Bladeless Heart Pump Design: Modeling and Numerical Analysis
In this paper, the design of a new type of heart pump is presented. The uniqueness of this pump concept is that the mechanical energy is transferred to the fluid by the rotation of flat disks without blades. Both theoretical and numerical analysis are used to determine the pump design parameters. Th...
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| Format: | Article |
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MDPI AG
2021-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/21/10177 |
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| author | Vedrana Markučič Mario Šavar Severino Krizmanić Bojan Biočina |
| author_facet | Vedrana Markučič Mario Šavar Severino Krizmanić Bojan Biočina |
| author_sort | Vedrana Markučič |
| collection | DOAJ |
| description | In this paper, the design of a new type of heart pump is presented. The uniqueness of this pump concept is that the mechanical energy is transferred to the fluid by the rotation of flat disks without blades. Both theoretical and numerical analysis are used to determine the pump design parameters. The pump design parameters are calculated using the Navier-Stokes equations. The application of computational fluid dynamics is used to define the geometric design. The pump head and flow have to be within strictly defined limits to ensure normal blood circulation. The negative impact of the pump on the blood must be minimal (no stagnation and recirculation zones, shear stress in the acceptable range). It is also important to achieve the smallest possible pump volume. For the pump operating point of ∆<i>p</i> = 65 mmHg, <i>Q</i> = 5.43 L/min, and <i>ω</i> = 6000 rpm, the design parameters are inner radius <i>R</i><sub>1</sub> = 12 mm, outer radius <i>R</i><sub>2</sub> = 15 mm, the distance between disk of <i>h</i> = 1 mm, and the number of disks is <i>n</i> = 6. The shear stress in the rotor is in range 46–108 Pa and the pump residence time is 0.0194 s. |
| first_indexed | 2024-03-10T06:06:39Z |
| format | Article |
| id | doaj.art-856f2d002fb44682b5406e8279556060 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T06:06:39Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-856f2d002fb44682b5406e82795560602023-11-22T20:28:54ZengMDPI AGApplied Sciences2076-34172021-10-0111211017710.3390/app112110177Bladeless Heart Pump Design: Modeling and Numerical AnalysisVedrana Markučič0Mario Šavar1Severino Krizmanić2Bojan Biočina3Department of Fluid Mechanics, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaDepartment of Fluid Mechanics, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaDepartment of Fluid Mechanics, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaDepartment of Cardiac Surgery, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, 10000 Zagreb, CroatiaIn this paper, the design of a new type of heart pump is presented. The uniqueness of this pump concept is that the mechanical energy is transferred to the fluid by the rotation of flat disks without blades. Both theoretical and numerical analysis are used to determine the pump design parameters. The pump design parameters are calculated using the Navier-Stokes equations. The application of computational fluid dynamics is used to define the geometric design. The pump head and flow have to be within strictly defined limits to ensure normal blood circulation. The negative impact of the pump on the blood must be minimal (no stagnation and recirculation zones, shear stress in the acceptable range). It is also important to achieve the smallest possible pump volume. For the pump operating point of ∆<i>p</i> = 65 mmHg, <i>Q</i> = 5.43 L/min, and <i>ω</i> = 6000 rpm, the design parameters are inner radius <i>R</i><sub>1</sub> = 12 mm, outer radius <i>R</i><sub>2</sub> = 15 mm, the distance between disk of <i>h</i> = 1 mm, and the number of disks is <i>n</i> = 6. The shear stress in the rotor is in range 46–108 Pa and the pump residence time is 0.0194 s.https://www.mdpi.com/2076-3417/11/21/10177bladeless heart pumphemocompatibilitycomputational fluid dynamics |
| spellingShingle | Vedrana Markučič Mario Šavar Severino Krizmanić Bojan Biočina Bladeless Heart Pump Design: Modeling and Numerical Analysis Applied Sciences bladeless heart pump hemocompatibility computational fluid dynamics |
| title | Bladeless Heart Pump Design: Modeling and Numerical Analysis |
| title_full | Bladeless Heart Pump Design: Modeling and Numerical Analysis |
| title_fullStr | Bladeless Heart Pump Design: Modeling and Numerical Analysis |
| title_full_unstemmed | Bladeless Heart Pump Design: Modeling and Numerical Analysis |
| title_short | Bladeless Heart Pump Design: Modeling and Numerical Analysis |
| title_sort | bladeless heart pump design modeling and numerical analysis |
| topic | bladeless heart pump hemocompatibility computational fluid dynamics |
| url | https://www.mdpi.com/2076-3417/11/21/10177 |
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