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Inverse Design and CFD Investigation of Blood Pump Impeller

HaiDong Li
Thermal and Fluids Engineering Division, School of MPE, Nanyang Technological University, Singapore 639798

Weng Kong Chan
School of MPE, Nanyang Technological University, Singapore 639798

ABSTRACT

In this paper, a three-dimensional inverse design method using mean swirl specification is applied to the design of centrifugal blood pump impeller blades. CFD investigation of the passage flows is carried out to analyze the flow field and pressure generated across the blade. The results show that the possibility of blood cells' damage may not be increased when the pressure developed is increased. This technique can provide designers valuable insight on the development of efficient blood pump with reduced risk of blood traumatization.