The efficiency of the cycle is highly dependent on the design of the radial turbine. This study aims to obtain a turboexpander design with the utilization of NACA0018 airfoil as a stator. Opti

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29

MR., M.P. JAGTAP, and L.G. NAVALE DR. "TWIST ANGLE ANALYSIS OF HELICAL VERTICAL AXIS WIND TURBINE (VAWT) USING Q-BLADE." JournalNX - a Multidisciplinary Peer Reviewed Journal 3, no. 8 (2017): 94–98. https://doi.org/10.5281/zenodo.1420799.

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In this paper the analysis of DU-06-W200 and NACA 0018 , NACA 0021 airfoil using Q-Blade & analytical method is investigated . The power produced by 1 kw wind turbine with Helical blade for the twist angle (Ñ±) 30Â° , (Ñ±) 60Â° (Ñ±) 90Â° (Ñ±) 120Â° configurations are analyzed with Q-Blade open source simulator software. The basic principal of double â€“multiple stream tube model (DMS) utilized for determination of energy extracted by wind blade from the fluid by reducing its vel

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30

Trimulyono, Andi, and Ryan Andriawan. "ANALISA PENGARUH PERUBAHAN PANJANG CHORD DAN KETEBALAN BLADE PADA TURBIN PEMBANGKIT TENAGA ARUS DENGAN METODE CFD." Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan 8, no. 3 (2012): 112–18. http://dx.doi.org/10.14710/kpl.v8i3.3184.

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Indonesia as an archipelagic country has territorial waters wider than the land, so the Indonesian seas provide a very large alternative energy, such as energy produced from ocean currents. This energy can produce a very large kinetic energy and environmentally friendly. During this ocean current energy generation power that has developed and patented a type of Darrieus Water Turbine propulsion and turbine vertical Axiz kobolt. In this study, using a turbine with NACA 0018 foil type, by modifying the NACA 0018 foil with changing chord length and thickness of the blade to get a big lift and dra

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31

Paraschivoiu, Ion, Shahrokh Shams, and Norbert V. Dy. "Performance assessment of Darrieus wind turbines with symmetric and cambered airfoils." Transactions of the Canadian Society for Mechanical Engineering 42, no. 4 (2018): 382–92. http://dx.doi.org/10.1139/tcsme-2017-0105.

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During the operation of a Darrieus type vertical axis wind turbine (VAWT), the blade sections are subjected to different flow velocities and incidences that can be converted to mechanical power with varying efficiency depending on the airfoil. The goal of the present study is to emphasize the advantages and the drawbacks of the use of symmetrical, cambered, and laminar airfoil for a typical Darrieus type VAWT. The NACA 0018, FX63-137 and SNLA 18/50 airfoils were selected for this study.

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32

Yamin, Mohamad, Andrian Putra, and Riyan Firmansyah. "2D CFD Simulation on the Aerodynamic Performance Enhancement of H-Darrieus VAWT Utilized with Flaps." Engineering Science Letter 3, no. 03 (2024): 91–99. https://doi.org/10.56741/esl.v3i03.564.

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This research aims to enhance the aerodynamic performance of the H-Darrieus Vertical Axis Wind Turbine (VAWT) consisting of 3 main blades with the addition of flaps on each blade. Performance evaluation and geometry optimization are conducted by varying the gap distance between the main blades and flaps and altering the deflection angle of the flaps. A numerical approach using Computational Fluid Dynamics (CFD) is employed to analyze the performance of VAWT turbines and optimize the gap distance between the blades and flaps. NACA 0018 profiles are utilized for the main blades, while NACA 0015

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33

Sitorus, Rijal B., Tulus B. Sitorus, Syahril Gultom, Farel H. Napitupulu, and Taufiq Bin Nur. "UJI PERFORMANSI TURBIN ANGIN PROFIL SUDU NACA 0018 SEBAGAI PENGGERAK AERATOR DI TAMBAK UDANG." DINAMIS 3, no. 3 (2015): 11. http://dx.doi.org/10.32734/dinamis.v3i3.6999.

