【摘要】 应用低Re数κ—ε模型 ,计算了离心叶轮外侧间隙内具有径向向内流动、间隙比G =0 .0 0 5和 0 .0 113时紊流流动的问题。计算结果显示 ,间隙内流动主要是径向流动。静止盘边界层内是径向向内流动 ,旋转盘边界层内是径向向外流动 ,不存在核心区更多还原

【Abstract】 The low Reynolds number κ-ε turbulence model is applied to calculate the flow field in the open narrow gap between rotating and stationary disk with radial inward flow at gap width ration G=0.005, 0.0113. The calculating results shows that the flow in gap is radial flow for the open rotating disk system, inward f low occur in the boundary layer on the stationary disk and outward flow in the boundary layer on the rotating disk. The core region does not exist in the gap.更多还原