Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Review of Numerical and Experimental Studies on Flow Characteristics around A Straight-bladed Vertical Axis Wind Turbine and Its Performance Enhancement Strategies
https://orcid.org/0000-0001-8658-5801
Abstract Based on the orientation of the rotor, horizontal axis wind turbines (HAWTs) and vertical axis wind turbines (VAWTs) are two broad families of wind turbines in the world. The HAWT is today’s mainstream wind turbine type that has been widely used. Nevertheless, there continues to be widespread interest in VAWTs in recent years because of their unparalleled advantages over HAWTs such as simple and compact design, constant operation regardless of the wind direction, lower rotation speed, lower noise, etc. However, due to their complex unsteady aerodynamics, VAWTs are generally less efficient than HAWTs, resulting in a lower efficiency of energy conversion. To improve the airflow over the blade surface and thus enhance the aerodynamic performance of VAWTs, a wide variety of different types of flow control strategies (active or passive) have been developed and implemented over the years. The purpose of this paper is to provide a survey of recent numerical and experimental studies regarding the effectiveness of different passive flow control methods for manipulating the flow field around the SB-VAWT blade in order to enhance its aerodynamic performance. Special attention has been devoted to comparing and assessing these passive flow control techniques with respect to their underlying mechanism, effectiveness, and operational complexity. Then, identified research gaps and suggestions for future research are also presented.
Review of Numerical and Experimental Studies on Flow Characteristics around A Straight-bladed Vertical Axis Wind Turbine and Its Performance Enhancement Strategies
https://orcid.org/0000-0001-8658-5801
Abstract Based on the orientation of the rotor, horizontal axis wind turbines (HAWTs) and vertical axis wind turbines (VAWTs) are two broad families of wind turbines in the world. The HAWT is today’s mainstream wind turbine type that has been widely used. Nevertheless, there continues to be widespread interest in VAWTs in recent years because of their unparalleled advantages over HAWTs such as simple and compact design, constant operation regardless of the wind direction, lower rotation speed, lower noise, etc. However, due to their complex unsteady aerodynamics, VAWTs are generally less efficient than HAWTs, resulting in a lower efficiency of energy conversion. To improve the airflow over the blade surface and thus enhance the aerodynamic performance of VAWTs, a wide variety of different types of flow control strategies (active or passive) have been developed and implemented over the years. The purpose of this paper is to provide a survey of recent numerical and experimental studies regarding the effectiveness of different passive flow control methods for manipulating the flow field around the SB-VAWT blade in order to enhance its aerodynamic performance. Special attention has been devoted to comparing and assessing these passive flow control techniques with respect to their underlying mechanism, effectiveness, and operational complexity. Then, identified research gaps and suggestions for future research are also presented.
Review of Numerical and Experimental Studies on Flow Characteristics around A Straight-bladed Vertical Axis Wind Turbine and Its Performance Enhancement Strategies
https://orcid.org/0000-0001-8658-5801
Abstract Based on the orientation of the rotor, horizontal axis wind turbines (HAWTs) and vertical axis wind turbines (VAWTs) are two broad families of wind turbines in the world. The HAWT is today’s mainstream wind turbine type that has been widely used. Nevertheless, there continues to be widespread interest in VAWTs in recent years because of their unparalleled advantages over HAWTs such as simple and compact design, constant operation regardless of the wind direction, lower rotation speed, lower noise, etc. However, due to their complex unsteady aerodynamics, VAWTs are generally less efficient than HAWTs, resulting in a lower efficiency of energy conversion. To improve the airflow over the blade surface and thus enhance the aerodynamic performance of VAWTs, a wide variety of different types of flow control strategies (active or passive) have been developed and implemented over the years. The purpose of this paper is to provide a survey of recent numerical and experimental studies regarding the effectiveness of different passive flow control methods for manipulating the flow field around the SB-VAWT blade in order to enhance its aerodynamic performance. Special attention has been devoted to comparing and assessing these passive flow control techniques with respect to their underlying mechanism, effectiveness, and operational complexity. Then, identified research gaps and suggestions for future research are also presented.
Review of Numerical and Experimental Studies on Flow Characteristics around A Straight-bladed Vertical Axis Wind Turbine and Its Performance Enhancement Strategies
Sun, Xiaojing (Autor:in) / Zhou, Donghai (Autor:in)
2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| BASE | 2015