离心式压缩机三元流动分析的流体力学基础(二)

• 机 构: 清华大学工程力学系流体力学教研组,
• 出 处: 化工与通用机械
• 发表日期: 1975年08期
• 关键词: 三元流动 离心式压缩机 回转面 准正交 子午面 压缩机轴 取子 流面 流体力学 流线

二、子午流面三元流动分析在r、θ、z座标系内,把压缩机轴线取为z轴,则θ=const的平面就是子午流面,而由子午流线绕z轴回转所成的曲面为回转面,如图7。最初曾假定流动是轴对称的,同时取子午流线与子午流线的法线为座标,在子午面内建立运动方程。轴对称假定相当于在回转面内

Second, the meridional flow surface ternary flow analysis In the r, θ, z coordinate system, the compressor axis is taken as the z-axis, the plane θ = const is the meridional flow surface, and the meridional flow around the z-axis rotation Into the surface of the rotating surface, shown in Figure 7. Initially it was assumed that the flow was axisymmetric and that the normal of the meridional and meridional flowlines was taken as the coordinate and the equations of motion were established in the meridional. Axisymmetry is assumed to be equivalent to the plane of revolution