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Titolo:
Computational fluid dynamics analysis of a centrifugal blood pump with washout holes
Autore:
Tsukamoto, Y; Ito, K; Sawairi, T; Konishi, Y; Yamane, T; Nishida, M; Masuzawa, T; Tsukiya, T; Endo, S; Taenaka, Y;
Indirizzi:
Nikkiso Co Ltd, Shizuoka Plant, Ctr Res & Dev, Haibara, Shizuoka 4210496, Japan Nikkiso Co Ltd Haibara Shizuoka Japan 4210496 ra, Shizuoka 4210496, Japan MITI, Mech Engn Lab, Tsukuba, Ibaraki 305, Japan MITI Tsukuba Ibaraki Japan 305 Mech Engn Lab, Tsukuba, Ibaraki 305, Japan Ibaraki Univ, Ibaraki, Osaka, Japan Ibaraki Univ Ibaraki Osaka JapanIbaraki Univ, Ibaraki, Osaka, Japan Natl Cardiovasc Ctr, Osaka, Japan Natl Cardiovasc Ctr Osaka JapanNatl Cardiovasc Ctr, Osaka, Japan
Titolo Testata:
ARTIFICIAL ORGANS
fascicolo: 8, volume: 24, anno: 2000,
pagine: 648 - 652
SICI:
0160-564X(200008)24:8<648:CFDAOA>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLOW VISUALIZATION; CLINICAL-EXPERIENCE; HEMOLYSIS TESTS; DESIGN METHODS; NIKKISO;
Keywords:
centrifugal blood pump; computational fluid dynamics analysis; flow visualization tests; washout holes; thrombogenecity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Tsukamoto, Y Nikkiso Co Ltd, Shizuoka Plant, Ctr Res & Dev, 498-1 Shizutani, Haibara, Shizuoka 4210496, Japan Nikkiso Co Ltd 498-1 Shizutani Haibara Shizuoka Japan 4210496
Citazione:
Y. Tsukamoto et al., "Computational fluid dynamics analysis of a centrifugal blood pump with washout holes", ARTIF ORGAN, 24(8), 2000, pp. 648-652

Abstract

The authors studied avoidance of coagulation occurrence using computational fluid dynamics (CFD) analysis from the fluid dynamical point of view. Concerning centrifugal pumps, blood coagulation sometimes occurs at the regionbehind the impeller where the flow is generally stagnant. Therefore, we conducted a thorough study with the specimen pump with and without washout holes, mocking up the Nikkiso HPM-15. As the result, the model with washout holes indicated that the fluid rotates rapidly at the vicinity of the shaft and generates washout effects near the stationary rear casing. On the otherhand, the model without washout holes showed that fluid cannot be quickly shipped out of the area behind the impeller and rotates mildly around the shaft. To clarify the moving relations between the impeller and the fluid, validation studies by comparing the results of CFD analysis and flow visualization experiments are ongoing; thus far, the studies show that CFD resultsare similar to the results from flow visualization experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 08:20:49