Modeling of silver nanoparticle in the blood capillaries

Abstract

A numerical simulation of a silver nanoparticle under the effect of the blood flow is conducted using computational fluid dynamics. The nature of the laminar fluid; blood, is studied in the presence of the silver nanoparticle where the effects of its size is investigated in the flow. Numerical simulations are conducted on particle sizes of 10 nm, 100 nm, and 200 nm in order to permit proper comparison for two different capillaries geometries; circular and rectangular. The results showed that the flow in a circular geometry have tendency to follow in tubular pathway deviating from the radial dimensions; whereas, the flow in the rectangular geometry does not deviate from the provided dimensions and maintains a stable profile for all three nanparticles sizes. The velocity under a rectangular geometry was able to reach a developed laminar flow unlike that under a circular geometry. After studying the velocity profile, contour, and pressure contour, it appeared that the rectangular geometry is a better choice in studying the behavior of the blood flow and the provided nanoparticles under given conditions. The 10 nm size showed to have the least effect on the velocity of the blood flow following the laminar flow provided; whereas, the 200 nm particle showed a greater effect on the blood flow.