Fluid-Structure Analysis of Airfoils on the Small Wind Turbine

2012 ◽  
Vol 512-515 ◽  
pp. 613-616
Author(s):  
Li Min Qiao ◽  
Rui Gu ◽  
Feng Feng ◽  
Xue Shan Liu ◽  
Ying Jun Yang
Keyword(s):  
Wind Turbine ◽  
Unique Feature ◽  
Fluid Structure Interaction ◽  
Green Energy ◽  
Energy Resources ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Transition Prediction ◽  
Small Wind Turbine ◽  
Turbine Design

Green energy resources are more and more fashionable and focused. Among of them, small wind turbine is popular and with many customers because it has an unique feature . The design and calculation on thickness of airfoils were studied in order to raise its life and reduce weight. In the premise of strength, the lighter, the better. This paper studied the aerodynamic performance of the airfoil under the Low-Reynolds and analyzed fluid-structure interaction effect under three different attack angles. The numerical simulation approach addresses unsteady Reynolds-averaged N-Stokes solutions and covers transition prediction for unsteady mean flows. The computational result and the analysis show that the fluid-structure interaction is an important issue to consider while designing the wind turbine blade. The results may provide technical reference for the further wind turbine design.

Fluid Structure Interaction Simulation on the Seagull Airfoil of the Small Wind Turbine

2012 ◽  
Vol 546-547 ◽  
pp. 160-165
Author(s):  
Li Min Qiao ◽  
Xue Shan Liu ◽  
Yong Bo Yang ◽  
Yong Gang Jia ◽  
Xiao Lin Quan
Keyword(s):  
Wind Turbine ◽  
Fluid Structure Interaction ◽  
Great Influence ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Transition Prediction ◽  
Small Wind Turbine ◽  
Interaction Simulation ◽  
Low Reynolds ◽  
Turbine Design

For the blades of the small wind turbine working under the conditions of Low-Reynolds, the air viscosity has relatively great influence on them. The design and calculation on thickness of airfoils were studied in order to raise its life and reduce weight. In the premise of strength, the lighter, the better. This paper studied the aerodynamic performance of the airfoil under the Low-Reynolds and analyzed fluid-structure interaction effect at Reynolds number 600,000 under three different attack angles. The numerical simulation approach addresses unsteady Reynolds-averaged N-S solutions and covers transition prediction for unsteady mean flows. The computational result and the analysis show that the fluid-structure interaction is an important issue to consider while designing the wind turbine blade. The results may provide technical reference for the further wind turbine design.

scholarly journals Fluid–Structure Interaction Numerical Analysis of a Small, Urban Wind Turbine Blade

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1832 ◽  
Author(s):  
Michal Lipian ◽  
Pawel Czapski ◽  
Damian Obidowski
Keyword(s):  
Wind Turbine ◽  
Structural Strength ◽  
Fluid Structure Interaction ◽  
Point Of View ◽  
Operating Conditions ◽  
Strength Analysis ◽  
Fluid Structure ◽  
Rotor Aerodynamics ◽  
Structure Interaction ◽  
Small Wind Turbine

While the vast majority of the wind energy market is dominated by megawatt-size wind turbines, the increasing importance of distributed electricity generation gives way to small, personal-size installations. Due to their situation at relatively low heights and above-ground levels, they are forced to operate in a low energy-density environment, hence the important role of rotor optimization and flow studies. In addition, the small wind turbine operation close to human habitats emphasizes the need to ensure the maximum reliability of the system. The present article summarizes a case study of a small wind turbine (rated power 350 W @ 8.4 m/s) from the point of view of aerodynamic performance (efficiency, flow around blades). The structural strength analysis of the blades milled for the prototype was performed in the form of a one-way Fluid–Structure Interaction (FSI). Blade deformations and stresses were examined, showing that only minor deformations may be expected, with no significant influence on rotor aerodynamics. The study of an unorthodox material (PA66 MO polyamide) and application of FSI to examine both structural strength and blade deformation under different operating conditions are an approach rarely employed in small wind turbine design.

