• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Renewable Energy Development >Aerodynamic analysis of backward swept in HAWT rotor blades using CFD
【24h】

Aerodynamic analysis of backward swept in HAWT rotor blades using CFD

机译：使用CFD分析HAWT转子叶片后掠的空气动力学分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aerodynamical design of backward swept for a horizontal axis wind turbine blade has been carried out to produce more power at higher wind velocities. The backward sweep is added by tilting the blade toward the air flow direction. Computational Fluid Dynamics (CFD) calculations were used for solving the conservation equations in one outer stationary reference frame and one inner rotating reference frame, where the blades and grids were fixed in reference to the rotating frame. The blade structure was validated using Reynolds Averaged Navier-Stokes (RANS) solver in a test case by the National Renewable Energy Laboratory (NREL) VI blades results. Simulation results show considerable agreement with the NREL measurements. Standard K-ε turbulence model was chosen for simulations and for the backward swept design process. A sample backward sweep design was applied to the blades of a Horizontal Axis Wind Turbine (HAWT) rotor, and it is obtained that although at the lower wind velocities the output power and the axial thrust of the rotor decrease, at the higher wind velocities the output power increases while the axial thrust decreases. The swept blades have shown about 30 percent increase in output power and about 12 percent decrease in thrust at the wind speed of 14 m/s. Article History : Received June 23 rd 2018; Received in revised form Sept 16 th 2018; Accepted October 1 st 2018; Available online How to Cite This Article : Salari, M.S., Boushehri, B.Z. and Boroushaki, M. (2018). Aerodynamic Analysis of Backward Swept in HAWT Rotor Blades Using CFD.
机译：已经进行了水平轴风力涡轮机叶片后掠的空气动力学设计，以在更高的风速下产生更多的功率。通过使叶片向空气流动方向倾斜来增加向后扫掠。计算流体动力学（CFD）计算用于求解一个外部固定参考框架和一个内部旋转参考框架中的守恒方程，其中叶片和网格相对于旋转框架固定。国家可再生能源实验室（NREL）VI叶片结果在测试案例中使用雷诺平均Navier-Stokes（RANS）求解器验证了叶片结构。仿真结果显示与NREL测量相当一致。选择标准K-ε湍流模型进行仿真和后向扫频设计过程。将样本后掠设计应用于水平轴风力涡轮机（HAWT）转子的叶片，可以得出，尽管在较低的风速下，转子的输出功率和轴向推力会减小，而在较高的风速下，输出功率增加而轴向推力减小。在风速为14 m / s时，扫掠叶片显示出输出功率增加了约30％，推力减少了约12％。文章历史：于2018年6月23日收到;于2018年9月16日收到修订版; 2018年10月1日接受;在线提供如何引用本文：萨拉里（Salari），M.S.，布谢里（BouZehri），B.Z.和Boroushaki，M.（2018）。使用CFD分析HAWT转子叶片中后掠的空气动力学分析。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号