遠心羽根車内におけるはく離流れの特異点法による解析と,これを用いた羽根出口端削除による性能変化の考察

概要

論文の詳細を見る
Separated flows in a centrifugal impeller are analyzed by using a singularity method on the assumption that the absolute flow is two-dimensional, steady, imcompressible, inviscid, and irrotational. By using an iterative method, the boundary conditions on the surface of separated region is applied exactly on the surface; a non-linear theory. From the angular momentum relations, it is shown that the most reasonable flow is obtained in the case when the separated region terminates with a cusped form. The velocity field and the pressure distributions are given for various flow rated and assumed separation points. The decrease in head is larger for upstream separation. Over/under filing effects are discussed by applying the present method on the assumption that the flow is separated at the trailing corners of thick vanes.
一般社団法人日本機械学会の論文
1989-04-25