An Eleven Parameter Axial Turbine Airfoil Geometry Model
An Eleven Parameter Axial Turbine Airfoil Geometry Model
复制标题
十一参数轴流式涡轮翼型几何模型
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
L. Pritchard
中科院分区：
文献类型：
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作者：
L. Pritchard
本文介绍了一个全面而又易于使用的轴流式涡轮机喷嘴和转子几何模型的数学推导和FORTRAN程序。为了在一个圆柱体上唯一地定义一个翼型，空气动力学家只需要指定叶片的数量，以及每个感兴趣的半径：轴向和切向弦、喉部、未覆盖的转弯、前缘和后缘半径、入口和出口叶片角度以及入口楔角。这些几何变量中有六个存在默认值，这在开始设计时很有用。吸力面和压力面都完全由解析函数描述。样本翼型包括演示叶片形状上的每个参数的影响。版权所有© 1985年由ASME
The mathematical derivation, and FORTRAN code, of a comprehensive but easy to use geometry model for axial flow turbine nozzles and rotors is presented. To uniquely define an airfoil on a cylinder the aerodynamicist need only specify the number of blades, and at each radius of interest: the axial and tangential chord, throat, uncovered turning, leading and trailing edge radii, inlet and exit blade angles, and inlet wedge angle. Default values exist for six of these geometric variables, which proves useful when starting a design. Both the suction and the pressure surfaces are described entirely by analytical functions. Sample airfoils are included that demonstrate the effect of each parameter upon blade shape.Copyright © 1985 by ASME