Studi Numerik Pengaruh Deflektor Terhadap Kinerja Turbin Savonius Pada Kondisi Angin Rendah Di Janeponto, Sulawesi Selatan

Pakpahan, Angelia Trifosa (2026) Studi Numerik Pengaruh Deflektor Terhadap Kinerja Turbin Savonius Pada Kondisi Angin Rendah Di Janeponto, Sulawesi Selatan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Turbin angin Savonius merupakan salah satu jenis turbin angin sumbu vertikal yang memiliki kemampuan self-starting yang baik dan mampu beroperasi pada kondisi kecepatan angin rendah. Namun, performa aerodinamiknya masih relatif rendah akibat terbentuknya torsi negatif pada sisi returning blade, separasi aliran, dan wake di belakang rotor. Salah satu metode yang dapat digunakan untuk meningkatkan performa turbin adalah penggunaan deflektor sebagai perangkat pengendali aliran pasif (passive flow control device). Penelitian ini bertujuan menganalisis pengaruh geometri deflektor ganda terhadap karakteristik aerodinamik dan
performa turbin Savonius dua sudu pada kondisi kecepatan angin rendah. Analisis dilakukan secara numerik menggunakan Computational Fluid Dynamics (CFD) dengan pendekatan Sliding Mesh Method (SMM) dan model turbulensi SST.
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The Savonius wind turbine is a type of vertical-axis wind turbine that exhibits excellent self-starting capability and can operate effectively under low wind speed conditions. However, its aerodynamic performance remains relatively low due to the presence of negative torque on the returning blade, flow separation, and wake formation downstream of the rotor. One approach to improving turbine performance is the implementation of deflectors as passive flow-control devices. This study aims to investigate the effect of double-deflector geometry on the aerodynamic characteristics and performance of a two-bladed Savonius wind turbine under low wind speed conditions. Numerical simulations were conducted using Computational Fluid Dynamics (CFD) with the Sliding Mesh Method (SMM) and the SST k–ω turbulence model. The investigated configurations consisted of a baseline turbine without a deflector, a NACA 0015–flat plate configuration, and a flat plate–flat plate configuration. Simulations were performed at a wind speed of 3 m/s under various Tip Speed Ratio (TSR) conditions to evaluate the power coefficient (

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Turbin Angin Savonius, Deflektor Ganda, Karakteristik Aerodinamik, Koefisien Daya, Computational Fluid Dynamics (CFD), Sliding Mesh ========================================================================== Savonius Wind Turbine, Double Deflector, Passive Flow Control, Aerodynamic Characteristics, Power Coefficient, Computational Fluid Dynamics (CFD), Sliding Mesh Method
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General) T Technology > TJ Mechanical engineering and machinery > TJ820 Wind power T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Angelia Trifosa Pakpahan
Date Deposited:	31 Jul 2026 06:58
Last Modified:	31 Jul 2026 06:58
URI:	http://repository.its.ac.id/id/eprint/140422

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