燃料噴射弁のうず巻室内の流れ(第1報)

概要

論文の詳細を見る
Actual observation is very important measures for investigation and this is no exception in our study. The quite different flow from two dimensional thought is observed in the swirl chamber, that is, the secondary flow is obviously created, even outside the boundary layer, by the wall and affects more seriously the energy loss in a chamber, especially in which radial velocity component is small compared with swirl component, such as swirl atomizers. The present study is an approximate analysis based on the assumptions that the flow in a chamber is three dimensional, the circulation outside the boundary layer is not constant and the Pohlhausen's velocity profile can be applied inside the boundary layer. The variation of radial velocity outside the boundary layer is calculated by some simple example. It is found that even when the Reynolds number by radial velocity at inlet is more than 100,the space occupied by outward flow appears sometimes, that depends on the shapes of the swirl chamber. This can be also verified by experiment.
一般社団法人日本機械学会の論文
1955-04-25