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Blood Flow Modeling in Stenosed Arteries Using CFD Solver

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Fluid Mechanics and Fluid Power, Volume 4 (FMFP 2022)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

Simulation of blood flow in arteries is an extensive topic of research to study various hemodynamic factors in CFD. This paper studies two different degrees of stenosis (less than 50 and 80% by flow area) that have been extracted from real images. The pulsatile nature of the blood flow has been considered. Changes in velocity flow patterns and wall shear stress for the two cases have been studied. Results show that the peak velocity increases drastically as the stenosis area increases to 80%. Negative velocity near the walls of the artery shows flow separation. This value also increases with the increase in stenosis area. This is seen in almost all regions of the cardiac cycle except in the accelerating flow region. With the increase in stenosis area, wall shear stress (WSS) rises drastically. Negative wall shear stress seen downstream of stenosis also indicates recirculation.

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Abbreviations

Ec:

Convective flux in z-direction

Gc:

Convective flux in r-direction

Ev:

Viscous flux in z-direction

Gv:

Viscous flux in r-direction

Ï„:

Pseudo time

HLLC-AC:

Harten Lax and van Leer with contact

β:

Artificial compressibility factor

Θ:

Matrix

R*:

Residue term

W:

Flow variables

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Symbiosis International (Deemed University), Symbiosis Institute of Technology, Pune, 412115, India

    Priyambada Praharaj & Chandrakant Sonawane

  2. High Performance Computing-Scientific and Engineering Application Centre for Development of Advanced Computing, Pune, 411008, India

    Vikas Kumar

Authors
  1. Priyambada Praharaj
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  2. Chandrakant Sonawane
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  3. Vikas Kumar
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Corresponding author

Correspondence to Priyambada Praharaj .

Editor information

Editors and Affiliations

  1. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Krishna Mohan Singh

  2. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Sushanta Dutta

  3. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, India

    Sudhakar Subudhi

  4. Department of Mechanical and Industrial Engineering, IIT Roorkee, Roorkee, Uttarakhand, India

    Nikhil Kumar Singh

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Praharaj, P., Sonawane, C., Kumar, V. (2024). Blood Flow Modeling in Stenosed Arteries Using CFD Solver. In: Singh, K.M., Dutta, S., Subudhi, S., Singh, N.K. (eds) Fluid Mechanics and Fluid Power, Volume 4. FMFP 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-7177-0_51

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  • DOI: https://doi.org/10.1007/978-981-99-7177-0_51

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-7176-3

  • Online ISBN: 978-981-99-7177-0

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