Numerical Study of the Effect of Magnetic Field on Blood Flow in a Stenotic Artery with Fluid-Solid Interaction

Document Type : Original Article

Authors

1 Mechanical Engineering department, K. N. T. University

2 Mechanical engineering departent, K. N. T. University of technology

3 K. N. T. University of Technology

Abstract

Cardiovascular diseases have been one of the main causes of death throughout the world in recent decades.One of the most common heart diseases is stenotic arteries, which usually appears with middle age. This disease, called atherosclerosis, causes an abnormal reduction in the inside diameter of blood vessels. In this study, the effect of a uniform magnetic field on blood flow and artery walls is investigated. The geometry of the problem is simulated in three dimensions. The governing equations, which include continuity, momentum, ohm’s law, stress-strain of linear elastic material, and fluid-solid interaction with moving mesh method, are defined, coupled, and solved with a finite element code in the Comsol software.The results indicate that the magnetic field has a significant effect on the behavior of blood flow and artery walls. For example, the Hartmann number is inversely related to the blood flow velocity and is directly related to the wall shear stress, the von Mises stress, and the artery wall displacement. It is also observed that the trend of changes with non-Newtonian viscosity model is greater than the Newtonian model.

Keywords

References

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Fluid Mechanics & Aerodynamics
Volume 9, Issue 2 - Serial Number 26
November 2021
Pages 53-63

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History

  • Receive Date: 03 February 2021
  • Revise Date: 15 April 2021
  • Accept Date: 09 May 2021
  • Publish Date: 29 November 2021

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