Results 81 to 90 of about 15,291 (184)

Study of Wake Interaction and Discrete Frequency Noise of a Forward Curved Fan [PDF]

, 2020
In order to clarify the physical mechanism of unpleasant fan noise, the discrete frequency noise (DFN) generated from a forward curved fan is evaluated quantitively based on the wake characteristics.
佐々木, 壮一
core  

Aeroacoustics of a coaxial rotor in level flight [PDF]

, 2008
The aeroacoustic characteristics of a coaxial system with teetering rotors in level forward °ight are com- pared to those of an equivalent articulated single rotor with the same solidity.
Brown, R.E., Kim, Hyo Wan, Duraisamy, K., Kim, H.W., Duraisamy, Karthikeyan, Brown, Richard   +5 more
core  

A physics-based model for wind turbine wake expansion in the atmospheric boundary layer

Analytical wind turbine wake models are widely used to predict the wake velocity deficit. In these models, the wake growth rate is a key parameter specified mainly with empirical formulations.
Porté-Agel, Fernando, Vahidi, Dara
core   +1 more source

Wind farm and environmental aerodynamics assessment using computational engineering [PDF]

, 2011
The aim of this thesis is the application of computational engineering software for the study of wind resource assessment of a wind farm as well as for establishing the range of influence of different numerical and physical parameters, including ...
Zoumprouli, Argyro
core  

Wind Farm Power Production Assessment: Introduction of a New Actuator Disc Method and Comparison with Existing Models in the Context of a Case Study

Applied Sciences, 2019
The aim of the present study is to perform a comparative analysis of two actuator disc methods (ACD) and two analytical wake models for wind farm power production assessment.
Nikolaos Simisiroglou, Heracles Polatidis, Stefan Ivanell   +2 more
doaj   +1 more source

Wake model of floating offshore wind farms considering platform motion

Applied Ocean Research
As floating offshore wind farms develop, platform motions induced by wind-wave loads become significant, leading to complex and unsteady wakes that traditional fixed-bottom wind turbine wake models cannot accurately capture.
Liye Zhao, Bing Bai, Feixiang Gong, Jundong Wang, Lei Xue, Shilin Wang, Zhihuan Zhao   +6 more
doaj   +1 more source

Qualification of Three Analytical Wake Models [PDF]

Journal of Mechanics Engineering and Automation, 2016
null Naima Charhouni, null Mohammed Sallaou, null Abdelaziz Arbaoui   +2 more
openaire   +1 more source

Mass Consistent, Analytical Near Wake Models for Wind Turbines

, 2021
A new 3-dimensional, analytical wake model is presented which includes improved 9 wake descriptions near the rotor plane when compared to existing models.
Cal, Raul Bayoán, Sadek, Zein
core  

Multi-mode interactions in vortex-induced vibrations of flexible curved/straight structures with geometric nonlinearities

, 2010
A general low-order fluid-structure interaction model capable of evaluating the multi-mode interactions in vortex-induced vibrations of flexible curved/straight structures is presented.
Narakorn Srinil, Srinil, N.
core   +1 more source

Investigation of Turbulence Intensity Effects on Tidal Turbine Wakes Through the BEM–CFD Method

Journal of Marine Science and Engineering
The wake characteristics of tidal turbines are significantly influenced by turbulence intensity (TI) and flow velocity in the marine environment. This study employs the Blade Element Momentum (BEM)–CFD method to model two-bladed horizontal tidal turbine ...
Erhu Hou, Yang Li, Lining Zhu, Yanan Wu, Jie Ding, He Wu   +5 more
doaj   +1 more source