遠心羽根車内におけるはく離流れの自由流線理論による解析

概要

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The flow in a logarithmic impeller with trailing edge separation is analysed by using a conformal mapping method. The problem is linearised by assuming that the thickness of the separated region is small. The flow can be determined by specifying the location of the separation point, and by the application of the condition that there should be no singularity at the closure point. The latter condition results in the location of the closure point shortly downstream of the trailing edge. It is shown that the head is significantly reduced by the separation. Discussions are made about the angular momentum conservation relations for a few models and it is found that the conservation relation is better satisfied for those cases with a thinner separated region, without much dependence on the model used.
一般社団法人日本機械学会の論文
1988-03-25