Hydrodynamic characteristics of the helical flow pump

Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs
Kohei IshiiYusuke Abe

Abstract

The helical flow pump (HFP) was invented to be an ideal pump for developing the TAH and the helical flow TAH (HFTAH) using two HFPs has been developed. However, since the HFP is quite a new pump, hydrodynamic characteristics inside the pump are not clarified. To analyze hydrodynamic characteristics of the HFP, flow visualization study using the particle image velocimetry and computational fluid dynamics analysis were performed. The experimental and computational models were developed to simulate the left HFP of the HFTAH and distributions of flow velocity vectors, shear stress and pressure inside the pump were examined. In distribution of flow velocity vectors, the vortexes in the vane were observed, which indicated that the HFP has a novel and quite unique working principle in which centrifugal force rotates the fluid in the helical volutes and the fluid is transferred from the inlet to the outlet helical volutes according to the helical structure. In distribution of shear stress, the highest shear stress that was considered to be occurred by the shunt flow across the impeller was found around the entrance of the inlet helical volute. However, it was not so high to cause hemolysis. This shunt flow is thought to be improved by ...Continue Reading

References

Mar 27, 2001·The Annals of Thoracic Surgery·B P GriffithK C Butler
Jan 31, 2004·The Journal of Thoracic and Cardiovascular Surgery·Robert D DowlingO H Frazier
Aug 27, 2004·The New England Journal of Medicine·Jack G CopelandUNKNOWN CardioWest Total Artificial Heart Investigators
Feb 3, 2009·Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs·Yusuke AbeKou Imachi
Sep 29, 2009·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Kiyotaka FukamachiLeonard A R Golding
Aug 29, 2012·Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs·Yusuke AbeKou Imachi
Oct 11, 2013·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Yusuke AbeKou Imachi
Oct 11, 2013·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Kohei IshiiYusuke Abe

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Citations

Jul 13, 2018·The International Journal of Artificial Organs·Caglar OzturkIsmail Lazoglu
Sep 23, 2016·Journal of Biomechanical Engineering·Mohammad M Faghih, M Keith Sharp
Feb 22, 2016·Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs·Y SawaT Yamaoka
Mar 9, 2019·Biomechanics and Modeling in Mechanobiology·Mohammad M Faghih, M Keith Sharp

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