Three-dimensional flow analysis in VFP type artificial heart by unstructured grid

Satoyuki Kawano, Takuma Kato, Kazuhiro Nakahashi, Atsushi Shirai, Toshiyuki Hayase, Tomoyuki Yambe, Shin Ichi Nitta, Hiroyuki Hashimoto

研究成果: Conference article査読

3 被引用数 (Scopus)


To effectively design the vibrating flow pump (VFP) for left ventricular assist device, the numerical codes were developed for three-dimensional blood flow based on the finite volume method. The numerical codes were also developed based on the artificial compressibility method by the use of unstructured grid. Three-dimensional numerical computations and the visualizations were made for flow patterns in the casing of VFP, which were closely connected with hemolysis and blood coagulation. We examined the three different inlet conditions, i.e., radial flow, flow considering the 2nd vibration mode of the jellyfish valve motion, and the swirling flow, to explore the suitable condition for preventing the hemolysis and the blood coagulation. It was found that the swirling flow could effectively decrease hemolysis. The effect of rhenlogy model of the blood flow was also studied in detail.

ジャーナルAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
出版ステータスPublished - 2002 10 12
イベントComputational technologies for Fluid/Thermal/Structural/Chemical Systems with Industrial Applications (2002 ASME Prssure Vessels and Piping Conference) - Vancouver, BC, Canada
継続期間: 2002 8 52002 8 9

ASJC Scopus subject areas

  • 機械工学


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