Impact of gold and silver nanoparticles injected in blood with viscous dissipation

Haris Alam Zuberi, Madan Lal, Shivangi Verma, Ali J. Chamkha and Nurul Amira Zainal

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 8, 1373-1397

Abstract: A nano-blood model is developed to study the flow of gold- and silver-infused blood through a porous, stenotic artery under Newtonian assumptions. Wall curvature, convective heating, wall motion, and viscous dissipation are considered. Darcy’s model simulates porous resistance, and the Tiwari-Das model captures nanoparticle effects. Governing equations are reduced via similarity transformations and solved using MATLAB’s bvp4c solver. Validation against existing studies is provided. Results show gold-blood nanofluid achieves higher velocities than silver-blood. Increasing the Biot number enhances cooling at the arterial wall. Detailed graphs and 3D contour plots illustrate the effects on temperature, velocity, skin friction, and Nusselt number.

Date: 2025
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DOI: 10.1080/10255842.2025.2495893

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