The Investigation of the Small Bionic Wind Turbine Based on the Seagull Airfoil

2011 ◽  
Vol 347-353 ◽  
pp. 3533-3539 ◽  
Author(s):  
Rui Gu ◽  
Jing Lei Xu ◽  
Yong Bo Yang
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Wind Turbine ◽  
Computational Result ◽  
Unique Feature ◽  
Aerodynamic Performance ◽  
Green Energy ◽  
Energy Resources ◽  
Small Wind Turbine ◽  
Low Reynolds

With the requirement of renewable energy and sustainable development, green energy resources are more and more fashionable and focused. Among of them, small wind turbine is popular and with many customers because it has an unique feature. For the blades of the small wind turbine working under the conditions of Low-Reynolds, the air viscosity has relatively greater influence on its aerodynamic performance. This is one of the greatest difficulties to design a small wind turbine. This paper studied the aerodynamic performance of the airfoil under the Low-Reynolds and designed a blade based on the airfoil of the seagull. The CFD computational result and the analysis show that the airfoil of the seagull is suitable for the special work circumstances of the small wind turbine, and it can be used for the further design of the blades. The results may provide technical reference for the wind turbine deign.

Fluid-structure interaction and stress analysis of a floating wind turbine

2021 ◽  
Vol 78 ◽  
pp. 102970
Author(s):  
B. Wiegard ◽  
M. König ◽  
J. Lund ◽  
L. Radtke ◽  
S. Netzband ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Stress Analysis ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Floating Wind Turbine

scholarly journals Fluid Structure Interaction Analysis of Horizontal Axis Wind Turbine

2020 ◽  
Vol 8 (5) ◽  
pp. 3478-3482
Keyword(s):  
Yield Strength ◽  
Wind Turbine ◽  
Aluminium Alloy ◽  
Structural Steel ◽  
Fluid Structure Interaction ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Strength Limit

Wind power is a clean energy source that we can rely on for long term use. A wind turbine creates reliable, cost effective pollution free energy. A Horizontal axis wind turbine (HAWT) with three blades having aerofoil profile NACA 2421 is modelled in CAD software and the performance of the turbine is investigated numerically using 3D CFD Ansys 18.1 software at rotor speeds varying from 1 to 7.5 Rad/sec at wind speeds ranging from 8 to 24 m/s. In order to ensure the turbine blades do not fail due to pressure loads and rotational forces, Fluid structure interaction is carried out by importing the surface pressure loads from CFD output on to static structural module, the rotational velocities are also imparted on the blades and FE analysis is carried out to estimate the equivalent von-Mises stress for structural steel as well as aluminium alloy. It is found that aluminium alloy blades are preferable than the structural steel blades. At high rotor speeds, stresses in the structural steel exceeding the yield strength limit. For aluminium alloy the stresses are below the yield strength limit.

scholarly journals FSI in Wind Turbines: A Review

2020 ◽  
Vol 8 (3) ◽  
pp. 37
Author(s):  
Yogesh Ramesh Patel
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Stokes Equations ◽  
Turbine Blades ◽  
Fluid Structure Interaction ◽  
Arbitrary Lagrangian Eulerian ◽  
Wind Turbine Blades ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Deformable Structure

This paper provides a brief overview of the research in the field of Fluid-structure interaction in Wind Turbines. Fluid-Structure Interaction (FSI) is the interplay of some movable or deformable structure with an internal or surrounding fluid flow. Flow brought about vibrations of two airfoils used in wind turbine blades are investigated by using a strong coupled fluid shape interplay approach. The approach is based totally on a regularly occurring Computational Fluid Dynamics (CFD) code that solves the Navier-Stokes equations defined in Arbitrary Lagrangian-Eulerian (ALE) coordinates by way of a finite extent method. The need for the FSI in the wind Turbine system is studied and comprehensively presented.

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