TY -的A2 -李,Jingyin盟——Munsterjohann斯文AU -贝克尔,Stefan PY - 2018 DA - 2018/06/03 TI -墙压力和叶片表面压力侧槽鼓风机SP - 2308759六世- 2018 AB -侧槽鼓风机的压力场的结果复杂,内部流动机制。虽然已有壁面压力分布的实验研究，但对旋转系统，即叶片表面的压力了解甚少。在这项工作中，我们提出了一个测量非定常叶片表面压力在几个位置的实验装置。采集的数据将由侧通道壳体上额外测量的壁压力进行补充并与之进行比较。叶轮中集成了微型压力传感器。它经过改进，以确保传感器膜的冲洗和避免对流场的冲击。遥测系统用于将数据从旋转系统无线传输到数据记录仪。结果显示了时间分辨压力分布及其锁相系综平均。压力场的变化与叶轮机的整体压差和转速有关。由于测量数据的高时间分辨率，实现了关键流动现象的精确空间定位。 Low integral pressure differences show a nearly linear increase of the pressure in circumferential direction, while greater integral pressure differences evolve exponentially over the azimuth. The results confirm the circulatory flow theory. Different rotational speeds elicit a comparable behavior. The stripper is a dominant source for pressure fluctuations. Its individual geometric discontinuities are correlated to the flow field. Our results provide a deeper understanding of the flow phenomena in side channel blowers and the theory of pressure generation. Although the measurements were performed for only one type of side channel blower with a double-flow configuration and open blades, the energy transfer mechanism is the same for other modifications like single flow or closed blade versions. SN - 1023-621X UR - https://doi.org/10.1155/2018/2308759 DO - 10.1155/2018/2308759 JF - International Journal of Rotating Machinery PB - Hindawi KW - ER -