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TECHNICAL PAPERS

Computational Design of Vibration Pumping Device for Artificial Heart

[+] Author and Article Information
Satoyuki Kawano

Department of Aeronautics and Space Engineering, Tohoku University, Sendai 980-8579, Japane-mail: kawano@ad.mech.tohoku.ac.jp

Junko Yamakami, Kenjiro Kamijo

Institute of Fluid Science, Tohoku University, Sendai 980-8577, Japan

Hiroyuki Hashimoto

Ebara Research Co., Ltd., Fujisawa 251-8502, Japan

Tomoyuki Yambe, Shin-ichi Nitta

Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan

J. Pressure Vessel Technol 123(4), 525-529 (May 23, 2001) (5 pages) doi:10.1115/1.1388009 History: Received February 15, 2001; Revised May 23, 2001
Copyright © 2001 by ASME
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References

Figures

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Schematic of prototype vibration pumping device applied as left ventricular assist device (1 casing, 2 jellyfish valve, 3 diaphragm, 4 vibrating pipe, 5 coil, 6 magnet, 7 spring, and 8 bellows)
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Photograph (upper side) and sketch (lower side) of flow pattern in casing
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Mean velocity Vi at valve exit
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Schematics of vibration pumping device 1 and numerical grid for computation (1 casing, 2 jellyfish valve, 3 diaphragm, 4 vibrating pipe, 5 coil, 6 magnet, 7 spring, and 8 bellows)
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Schematics of vibration pumping device 2 and numerical grid for computation (1 casing, 2 jellyfish valve, 3 diaphragm, 4 vibrating pipe, 5 coil, 6 magnet, 7 spring, and 8 bellows)
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Schematics of vibration pumping device 3 and numerical grid for computation (1 casing, 2 jellyfish valve, 3 diaphragm, 4 vibrating pipe, 5 coil, 6 magnet, 7 spring, and 8 bellows)
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Schematics of vibration pumping device 4 and numerical grid for computation (1 casing, 2 jellyfish valve, 3 vibrating pipe, 4 coil, 5 magnet, 6 spring, and 7 bellows)
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Schematics of vibration pumping device 5 and numerical grid for computation (1 casing, 2 jellyfish valve, 3 bellows, 4 vibrating pipe, 5 coil, 6 magnet, and 7 spring)
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(a) Stream lines (ψ=−0.001, ±0.01, ±0.05, ±0.1, ±0.3, 0.6, 1.0, and 1.1), and (b) iso-vorticity lines (ω=−0.01, −0.1, and ±1.0) in vibration pumping device 1
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Relationship between free hemoglobin ΔFhb and spatiotemporal-averaged vorticity |ωm| for various casing geometries

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