Results 11 to 20 of about 9,873,253 (312)
Effective Parameters Optimization of a Small Scale Gorlov Wind Turbine, Using CFD Method [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2023 In the present study, a Gorlov Vertical Axis Wind Turbine (VAWT) in small dimensions was numerically simulated using the Computational Fluid Dynamics (CFD) method.
Mohammad Akhlagi +3 more
doaj +1 more source
Contribution of lift-to-drag ratio on power coefficient of HAWT blade for different cross-sections
Open Engineering, 2022 The aim of this study is to integrate the best lift-to-drag ratio zone to chief the highest power coefficient for horizontal axis wind turbine (HAWT) blade.
Muhammad A. R. Yass +2 more
semanticscholar +1 more source
Enhancement of Wind Turbine Performance Using Air- Blowing Technique by Modified Strong Implicit Procedure (MSIP) Optimization Solver Method [PDF]
Engineering and Technology Journal, 2014 A powerful intensifier of friction in air flows affects the lift and drag coefficients, the flow separation plays a vital part in aerodynamic characteristics for technical applications.
Abdulhadi Mohammed Jawad +3 more
doaj +1 more source
Mathematical Problems in Engineering, 2021 For decades, maximum power coefficient limit, known as the Betz limit, has been accepted as a theoretical optimum value for wind turbine power extraction; nevertheless, some reports, exceeding this limit, have already been published.
J. González-Hernández +1 more
semanticscholar +1 more source
Energies, 2023 Small-scale vertical-axis wind power generation technologies such as Savonius wind turbines are gaining popularity in suburban and urban settings. Although vertical-axis wind turbines (VAWTs) may not be as efficient as their horizontal-axis counterparts,
Kumail Abdulkareem Hadi Al-Gburi +4 more
doaj +1 more source
The Coefficients of Powers of Bazilević Functions [PDF]
Mathematics, 2018 In the present work, a sharp bound on the modulus of the initial coefficients for powers of strongly Bazilević functions is obtained. As an application of these results, certain conditions are investigated under which the Littlewood-Paley conjecture holds for strongly Bazilević functions for large values of the parameters involved therein.
Nak Eun Cho +2 more
openaire +2 more sources
International Journal of Renewable Energy Development, 2021 This study focused on optimization of the power coefficient of floating offshore wind turbines (FOWTs) to maintain their wind power performance in order to overcome problems with the tilt angle resulting from an unstable wind turbine platform, which can ...
Wongsakorn Wisatesajja +2 more
doaj +1 more source
, 2021 A 0.6 m diameter, three-bladed, untwisted, fixed-pitch, and small horizontal axis wind turbine with tubercles was analysed using the Blade Element Momentum (BEM) Theory.
V. Damirez, G. Augusto
semanticscholar +1 more source
On the coefficients of symmetric power L-functions [PDF]
International Journal of Number Theory, 2018 We study the signs of the Fourier coefficients of a newform. Let [Formula: see text] be a normalized newform of weight [Formula: see text] for [Formula: see text]. Let [Formula: see text] be the [Formula: see text]th Fourier coefficient of [Formula: see text].
MEHER, J +2 more
openaire +4 more sources
Congruences for the coefficients of the powers of the Euler Product [PDF]
The Ramanujan Journal, 2019 Let $p_k(n)$ be given by the $k$-th power of the Euler Product $\prod _{n=1}^{\infty}(1-q^n)^k=\sum_{n=0}^{\infty}p_k(n)q^{n}$. By investigating the properties of the modular equations of the second and the third order under the Atkin $U$-operator, we determine the generating functions of $p_{8k}(2^{2α} n +\frac{k(2^{2α}-1)}{3})$ $(1\leq k\leq 3)$ and $
Julia Q. D. Du +2 more
openaire +2 more sources