遠心型血液ポンプ羽根車の軸支持部に生じる渦構造の数値解析(流体工学,流体機械)

概要

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For centrifugal pumps for artificial hearts, a magnetic drive and lightly loaded journal bearing system are often used to avoid leakage and to minimize the damage on blood cells. The rotor bearing rotates in a concentric casing without mechanical contact and Taylor vortices were observed in the clearance flow. The flow into the clearance has both axial and tangential components and exhibits a whirling motion. An experiment was carried out to investigate the effects of the inlet velocity components and the whirling motion of the rotor on the vortex structure. The present stydy reports about the results of numerical study on the vortex structure.
社団法人日本機械学会の論文
2009-06-25