1110 気液二相流適用形遠心ポンプ羽根車の油膜法による限界流線の可視化(OS11-2 流体機械の諸問題,オーガナイズドセッション)

概要

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Centrifugal pumps have been utilized in various fields with the diversification of operating conditions because of the simple structure and the easy maintenance. In the present study, we have made limiting streamline observations for two types of tandem arrangement of double rotating cascades with identical large blade exit angle the different blade height by multi-colors oil film method. It was found that the limiting streamlines on the impeller surfaces with larger blade height are more complex compared with those with smaller blade height despite that the head performance of the impeller with larger blade height is better.
2009-11-06