基于MATLAB-UG的混流式水轮机叶片三维建模

针对冷却塔专用混流式水轮机流道狭长、叶片空间几何形状复杂,三维建模难度较大的问题,结合某冷却塔专用超低比转速水轮机设计工程案例,以转轮二元设计理论(ωu=0)为基础,利用MATLAB软件计算出转轮叶片的骨线,并对翼型骨线进行展开加厚,最后借助于UG软件的三维建模功能,生成光滑的三维叶片模型。结果表明,采用该方法进行转轮叶片的三维建模,所生成的叶片光顺、无褶皱,能够精确地反映出叶片的空间流性,提高了转轮叶片的生成效率和精度,可为后续开展水轮机的CFD分析和性能优化提供有力的支撑。

3D modeling of blades of Franics turbine based on MATLAB-UG

〖WT5”HZ〗Abstract:〓 〖WT5”BZ〗The special Franics turbine for cooling tower is characterized as long and narrow flow passage and complex geometric surface of blades, inducing difficulties for 3D modeling. Aiming at a turbine of super-low specific speed for a cooling tower, we calculate the skeleton line of runner blades by MATLAB based on dual-element design theory, and the skeleton line of blades are unfold and thicken. Finally smooth blade model is generated by the 3D modeling function of UG. The results show that the proposed method can generate smooth blades, which reflects the geometric features of blades accurately and improves the efficiency and accuracy of blades design. The results could provide support for CFD analysis and performance optimization of turbines.