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Letak geografis Indonesia sebagai negara tropis menyebabkan karakteristik angin di Indonesia sangat berbeda dengan karakteristik angin di negara-negara maju yang telah memanfaatkan angin sebagai sumber energinya. Untuk itu perlu mengembangkan teknologi turbin angin sumbu vertikal yang tidak dipengaruhi perubahan arah datangnya angin.Penelitian ini menggunakan model turbin angin sumbu vertikal Darrieus Tipe-H dengan profil sudu NACA 0018,panjang chord (C) 0,4 m, sudut pitch 60 dan jumlah sudu 3 buah. Dimensi turbin angin yaitu diameter (D) 2 m,tinggi (H) 1,5 m dan massa sudu 1,5 kg.Ada 2 buah a

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Ariefianto, Rizki Mendung, Rini Nur Hasanah, and Wijono Wijono. "Analisis Turbin Darrieus Tipe V-Shaped Blade Untuk Aplikasi Konverter Energi Arus Laut Menggunakan Software QBlade." Jurnal Kelautan Nasional 17, no. 2 (2022): 107. http://dx.doi.org/10.15578/jkn.v17i2.10842.

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Turbin tipe Darrieus merupakan salah satu jenis turbin sumbu vertikal yang memiliki prospek menjanjikan dalam pengembangan turbin hidrokinetik, salah satunya dalam aplikasi untuk pembangkit arus laut. Berbagai penelitian telah dilakukan untuk meningkatkan performa turbin Darrieus yang pada umumnya memiliki performa efisiensi dan self-starting lebih rendah dibandingkan jenis turbin sumbu horisontal. Tujuan penelitian ini adalah untuk mengevaluasi performa turbin Darrieus yang ditinjau dari aspek efisiensi dan kemampuan self-starting. Skenario pengujian berupa penerapan bentuk foil dan blade swe

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Nugroho, Setyo, Arrad Ghani Safitra, Teguh Hady Aribowo, and Mochammad Arief Julianto. "Improve of Water Flow Acceleration in Darrieus Turbine Using Diffuser NACA 11414 2,5R." EMITTER International Journal of Engineering Technology 6, no. 1 (2018): 62–74. http://dx.doi.org/10.24003/emitter.v6i1.236.

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Indonesia has potential hydro energy around 70000 MW which has been used around 6% (3529 MW). One of the development constraint is the stream velocity in Indonesian rivers is relative low. It causes bigger turbine dimension needed to achieve power which is desired. Â An alternative is to utilize adiffuser, which is a device that could accelerate the fluid flow in order to give more energy to the turbine. Based on contiunity equation, diffuser can increase velocity by ratio of cross-section area. It can be Â used to achieve expected power as long as it is not too much reduce the pressure. This

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Choubey, Abhishek, Prashant Baredar, and Neha Choubey. "Power Optimization of NACA 0018 Airfoil Blade of Horizontal Axis Wind Turbine by CFD Analysis." International Journal of Energy Optimization and Engineering 9, no. 1 (2020): 122–39. http://dx.doi.org/10.4018/ijeoe.2020010104.

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The country or region where energy production is based on imported coal or oil will become more self-sufficient by using alternatives such as wind power. Electricity produced by the wind produces no CO2 emissions and therefore does not contribute to the greenhouse effect. Wind energy is relatively labour intensive and thus creates many jobs. Wind energy is the major alternative of conventional energy resources. A wind turbine transforms the kinetic energy in the wind to mechanical energy in a shaft and finally into electrical energy in a generator. The turbine blade is the most important compo

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Mailvaganam, D., and S. Roy. "A Three-Dimensional CFD Study of NACA 0018 Darrieus Hydrokinetic Turbine through Unsteady RANS Simulations." Journal of Physics: Conference Series 2051, no. 1 (2021): 012068. http://dx.doi.org/10.1088/1742-6596/2051/1/012068.

