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ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110
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Study of Pressure Drop and Flow Characteristics Across Rectangular Stenotic Models
ABSTRAKT
A numerical study has been carried out to investigate disturbances of blood flow through coronary artery with two rectangular stenoses for the restrictions of 10 to 90 % with the Reynolds numbers ranging from 25 to 375. Wall pressure, average pressure, flow characteristics, and its physiological aspects have been studied in detail. The non-dimensional pressure drop is higher for higher stricture length of rectangular stenosis. Atherosclerotic plaque formation tends to start from very low flow Reynolds number of 25 and 50 with 50 % restriction. For Reynolds numbers of 100 and above, it starts at 30 % stenosed condition. No applicable magnitude of variation between wall pressure and average pressure is noted. The effect of stricture length has been found no impact on the reattachment length.
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Goswami P., Mandal D. K., Manna N. K., Chakrabarti S., Study on the effect of steady, simple pulsatile and physiological pulsatile flows through a stenosed artery, Heat and Mass Transfer, 50, 10, 2014. Crossref
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Mandal D. K., Manna N. K., Chakrabarti S., Influence of different bell-shaped stenoses on the progression of the disease, atherosclerosis, Journal of Mechanical Science and Technology, 25, 8, 2011. Crossref
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Mandal Dipak Kumar, Goswami Partha, Biswas Nirmalendu, Manna Nirmal K., Fluid Mechanics in Arterial Diseases, in Advances in Computational Approaches in Biomechanics, 2022. Crossref
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Mandal D.K., Manna N.K., Chakrabarti S., Numerical study of blood flow through different double bell‐shaped stenosed coronary artery during the progression of the disease, atherosclerosis, International Journal of Numerical Methods for Heat & Fluid Flow, 20, 6, 2010. Crossref