The influence of geometrical shapes of stenosis on the blood flow in stenosed artery

Sarfaraz Kamangar, Irfan Anjum Badruddin, N. Ameer Ahamad, Kalimuthu Govindaraju, N. Nik-Ghazali, N. J. Salman Ahmed, A. Badarudin, T. M. Yunus Khan

Research output: Contribution to journalArticle


The present work was carried out to investigate the blood flow behavior and the severity of blockage caused in the arterial passage due to the different geometries such as elliptical, trapezium and triangular shapes of stenosis. The study was conducted with respect to various sizes of stenosis in terms of 70%, 80% and 90% area blockage of the arterial blood flow. The study was carried out numerically with the help of advance computational fluid dynamic software. It was found that the shape of the stenosis plays an important role in overall pressure drop across the blockage region of artery. The highest level of pressure drop was observed for trapezoidal shape of stenosis followed by elliptical and then by triangular shaped stenosis. The wall shear stress across the stenosis is great for trapezoidal shape followed by triangular and elliptical stenosis for same blockage area in the artery.

Original languageEnglish
Pages (from-to)1923-1933
Number of pages11
JournalSains Malaysiana
Issue number10
Publication statusPublished - Oct 1 2017



  • CFD
  • Coronary artery
  • Non-Newtonian flow
  • Stenosis

ASJC Scopus subject areas

  • General

Cite this

Kamangar, S., Badruddin, I. A., Ahamad, N. A., Govindaraju, K., Nik-Ghazali, N., Salman Ahmed, N. J., ... Yunus Khan, T. M. (2017). The influence of geometrical shapes of stenosis on the blood flow in stenosed artery. Sains Malaysiana, 46(10), 1923-1933.