遠心ポンプ過渡運転時のキャビテーションに伴う非定常現象に関する研究 : 第1報, 吐出し弁急開閉時〔流体工学, 流体機械〕

概要

論文の詳細を見る
A series of studies on dynamic characteristics of noncavitating centrifugal pump were extended to cavitating case. Experimental study was carried out on transient behavior of cavitating centrifugal pump at the sudden opening/closure of discharge valve. Cavitation behavior was visualized during transient period of centrifugal pump by using high speed video camera. And instantaneous pressure and flow rate were measured at suction and discharge ports with rotational speed during the transient period. Unsteady pressure as well as flow rate was related to the time-dependent cavitation behavior. As a result of the present study, pressure fluctuation was found to occur due to water column separation or oscillating cavitation at rapid transient operations.
1997-12-25