Numerical study of haemodynamics in abdominal aorta with renal branches using fluid – structure interaction under rest and exercise conditions

Adi Azriff, Cherian Johny, S. M. Abdul Khader, B. Raghuvir Pai, M. Zuber, K. A. Ahmed, Zanuldin Ahmad

Research output: Contribution to journalArticle

Abstract

Computational simulations studying the complex interaction of blood flow through elastic arteries has demonstrated the haemodynamics of cardiovascular diseases such as atherosclerosis. The aim of present study is to investigate the hemodynamic behavior in 3D models of an idealistic abdominal aorta with renal branches based on (Computed Tomography) CT image. A new technique is used to develop the idealistic model from the single slice. 3D abdominal aorta model with renal branches is generated using ANSYS Design modeler and numerical analysis is performed using FSI solver in ANSYS-17. The blood flow is assumed to be incompressible, homogenous and Newtonian, while artery wall is assumed to behave linearly elastic. The two-way sequentially coupled transient FSI analysis is performed using FSI solver for three pulse cycles. The investigation is focused on haemodynamic parameters such as flow velocity, Wall Shear Stress (WSS), pressure contours, arterial wall deformation and von-Mises stress are studied at the bifurcation and critical zones. The flow variables are monitored throughout pulsatile flow subjected to both resting and exercise cases which is indicated through results obtained. This preliminary study shall be useful to carry out FSI simulation in patient specific cases.

Original languageEnglish
Pages (from-to)23-27
Number of pages5
JournalInternational Journal of Recent Technology and Engineering
Volume7
Issue number4
Publication statusPublished - 01-01-2018

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Fluid structure interaction
Hemodynamics
Blood
Pulsatile flow
Transient analysis
Flow velocity
Tomography
Shear stress
Numerical analysis
Exercise
Fluid-structure interaction
Simulation

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Management of Technology and Innovation

Cite this

Azriff, Adi ; Johny, Cherian ; Abdul Khader, S. M. ; Raghuvir Pai, B. ; Zuber, M. ; Ahmed, K. A. ; Ahmad, Zanuldin. / Numerical study of haemodynamics in abdominal aorta with renal branches using fluid – structure interaction under rest and exercise conditions. In: International Journal of Recent Technology and Engineering. 2018 ; Vol. 7, No. 4. pp. 23-27.
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Numerical study of haemodynamics in abdominal aorta with renal branches using fluid – structure interaction under rest and exercise conditions. / Azriff, Adi; Johny, Cherian; Abdul Khader, S. M.; Raghuvir Pai, B.; Zuber, M.; Ahmed, K. A.; Ahmad, Zanuldin.

In: International Journal of Recent Technology and Engineering, Vol. 7, No. 4, 01.01.2018, p. 23-27.

Research output: Contribution to journalArticle

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