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Abstract For low-head water sources, hydrokinetic turbines are potential technologies that can offer viable renewable energy options to extract energy in the rivers and water channels. In this paper, three-dimensional unsteady simulations were carried out on a straight-bladed Darrieus hydrokinetic turbine with NACA 0018 airfoil to analyse the flow physics in vortex separation at an operating tip speed ratio of 1.7 with turbine solidity of 0.224. The vortex separation or flow separation, and flow reattachment have been studied concerning the instantaneous power coefficients of the turbine at di

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Dharmawan, Prayogi Donny, Ardhi Fathoni Syam PN, and Nely Ana Mufarida. "Analisis Perbandingan Angle of Attack pada Airfoil Modifikasi dan NACA 0018 menggunakan Pendekatan Komputasional (CFD)." J-Proteksion 6, no. 1 (2021): 20–25. http://dx.doi.org/10.32528/jp.v6i1.5353.

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Kermani, Saman, and Parviz Ghadimi. "ASSESSMENT OF FLOW INTERACTIONS BETWEEN CIRCULAR CYLINDERS AND NACA-0018 HYDROFOILS AT LOW REYNOLDS NUMBERS." Brodogradnja 68, no. 4 (2017): 103–20. http://dx.doi.org/10.21278/brod68407.

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Tarihoran, B., M. D. Sebayang, and M. Pane. "Modification of geometry of airfoil NACA 0018 towards work testing vertical axis wind type Darrieus Eggbeater." IOP Conference Series: Earth and Environmental Science 878, no. 1 (2021): 012071. http://dx.doi.org/10.1088/1755-1315/878/1/012071.

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Abstract Technological developments on energy savings are caused by increasing demand for energy use from year to year. This is done to avoid an energy crisis. The energy crisis is a problem that is being faced because of the depletion of fossil energy. To restore fossil energy can require natural processes in a long time. With the limited availability of fossil energy, it is very necessary to develop alternative energy sources that are friendly to the environment, one of which is wind energy. Indonesia is an archipelago, so the wind speed in Indonesia is relatively low, then in this study can

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Damiola, Luca, Muhammad Faheem Siddiqui, Mark Charles Runacres, and Tim De Troyer. "Influence of free-stream turbulence intensity on static and dynamic stall of a NACA 0018 aerofoil." Journal of Wind Engineering and Industrial Aerodynamics 232 (January 2023): 105270. http://dx.doi.org/10.1016/j.jweia.2022.105270.

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Rogowski, Krzysztof, Grzegorz Królak, and Galih Bangga. "Numerical Study on the Aerodynamic Characteristics of the NACA 0018 Airfoil at Low Reynolds Number for Darrieus Wind Turbines Using the Transition SST Model." Processes 9, no. 3 (2021): 477. http://dx.doi.org/10.3390/pr9030477.

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A symmetrical NACA 0018 airfoil is often used in such applications as small-to-medium scale vertical-axis wind turbines and aerial vehicles. A review of the literature indicates a large gap in experimental studies of this airfoil at low and moderate Reynolds numbers in the previous century. This gap has limited the potential development of classical turbulence models, which in this range of Reynolds numbers predict the lift coefficients with insufficiently accurate results in comparison to contemporary experimental studies. Therefore, this paper validates the aerodynamic performance of the NAC

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Rodríguez-Sevillano, Ángel Antonio, María Jesús Casati-Calzada, Rafael Bardera-Mora, et al. "Exploring the Effectiveness of Visualization Techniques for NACA Symmetric Airfoils at Extremely Low Reynolds Numbers." Fluids 8, no. 7 (2023): 207. http://dx.doi.org/10.3390/fluids8070207.

