Numerical investigation of volute tongue design on hemodynamic characteristics and hemolysis of the centrifugal blood pump

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dc.authoridLazoglu, Ismail/0000-0002-8316-9623|Aka, Ibrahim Basar/0000-0003-0009-8768
dc.authorwosidLazoglu, Ismail/ACH-4338-2022
dc.contributor.authorAka, Ibrahim Basar
dc.contributor.authorOzturk, Caglar
dc.contributor.authorLazoglu, Ismail
dc.date.accessioned2024-07-18T20:42:29Z
dc.date.available2024-07-18T20:42:29Z
dc.date.issued2021
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractIn the design of rotary blood pumps, the optimization of design parameters plays an essential role in enhancing the hydrodynamic performance and hemocompatibility. This study investigates the influence of the volute tongue angle as a volute geometric parameter on the hemodynamic characteristics of a blood pump. A numerical investigation on five different versions of volute designs is carried out by utilizing a computational fluid dynamics (CFD) software ANSYS-FLUENT. The effect of volute tongue angle is evaluated regarding the hydrodynamic performance, circumferential pressure distribution, the radial force, and the blood damage potential. A series of volute configurations are constructed with a fixed radial gap (5%), but varying tongue angles ranging from 10 to 50 degrees. The relative hemolysis is assessed with the Eulerian based empirical power-law blood damage model. The pressure-flow rate characteristics of the volute designs at a range of rotational speeds are obtained from the experimental measurements by using the blood analog fluid. The results indicate an inverse relationship between hydraulic performance and the tongue angle; at higher tongue angles, a decrease in performance was observed. However, a higher tongue angle improves the net radial force acting on the impeller. The pump achieves the optimized performance at 20 degrees of the tongue angle with the relatively high hydrodynamic performance and minor blood damage risk.en_US
dc.identifier.doi10.1007/s42452-021-04142-1
dc.identifier.issn2523-3963
dc.identifier.issn2523-3971
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85100611309en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/s42452-021-04142-1
dc.identifier.urihttps://hdl.handle.net/11411/7279
dc.identifier.volume3en_US
dc.identifier.wosWOS:000607175100001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Int Publ Agen_US
dc.relation.ispartofSn Applied Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCentrifugal Blood Pumpen_US
dc.subjectHennolysisen_US
dc.subjectNumerical Simulationen_US
dc.subjectVolute Designen_US
dc.subjectVolute Tongueen_US
dc.subjectFlow-Fielden_US
dc.subjectPerformanceen_US
dc.subjectSimulationen_US
dc.subjectDeviceen_US
dc.subjectModelsen_US
dc.subjectDamageen_US
dc.titleNumerical investigation of volute tongue design on hemodynamic characteristics and hemolysis of the centrifugal blood pumpen_US
dc.typeArticleen_US

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