A study of nanoparticles as a drug carrier on the wall of Stenosed Arteries

The influences of nanoparticles as drug carriers on the walls of stenosed arteries are presented. In this study, three nanoparticles namely Fe3O4 , TiO2 and Cu were used. It is observed that the addition of Fe3O4 nanoparticles tends to reduce the resistance impedance of blood temperature in bell shaped stenosed arteries. The blood temperature increases slightly in the streamwise direction before the throat region. Thereafter, the blood temperature increases at a higher rate and reaches its maximum value at the stenosis throat. It is found that the temperature distribution is heavily dependent on parameters such as periodic body acceleration and Prandtl number

Controlling the blood flow in the stenosed porous artery with magnetic field

The unsteady blood flow in the stenosed porous artery subjected to a magnetic field was studied analytically. Oscillating pressure gradient and periodic body acceleration were imposed on the flow field. The effects of the magnetic field and the permeability of the stenosed artery on the blood velocity were studied. The results showed that the magnetic field affected the flow field significantly which can be beneficial for some practical problems

Unsteady blood flow with nanoparticles through stenosed arteries in the presence of periodic body acceleration

The effects of nanoparticles such as Fe304,Ti02, and Cu on blood flow inside a stenosed artery are studied. In this study, blood was modelled as non-Newtonian Bingham plastic fluid subjected to periodic body acceleration and slip velocity. The flow governing equations were solved analytically by using the perturbation method. By using the numerical approaches, the physiological parameters were analyzed, and the blood flow velocity distributions were generated graphically and discussed. From the flow results, the flow speed increases as slip velocity increases and decreases as the values of yield stress increases

Analysis of non-newtonian magnetic casson blood flow in an inclined stenosed artery using caputo-fabrizio fractional derivatives

Background and Objective: Arterial diseases would lead to several serious disorders in the cardiovascu- lar system such as atherosclerosis. These disorders are mainly caused by the presence of fatty deposits, cholesterol and lipoproteins inside blood vessel. This paper deals with the analysis of non-Newtonian magnetic blood flow in an inclined stenosed artery. Methods: The Casson fluid was used to model the blood that flows under the influences of uniformly dis- tributed magnetic field and oscillating pressure gradient. The governing fractional differential equations were expressed using the Caputo Fabrizio fractional derivative without singular kernel. Results: The analytical solutions of velocities for non-Newtonian model were then calculated by means of Laplace and finite Hankel transforms. These velocities were then presented graphically. The result shows that the velocity increases with respect to Reynolds number and Casson parameter, while decreases when Hartmann number increases. Conclusions: Casson blood was treated as the non-Newtonian fluid. The MHD blood flow was accelerated by pressure gradient. These findings are beneficial for studying atherosclerosis therapy, the diagnosis and therapeutic treatment of some medical problems

Unsteady blood flow in the stenosed artery subjected to magnetic field and injected nanoparticles

The blood flow in the stenosed artery was investigated in the current work. The blood, which was modelled as Newtonian or non-Newtonian fluid, was subjected to an oscillating pressure gradient and a periodic body acceleration. In the first problem, the magnetic field and the porosity were considered. In the second problem, the augmentation of heat transfer due to drug carriers such as nanoparticles (Fe3O4, TiO2, Cu) was modelled. In the first problem, the non-dimensional equation was solved by combining both perturbation and power series methods. However, for the second problem, only the perturbation method was used. The MATHCAD software was adopted to find the numerical figures of the analytical solutions. The presence of magnetic field tended to decelerate the blood flow in the stenosed artery due to strong resistance. However, the blood velocity increased with respect to the body acceleration, the pressure gradient and the permeability parameter. For the second problem, it was observed that the velocity increased with respect to the slip velocity and the body acceleration but decreased as the yield stress and the pressure gradient increased. The temperature of blood mixed with Fe3O4 was higher as compared to those with TiO2 and Cu nanoparticles, thus implying that Fe3O4 could be used as a diagnosis tool for drug delivery in stenosis treatment. The blood temperature increased slightly along the stream wise direction before reaching the constricted region. The temperature distributions were significantly dependent on periodic body acceleration, pressure gradient and Prandtl number

The effects of magnetic casson blood flow in an inclined multi-stenosed artery by using caputo-fabrizio fractional derivatives

Hemodynamic is the knowledge of blood circulation, which is useful in the diagnosis of coronary illness. The reason behind the malfunction of cardiovascular system is the presence of fats, cholesterol and lipoproteins at the sites of atherosclerotic lesion in the artery [1]. In recent years, due to its great importance in the human cardiovascular system, the study of blood flow through constricted arteries has received a great deal of attention [2–4]. Prasad and Radhakrishnamacharya [5] considered the steady blood flow through an inclined non-uniform tube with multiple stenoses. Agarwal and Varshney [6] studied the flow of Herschel-Bulkley fluid through an inclined tube of nonuniform cross-section with multiple stenoses. Biswas and Paul [7] observed the steady blood flow through an inclined tapered vessel, where the blood was modelled as Newtonian fluid and the slip vessel wall condition was applied. Also, their analysis includes one-dimensional Poiseuille blood flow through tapered vessels with inclined geometries. Ismail and Jamali [8] explored the dynamic response of heat transfer in the steady laminar blood flow through the stenotic bifurcated artery