CFX涡轮增压器设计学习笔记BMBladeGenBladeModer.ppt

Kevin Wang Ch 1 BladeModeler叶型设计 旋转机械基础 坐标系 坐标系 坐标系 坐标系 The M-R? coordinate system is useful for thickness specification since it is a dimensional view. M-R?坐标系适合定义叶片厚度 The M’- ? coordinate system is useful since it permits the designer to view the blade-to-blade surface in a plane where blade angles are preserved. M-R?坐标系适合定义叶片角度。 The blade profile can be defined using the Angle/Thickness Model or the Pressure/Suction Mode. 叶片轮廓可以定义使用角/厚度模型或压力面/吸力面模式 叶片设计角度/厚度 模型 叶片设计压力/吸力模型 BladeGen1.新建 BladeGen1.新建：叶片初始化定义 可以定义包角、厚度、叶片数量 BladeGen1.新建：设计环境 BladeGen1.新建：Meridional View Curves can be defined as: 曲线可以被定义为： Piecewise Linear分段样条 Cubic Spline三次样条 Bezier贝塞尔曲线 Best Fit Polynomial最适合多项式 Arc Segment弧形段 BladeGen1.新建：Angle View CFX涡轮增压器气动开发 Kevin Wang * BladeModeler是一家专业、易用的工具的快速三维旋转机械组件的设计软件。 High Periodic Low Periodic Leading Edge Trailing Edge Tip Gap Inflow Outflow Shroud Hub 笛卡尔 子午面 叶面到叶片 M versus R*Theta M-Prime versus Theta 选择压轮类型，子午面主要参数和叶型设计角度/厚度还是压力/吸力模式。 定义压力面和吸力面主要参数 PS/SS Angle/Thickness Meridional View Auxilliary View Angle View Thickness View Curve defining beta Curve defining theta End Angle End Angle with Beta Slope = 0 Can define blade angle by: Wrap Angle Distribution (m-theta) Flow Angle Distribution (m-beta)