基于中弧线加厚的涡轮钻具叶型设计  

Design of Turbodrill Blade Profile Based on Camber Line Thickening

作　　者：龚彦[1] 王腾[1] 王一峰 吴聚 张吴镝 GONG Yan;WANG Teng;WANG Yifeng;WU Ju;ZHANG Wudi(School of Mechatronic Engineering,Southwest Petroleum University,Chengdu Sichuan 610500;School of Computer Science,Southwest Petroleum University,Chengdu Sichuan 610500;Sichuan Aerospace Fiberhome Servo Control Technology Co.,Ltd.,Chengdu Sichuan 611130)

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]西南石油大学计算机科学学院,四川成都610500 [3]四川航天烽火伺服控制技术有限公司,四川成都611130

出　　处：《河南科技》2021年第28期61-64,共4页Henan Science and Technology

基　　金：西南石油大学第20期课外开放实验(2020KSZ03005);石油天然气装备教育部重点实验室开放基金(OGE201702-01)。

摘　　要：在常采用的由特定控制点直接求解涡轮钻具叶型型线的设计方法中,若控制点选取不佳,则较难设计出性能优良的叶型。通过控制点先设计叶型的中弧线,再由中弧线进行叶型加厚,易设计出满足要求的叶型。首先在涡轮钻具叶型进出口建立了4个已知条件,根据这4个已知条件选择了三次曲线进行中弧线设计,并求解出三次曲线中弧线的具体表达式。其次,研究了已有翼型数据沿该中弧线进行加厚的方法,求解叶型吸力面和压力面曲线包络点的坐标得到了叶型数据。最后,结合工程实际,选择设计参数,采用该方法设计了某型涡轮钻具叶型,并采用FLUENT软件对设计的叶型进行流场仿真。结果表明,所设计的叶型具有良好的特性,证明了该方法的可行性。In the design method of directly solving turbodrill blade profile by particular control point, if select not fine control point,design well performance blade profile is difficult. But,design camber line at first by control point. Then,proceed to thicken blade profile along camber line. It’s easy to design satisfied blade profile. In this paper, four known conditions are established at the inlet and outlet of the blade profile of turbodrill. According to these four known conditions, the cubic curve is selected for the middle arc design, and the specific expression of the middle arc of the cubic curve is solved. Then, the method of thickening the existing airfoil data along the middle arc is studied, the coordinates of the curve envelope points of the airfoil suction surface and pressure surface are solved, and the airfoil data are obtained. Finally, combined with the engineering practice, the design parameters are selected, the blade profile of a turbodrill is designed by this method, and the flow field of the designed blade profile is simulated by FLUENT software. The results show that the designed blade profile has good characteristics, which proves the feasibility of this method.

关 键 词：涡轮钻具 中弧线 三次曲线 叶型 

分 类 号：TE921.2[石油与天然气工程—石油机械设备]