StarCCm+：rotor37涡轮叶片全六面体网格划分

星空caer

2023年9月25日 11:49

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本文基于StarCCm+涡轮机械网格功能对rotor37涡轮叶片划分全六面体网格，涡轮机械网格操作使用基于椭圆偏微分方程的方法生成流动对齐的六面体网格。此操作仅用于串行执行。

Turbomachinery applications with axial blades typically require a flow-aligned, structured mesh. This type of mesh has implicit connectivity and a fixed number of vertex or face neigh bors, leading to a more accurate solution. Unlike structured meshes, unstructured meshes can contain any type of cell and no defined connectivity between the cells.
Typically a structured mesh has a lower cell count whilst allowing for the same solution accuracy and since the connectivity is implicit the solver is much more efficient.
The operation supports axial blade geometries, which can include a tip clearance near the hub or shroud that is, a gap between the blade tip and the hub or the shroud. If present, the tip gap clearance can be eitherconstant or variable.
The Turbomachinery Mesh operation generates a flow-aligned hexahedral mesh using a method based on elliptical partial difference equations. This operation is only for serial execution.
The Turbomachinery Mesh operation requires you to set several parameters that define the mesh distribution along the blade profile and along the spanwise and pitchwise directions:

带有轴向叶片的涡轮机械应用通常需要流动对齐的结构化网格。这种类型的网格具有隐式连接和固定数量的顶点或面邻居，从而获得更准确的解决方案。与结构化网格不同，非结构化网格可以包含任何类型的单元，并且单元之间没有定义的连接。
通常，结构化网格具有较低的单元数，同时允许相同的求解精度，并且由于连通性是隐式的，因此求解器的效率要高得多。
该操作支持轴向叶片几何形状，其可包括轮毂或护罩附近的叶尖间隙，即叶尖与轮毂或护罩之间的间隙。如果存在，叶尖间隙可以是恒定的或可变的。
涡轮机械网格操作使用基于椭圆偏微分方程的方法生成流动对齐的六面体网格。此操作仅用于串行执行。
涡轮机网格操作要求您设置几个参数，这些参数定义了沿叶片轮廓以及沿翼展方向和变桨方向的网格分布：