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This article aims to highlight the importance of utilizing flow visualization techniques in the preliminary analysis of streamlined and bluff bodies, especially the potential use of visualization with ink in a water channel as a tool for a preliminary approach during fluid mechanics analysis. According to this, the study compares the results obtained using a classical flow visualization technique, ink injection in water, with those obtained through the employment of a laser-based measurement and visualization technique, called PIV, in a low-speed wind tunnel. The article briefly presents both

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Goman, Oleg, Andrii Dreus, Anton Rozhkevych, and Krystyna Heti. "Aerodynamic improvement of Darrieus wind turbine." IOP Conference Series: Earth and Environmental Science 897, no. 1 (2021): 012001. http://dx.doi.org/10.1088/1755-1315/897/1/012001.

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Abstract Until recently, vertical-axis wind turbines are less extensively developed in wind energetics. At the same time, there are a number of advantages in turbines of such type like their independence from the change of wind direction, lower levels of aerodynamic and infrasound noises, higher structural reliability (compared to horizontal engines), etc. With these advantages, vertical-axis wind turbines demonstrate promising capacities. Inter alia, the productiveness of such turbines can be refined through the aerodynamic improvement of the structure and comprehensive optimization of the ro

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Sibagariang, Yogie P., Wahyu Hamdani, Koki Kishinami, and Himsar Ambarita. "Effect number of blades on the performance of h-Darrieus wind turbine with NACA 0018 air foil." IOP Conference Series: Materials Science and Engineering 1122, no. 1 (2021): 012078. http://dx.doi.org/10.1088/1757-899x/1122/1/012078.

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Rogowski, Krzysztof, Robert Flemming Mikkelsen, Jan Michna, and Jan Wiśniewski. "Aerodynamic performance analysis of NACA 0018 airfoil at low Reynolds numbers in a low-turbulence wind tunnel." Advances in Science and Technology Research Journal 19, no. 2 (2024): 136–50. https://doi.org/10.12913/22998624/195556.

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Hamdani, Wahyu, Hendrik V. Sihombing, Himsar Ambarita, and Koki Kishinami. "Effect of Tip Speed Ratio on the Performance of H-Darrieus Wind Turbine with NACA 0018 Airfoil." IOP Conference Series: Materials Science and Engineering 851 (May 30, 2020): 012033. http://dx.doi.org/10.1088/1757-899x/851/1/012033.

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Lesovoy, Ilya, Ron Efrati, and Oksana Stalnov. "Experimental investigation of instantaneous lift on NACA 0018 airfoil section due to a non-harmonic pitching motion." Journal of Fluids and Structures 125 (March 2024): 104003. http://dx.doi.org/10.1016/j.jfluidstructs.2023.104003.

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Pranatal, Erifive, and Renanda Bayu Harsi. "Numerical Study of The Airfoil Pitch Angle on The Darrieus-Savonius Combination Turbine." Journal of Applied Sciences, Management and Engineering Technology 2, no. 1 (2021): 39–45. http://dx.doi.org/10.31284/j.jasmet.2021.v2i1.2113.

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AbstractThe Darrieus turbine is used as an ocean current converter to generate renewable electrical energy. One way to improve turbine performance is to determine the optimal pitch angle. Therefore, the purpose of this study was to determine the optimal pitch angle of the NACA 0018 airfoil with angle variations of -6°, -2°, 0° and 2°. Numerical method with the help of Ansy Fluent software was carried out for the construction of the turbine. The result of this research is that the angle of 2° produces the largest coefficient of power and torque compared to other angles. This happens because the

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De Pratti, Giovanni Maria. "Airfoil to Improve Aerodynamic Performance OF Aileron Reduced Spanwise in Combat Helicopter." E3S Web of Conferences 197 (2020): 11003. http://dx.doi.org/10.1051/e3sconf/202019711003.

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Combat helicopters frequently operate in the part of Planetary Boundary Layer (PBL) characterised by the presence of dust and many other aggressive agents, particularly, in desertic areas and in marine sites, so the aerodynamic performance of their ailerons reduced spanwise, carrying out weapon systems, may be reduced within unacceptable values and consequent relevant risks for the stability of the copter. According to some experts, ailerons for weapon systems of helicopter are not involved in the global lift of the copter, but their operative function is only to carry the combat systems..Neve

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