うず巻ポンプの羽根入口における流動状態 : うず巻ポンプのキャビテーション発生状態と吸込性能の研究, 第1報

概要

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As the suction performance of a centrifugal pump is in close connection with the flow condition at the blade inlet, the absolute velocities and static pressures at the immediate front of the blade inlet of the test pump were measured by three-hole yaw probes on a wide range of discharge, prior to the tests on cavitation performance. After comparing these test results with those values in the case of potential flow obtained by the electrolytic liquid-bath method, growing process of the reverse flow from impeller passages to the suction pipe which occurs on partial flow-rate, its effects on the flow condition at the blade inlet, and the effects of change of the blade loading on the flow direction at the blade inlet are clarified. And the effects on the inlet flow condition caused by the separation zone on the shrouding surface are discussed.
一般社団法人日本機械学会の論文
1963-05-25