水中渦の発生とフローパターン

概要

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In this study, the factors affecting the occurrence of submerged vortices and their formation mechanism were clarified with reference to flow pattern and vortex position for various dimensions. The experiments indicate that (1) the flow pattern in the proximity of the pump suction bell and the formation pattern of vortices depend on the ratio of bell clearances against the rear and side walls in the sump, (2) submerged vortices are generated on the back wall when the edge of the bell is close to the back wall and occur on the side wall when the bell is located at a larger distance, and (3) critical velocity for vortex occurrence is affected to a great degree by the bottom clearance.
一般社団法人日本機械学会の論文
1991-11-25