Scaling Effects On Flow Field And Ice Accretion For A Rotating Wind Turbine Blade

The attention for a wind power-generator has been attracted as one of the solutions for the environmental problems. When a wind turbine is operated in winter, supercooled water droplets impinge on the blade surface, and as the result ice accretes around the leading edge. It is well known that the occurrence of ice accretion on the wind turbine blade can lead to the severe deterioration of aerodynamic performance. However, the experiment is difficult, because it is not easy to create repeatedly the accretion conditions in a laboratory. Therefore, CFD is expected as a useful tool to predict and investigate the phenomena. In the present study, we develop the ice accretion code, and apply it to the MEL wind turbine blade. From the computational results, the shape of the ice-accreted blade and the deterioration of aerodynamic performance are numerically investigated.

Download Full-text

Study of Ice Accretion on Horizontal Axis Wind Turbine Blade Using 2D and 3D Numerical Approach

IEEE Access ◽

10.1109/access.2020.3022458 ◽

2020 ◽

Vol 8 ◽

pp. 166236-166245

Author(s):

Jia Yi Jin ◽

Muhammad Shakeel Virk ◽

Qin Hu ◽

Xingliang Jiang

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Numerical Approach ◽

Wind Turbine Blade ◽

Horizontal Axis ◽

Ice Accretion ◽

Horizontal Axis Wind Turbine ◽

2D And 3D

Download Full-text

Conductive Polymer-based TDR Sensing Ice Accretion for Wind Turbine Blade

10.12783/shm2015/38 ◽

2015 ◽

Author(s):

QUAN GAO ◽

MAIRE KELLEY ◽

XIONG YU

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Conductive Polymer ◽

Wind Turbine Blade ◽

Ice Accretion

Download Full-text

Effect of Wind Turbine Blade Profile Symmetry on Ice Accretion

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.863.229 ◽

2017 ◽

Vol 863 ◽

pp. 229-234

Author(s):

Muhammad S. Virk

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Numerical Study ◽

Leading Edge ◽

Wind Turbine Blade ◽

Ice Accretion ◽

Blade Profile ◽

Droplet Behavior ◽

Ice Conditions ◽

Airflow Field

A multiphase numerical study has been carried out to understand the effects of wind turbine blade profile (airfoil) symmetry on resultant ice accretion. Two symmetric (NACA 0006 & 0012) and two non-symmetric airfoils (NACA 23012 & N-22) were used for this preliminary study. Based upon the airflow field calculations and super cooled water droplets collision efficiency, the rate and shape of accreted ice was simulated for rime ice conditions. Analysis showed higher air velocity along top surface of the non-symmetric airfoils as compared to symmetrical airfoils that also effects the droplet behavior and resultant ice growth. Results show that change in blade profile symmetry effects the resultant ice accretion. For symmetric airfoils, more streamlines ice shapes were observed along leading edge as compared to non- symmetric airfoils.

Download Full-text