@article{oai:nagasaki-u.repo.nii.ac.jp:00023437,
 author = {孫, 自祥 and 石田, 正弘 and 坂口, 大作 and 植木, 弘信},
 issue = {647},
 journal = {日本機械学会論文集. B編},
 month = {Jul},
 note = {The ring groove arrangement was proposed to improve surge margin in a centrifugal blower. The inlet recirculation formed by the arrangement at small flow rates resulted in a significant decrease in the flow rate of the unstable flow inception at a small expense of the delivery pressure drop. The effect of inlet recirculation on the main through-flow in the impeller and the unstable flow suppression is analyzed by the 3-D turbulent flow calculation, and the calculated results are compared with the experimental ones. The critical flow incidence is about 7 degrees for the separation bubble formation at the blade-leading edge. In the tested impeller, the separation bubble on the blade suction surface extends alongthe blade leading edge from the blade root to a radial position of the root-mean-square radius at the stall limit flow rate. It is found that the surge suppression is mainly due to decrease in flow incidence at the blade-leading based on the inlet recirculation flow., 日本機械学會論文集. B編 66(647) p.1712-1718, 2000},
 pages = {1712--1718},
 title = {遠心羽根車入口循環流によるインデューサ失速の抑制 : 第2報, 失速抑制効果の数値解析},
 volume = {66},
 year = {2000}
}