Flow Evaluation and Hemolysis Analysis of BVAD Centrifugal Blood Pump by Computational Fluids Dynamics

Bumrungpetch, Jeerasit; Tan, Andy Chit; Liu, Shu-Hong; Luo, Xian-Wu; Wu, Qing-Yu; Yuan, Jian-Ping; Zhang, Ming-Kui

doi:http://dx.doi.org/10.5293/IJFMS.2014.7.1.034

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자료유형: 학술저널

저자정보: Bumrungpetch, Jeerasit Tan, Andy Chit Liu, Shu-Hong Luo, Xian-Wu Wu, Qing-Yu Yuan, Jian-Ping Zhang, Ming-Kui

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.7 No.1

발행연도: 2014.3

수록면: 34 - 41 (8page)

DOI: http://dx.doi.org/10.5293/IJFMS.2014.7.1.034

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Computational fluid dynamics (CFD) and particle image velocimetry (PIV) are commonly used techniques to evaluate the flow characteristics in the development stage of blood pumps. CFD technique allows rapid change to pump parameters to optimize the pump performance without having to construct a costly prototype model. These techniques are used in the construction of a bi-ventricular assist device (BVAD) which combines the functions of LVAD and RVAD in a compact unit. The BVAD construction consists of two separate chambers with similar impellers, volutes, inlet and output sections. To achieve the required flow characteristics of an average flow rate of 5 l/min and different pressure heads (left - 100mmHg and right - 20mmHg), the impellers were set at different rotating speeds. From the CFD results, a six-blade impeller design was adopted for the development of the BVAD. It was also observed that the fluid can flow smoothly through the pump with minimum shear stress and area of stagnation which are related to haemolysis and thrombosis. Based on the compatible Reynolds number the flow through the model was calculated for the left and the right pumps. As it was not possible to have both the left and right chambers in the experimental model, the left and right pumps were tested separately.

#Ventricular Assist device #LVAD #Blood Pump #Computational fluid dynamics #artificial heart #BVAD

참고문헌 (13)

참고문헌 신청

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