斜流ポンプに関する研究 : 羽根車損失の予測値と実測値の比較

概要

論文の詳細を見る
Using a five-hole pitot-tube with quick response, both upstream and downstream flow fields of a mixed-flow pump impeller were measured in order to make clear the hydraulic losses which arise in the fluid flow through an impeller. The hydraulic loss distributions at the downstream of the impeller were presented for two different specific speed impellers. The measured loss distributions were compared with the ones calculated by a simple prediction method. Moreover, the slip factors at impeller exit were also compared with the ones calculated by the existing formulae. As a result of the study, it was made clear that the ratio of the pressure rise by cascade effect to the one by centrifugal force effect is an important factor for the reasonable prediction of the hydraulic losses caused by a mixed-flow impeller.
一般社団法人日本機械学会の論文
1985-07-25