TY - JOUR
T1 - Three-dimensional flow analysis in VFP type artificial heart by unstructured grid
AU - Kawano, Satoyuki
AU - Kato, Takuma
AU - Nakahashi, Kazuhiro
AU - Shirai, Atsushi
AU - Hayase, Toshiyuki
AU - Yambe, Tomoyuki
AU - Nitta, Shin Ichi
AU - Hashimoto, Hiroyuki
PY - 2002
Y1 - 2002
N2 - 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.
AB - 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.
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U2 - 10.1115/PVP2002-1556
DO - 10.1115/PVP2002-1556
M3 - Conference article
AN - SCOPUS:0036383947
SN - 0277-027X
VL - 448
SP - 229
EP - 238
JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
JF - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
IS - 1
T2 - Computational technologies for Fluid/Thermal/Structural/Chemical Systems with Industrial Applications (2002 ASME Prssure Vessels and Piping Conference)
Y2 - 5 August 2002 through 9 August 2002
ER -