摘要
涡轮叶片的型线设计对涡轮钻具的性能影响很大。以外径为127 mm地质钻探用涡轮钻具为例,采用五次多项式来设计涡轮叶片的型线,使用SOLIDWORKS三维造型软件绘制了涡轮叶片的三维模型,并导入ANSYSFLOTRAN CFD模块,对不同粘度下的涡轮叶片的水力性能进行了分析,获得了较为直观的速度场和压力场分布状况。结果证明,通过CFD分析,可以很好地将叶片型线的缺陷和不同状态下的涡轮钻具水力性能展现出来,对涡轮叶片的水力性能预测具有指导作用。
The shape of turbine blade has great impact on the performance of turbodrills. Take the example of turbodrill with diameter of 127 mm for geological drill; it is proposed to determine the configuration of the blade by quintic polynomi- al. Solidworks 3D modeling software was used in drawing three-dimensional model of the turbine blades. ANSYS FLOTRAN CFD was imported into the model, and hydraulic performances of the turbine blades under different viscosity were analyzed. From this simulation, abundant data of internal flow field have been obtained. Under CFD analysis, it confirms that the de-fects and hydraulic performance of turbodrill under different conditions are well demonstrated, which has guiding role for prediction of blade hydraulic performance.
出处
《探矿工程（岩土钻掘工程）》
2012年第11期29-32,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
国家国际合作项目"万米深孔高温高压取心涡轮钻具及其应用技术"(2010DFR70920)
国家深部探测专项课题"科学超深井钻探技术方案预研究"(201011063)
关键词
高温高压
涡轮钻具
叶片
造型
流场
high temperature and high pressure
turbodrill
blade
shape
flow field
