Conclusions
1. Calculation of the stream surfaces during flow past the artificial heart valve with a lenticular shutoff permits finding the distribution of pressures during flow past the valve and determination of the region of increased shear stresses in the flow.
2. An especially marked increase of the velocity of the fluid and decrease of pressure are observed near the edge of the shutoff. Here we should expect maximum shear stresses, which during operation of the valve in the heart can be the cause of mechanical hemolysis of erythrocytes.
3. The region of separation behind the edge of the lens, filled with intense eddies, leads to increased hydrodynamic resistance of the valve installed in the heart, and is also a source of thrombosis.
Similar content being viewed by others
Literature cited
S. K. Godunov and V. S. Ryaben'kii, Difference Schemes [in Russian], 2nd edn., Moscow (1977).
V. F. D'yachenko, Basic Concepts of Computational Mathematics [in Russian], Moscow (1972).
V. N. Zubtsovskii, O. N. Bushmarin, P. I. Orlovskii, et al., Bionika, No. 10, 103–109 (1976).
Additional information
I. P. Pavlov First Leningrad Medical Institute. M. I. Kalinin Leningrad Polytechnic Institute. Translated from Meditsinskaya Tekhnika, No. 1, pp. 9–11, January–February, 1984.
Rights and permissions
About this article
Cite this article
Uglov, F.G., Orlovskii, P.I., Mursalova, F.A. et al. Investigation of flow past an artificial heart valve with a lenticular shutoff. Biomed Eng 18, 1–3 (1984). https://doi.org/10.1007/BF00555817
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00555817