Legendre Daniel, Antunes Pedro, Bock Eduardo, Andrade Aron, Biscegli José F, Ortiz Jayme Pinto
Institute Dante Pazzanese of Cardiology, Escola Politécnica, University of São Paulo, São Paulo, SP, Brazil.
Artif Organs. 2008 Apr;32(4):342-8. doi: 10.1111/j.1525-1594.2008.00552.x.
In the development of a ventricular assist device, computational fluid dynamics (CFD) analysis is an efficient tool to obtain the best design before making the final prototype. In this study, different designs of a centrifugal blood pump were developed to investigate flow characteristics and performance. This study assumed the blood flow as being an incompressible homogeneous Newtonian fluid. A constant velocity was applied at the inlet; no slip boundary conditions were applied at device wall; and pressure boundary conditions were applied at the outlet. The CFD code used in this work was based on the finite volume method. In the future, the results of CFD analysis can be compared with flow visualization and hemolysis tests.
在心室辅助装置的研发过程中，计算流体动力学（CFD）分析是在制作最终原型之前获得最佳设计的有效工具。在本研究中，开发了不同设计的离心式血泵以研究流动特性和性能。本研究假定血流为不可压缩的均匀牛顿流体。在入口处施加恒定速度；在装置壁处应用无滑移边界条件；在出口处应用压力边界条件。本工作中使用的CFD代码基于有限体积法。未来，CFD分析的结果可与流动可视化和溶血试验结果进行比较。
