高位垂直进气转静系盘腔内流场的数值研究

Numerical Study on Flow Field Between Rotating and Stationary Disks with High-positioned Air Inflow

对高位垂直进气的转静系旋转盘腔流场进行了数值模拟研究。研究结果表明:所研究的转静系旋转盘腔流场,转盘和静盘两个表面附近形成各自独立的边界层。r/b>0.4时,旋流系数β值随径向位置的增大呈减小趋势。r/b<0.4时,核心区同一径向位置处β值可视为常数,β值随径向位置的减小而减小。

The flow between rotating and stationary disks with high-positioned air inflow is investigated with numerical method. The results show separate boundary layers are formed on the rotor and stator. When r/b is more than 0.4, the relative rotational speed β increases as the radial position decreases. When r/b is less than 0.4, in the core, β on the same radial position could be considered as a constant, and in this area β decreases as the radial position decreases.