Computational fluid dynamic analyses to establish design process of centrifugal blood pumps.
Computational fluid dynamic analyses to establish design process of centrifugal blood pumps.
复制标题
计算流体动力学分析建立离心血泵的设计过程。
作者：
Y. Miyazoe;T. Sawairi;K. Ito;Y. Konishi;T. Yamane;M. Nishida;T. Masuzawa;K. Takiura;Y. Taenaka
为了建立离心血泵的定量、高效设计理论，将计算流体动力学（CFD）分析与流动可视化试验和溶血试验（主要针对Nikkiso离心血泵）的结果进行了比较。结果在速度矢量图上是一致的。CFD分析表明，差距越小，剪切应力越大。随着径向间隙的变化，这种趋势变得更大。溶血研究还表明，差距越小，溶血越大。计算流体力学分析与溶血试验的对比，可为今后血泵的研制提供参考。
To establish quantitative, efficient design theories for centrifugal blood pumps, computational fluid dynamics (CFD) analyses were compared to the results of flow visualization tests and hemolysis tests, mainly on the Nikkiso centrifugal blood pump. The results turned out to coincide in the velocity vector plots. CFD analysis revealed that the smaller the gap is, the greater the shear stress becomes. This tendency becomes even greater with a radial gap change. Hemolysis study also indicated that the smaller the gap is, the greater the hemolysis. CFD analysis in comparison with hemolysis tests could be a useful index for developing blood pumps in the future.