10kW直驱型风力机整机数值模拟分析

聂松辉; 许二涛; 朱柏林

doi:10.13433/j.cnki.1003-8728.2014.0607

10kW直驱型风力机整机数值模拟分析

doi: 10.13433/j.cnki.1003-8728.2014.0607

1.
湘潭大学,机械工程学院湘潭 411105

基金项目:

湖南省科技厅项目(2011GK3203)资助

详细信息

作者简介:
聂松辉(1968-)，教授，博士，硕士生导师，研究方向为机械运动学与动力学和机械方案创新设计，nsh@xtu.edu.cn

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出版历程
- 收稿日期: 2013-01-10
- 刊出日期: 2015-06-10

The Numerical Analysis of Full Machine of 10 kW Direct-drived Wind Turbine

1.
School of Mechanical Engineering,Xiangtan University,Xiangtan 411105

摘要

摘要: 基于SIMPLE算法,采用rNG k-ε湍流模型,结合有限体积法对流场的控制方程进行离散,运用ANSYS Workbench软件中的CFX模块和Static Structure模块进行流固耦合模拟,在考虑风力机机舱与塔架的影响下对风力机整机在4种不同风速下的流场特性和风力机运行过程中结构的应力应变进行模拟仿真,与无机舱和塔架情况下的流场特性进行了对比。结果表明:机舱和塔架的存在对流场的特性有明显的影响;叶片的风压分布在叶尖部位比较明显;风力机整机最大应力集中在叶片上距叶根2/3处;在风速增加的情况下,叶根与轮毂连接处的应力有比较明显的增加。
- 风力机整机 /
- 数值分析 /
- 流固耦合 /
- 流场特性
Abstract: The present research based on SIMPLE algorithm, and the numerical test used rNG k-ε turbulencemodel and dispersed control equations of flow field with the finite volume method. The test employed CFX moduleand the Static Structure module of ANSYS Workbench software to make fluid-structure coupling simulation. Throughthe simulation of full machine under the conditions of four wind speeds with considering the nacelle and tower, theflow field characteristics, the stress and strain of the structure in the operation process of wind turbine wereanalyzed, and compared with those without nacelle and tower. The results showed that the presence of the nacelleand tower had significant influence on the flow field characteristics; the pressure distribution of blades was obviousconcentrated on the tip position; the maximum stress of wind turbine concentrated on the blade where was abouttwo-thirds length from the blade root; with the increase of wind speed, the stress at the connection between bladeroot and wheel hub had a obvious increase.
- algorithms /
- boundary conditions /
- computer simulation /
- computer software

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参考文献(12)

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