Normal Waves Arising when Blood Moves Through an Artery

  • B. V. Batsak Amosov National Institute of Cardiovascular Surgery, National Academy of Medical Sciences of Ukraine
  • Yu. F. Zabashta Taras Shevchenko National University of Kyiv, Faculty of Physics
  • V. I. Kovalchuk Taras Shevchenko National University of Kyiv, Faculty of Physics
  • O. S. Svechnikova Taras Shevchenko National University of Kyiv, Faculty of Physics
  • L. A. Bulavin Taras Shevchenko National University of Kyiv, Faculty of Physics
Keywords: artery, normal waves, pulse wave

Abstract

A model is proposed of the pulse wave propagation through an artery is proposed. The artery is considered as a cylindrical shell surrounded by an elastic medium. The amplitude and shape of normal waves arising, when blood flows through the artery are determined. Two types of such waves are revealed: zero waves, whose amplitude does not change its sign over the arterial cross-section, and non-zero ones, for which such a change does take place. It is shown that the pulse wave is a wave packet formed by zero normal waves. The non-zero normal waves are found to be localized near the entrance section of the artery, by creating a transition zone whose size is about the arterial radius. The non-zero normal waves are shown to enhance the process of erythrocyte disaggregation in the transition zone.

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Published
2020-05-11
How to Cite
Batsak, B., Zabashta, Y., Kovalchuk, V., Svechnikova, O., & Bulavin, L. (2020). Normal Waves Arising when Blood Moves Through an Artery. Ukrainian Journal of Physics, 65(5), 438. https://doi.org/10.15407/ujpe65.5.438
Section
Physics of liquids and liquid systems, biophysics and medical physics

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