Parametric analysis of model Savonius hydrokinetic turbines through experimental and computational investigations
TL;DR: In this article, the performance of the Savonius hydrokinetic turbine (SHT) has been evaluated through simulation and experimental and computational fluid dynamics (CFD) analysis.
About: This article is published in Energy Conversion and Management.The article was published on 2018-02-15. It has received 98 citations till now. The article focuses on the topics: Turbine.
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TL;DR: In this paper, a 2D unsteady simulation is performed for semicircular, Benesh, modified Bach and elliptical profiles keeping the overall rotor diameter in each case to be constant.
85 citations
TL;DR: In this paper, an experimental study was carried out to evaluate the performance of a Helical Savonius water rotor in an irrigation channel, and a new deflector system design was proposed.
67 citations
TL;DR: In this article, the authors proposed a novel porous deflector in front of the Savonius wind turbine to improve the performance of the wind turbine, which was specifically designed to minimize the severe effects of the complex wake zone created behind the conventional solid deflector.
59 citations
TL;DR: In this article, a review article focusing on the vertical-axis Savonius hydrokinetic turbines, which are primarily preferred for being simple, practical, and economical for low-load applications in low-income communities in remote areas.
53 citations
TL;DR: In this article, a new combined lift-drag (CLD) based blade design for a conventional two-bladed Savonius water turbine is presented, where the semicircular blade is replaced with a straight blade section starting from the turbine axis and ending with an airfoil blade section at the leading edge.
37 citations
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TL;DR: In this paper, two new two-equation eddy-viscosity turbulence models are presented, which combine different elements of existing models that are considered superior to their alternatives.
Abstract: Two new two-equation eddy-viscosity turbulence models will be presented. They combine different elements of existing models that are considered superior to their alternatives. The first model, referred to as the baseline (BSL) model, utilizes the original k-ω model of Wilcox in the inner region of the boundary layer and switches to the standard k-e model in the outer region and in free shear flows. It has a performance similar to the Wilcox model, but avoids that model's strong freestream sensitivity
15,459 citations
Journal Article•
7,568 citations
TL;DR: The material presented in this paper covers the method of describing the uncertainties in an engineering experiment and the necessary background material, as well as a technique for numerically executing uncertainty analyses when computerized data interpretation is involved.
6,868 citations
TL;DR: In this article, a Savonius rotor wind turbine was tested in the Vought Corporation Systems Division 4.9- x 6.1m Low Speed Wind Tunnel to determine aerodynamic performance.
Abstract: Fifteen configurations of a Savonius rotor wind turbine were tested in the Vought Corporation Systems Division 4.9- x 6.1-m Low Speed Wind Tunnel to determine aerodynamic performance. The range of values of the varied parameters was as follows: number of buckets, 2 and 3; nominal freestream velocity, 7 and 14 m/s; Reynolds number per meter, 4.32 x 10/sup 5/ and 8.67 x 10/sup 5/; rotor height, 1 and 1.5 m; rotor diameter (nominal), 1 m; bucket overlap, 0.0 to 0.1 m. The measured test variables were torque, rotational speed, and tunnel conditions. It is concluded that increasing Reynolds number and/or aspect ratio improves performance. The recommended configuration consists of two sets of two-bucket rotors, rotated 90 deg apart, with each rotor having a dimensionless gap width of 0.1 to 0.15.
381 citations
TL;DR: In this paper, a feed-forward back-propagation model based on Levenberg-Marquardt training algorithm was used for predicting electricity and environmental factors against energy consumption for municipal solid waste management.
345 citations