Influence of heat and mass transfer on MHD two-phase blood flow with radiation

Gaur

International Journal of Applied Mechanics and Engineering

2019

A mathematical model for MHD blood flow through a stenosed artery with Soret and Dufour effects in the presence of thermal radiation has been studied. A uniform magnetic field is applied perpendicular to the porous surface. The governing non-linear partial differential equations have been transformed into linear partial differential equations, which are solved numerically by applying the explicit finite difference method. The numerical results are presented graphically in the form of velocity, temperature and concentration profiles. The effects of various parameters such as the Reynolds number, Hartmann number, radiation parameter, Schmidt number and Prandtl number, Soret and Dufour parameter on the velocity, temperature and concentration have been examined with the help of graphs. The present results have an important bearing on the therapeutic procedure of hyperthermia, particularly in understanding/regulating blood flow and heat transfer in capillaries.

Section: Introductionmentioning

confidence: 99%

Radiation Effect on MHD Blood Flow Through a Tapered Porous Stenosed Artery with Thermal and Mass Diffusion

Gaur

International Journal of Applied Mechanics and Engineering

2019

“…Sharma et al (2007) analyzed thermal distribution in three-dimensional (3D) fluid flow under the effects of thermal radiation. The impact of radiation on MHD two-phase blood flow for heat transfer analysis was described by Tripathi and Sharma (2018). Hayat et al (2019) investigated the flow of a viscous MHD fluid past a stretching cylinder with gyrotactic microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of radiative solar trough collectors for MHD Jeffrey hybrid nanofluid flow with gyrotactic microorganism: entropy generation optimization

Kumar,

Sharma,

Bin-Mohsen

et al. 2024

HFF

Self Cite

Purpose A parabolic trough solar collector is an advanced concentrated solar power technology that significantly captures radiant energy. Solar power will help different sectors reach their energy needs in areas where traditional fuels are in use. This study aims to examine the sensitivity analysis for optimizing the heat transfer and entropy generation in the Jeffrey magnetohydrodynamic hybrid nanofluid flow under the influence of motile gyrotactic microorganisms with solar radiation in the parabolic trough solar collectors. The influences of viscous dissipation and Ohmic heating are also considered in this investigation. Design/methodology/approach Governing partial differential equations are derived via boundary layer assumptions and nondimensionalized with the help of suitable similarity transformations. The resulting higher-order coupled ordinary differential equations are numerically investigated using the Runga-Kutta fourth-order numerical approach with the shooting technique in the computational MATLAB tool. Findings The numerical outcomes of influential parameters are presented graphically for velocity, temperature, entropy generation, Bejan number, drag coefficient and Nusselt number. It is observed that escalating the values of melting heat parameter and the Prandl number enhances the Nusselt number, while reverse effect is observed with an enhancement in the magnetic field parameter and bioconvection Lewis number. Increasing the magnetic field and bioconvection diffusion parameter improves the entropy and Bejan number. Originality/value Nanotechnology has captured the interest of researchers due to its engrossing performance and wide range of applications in heat transfer and solar energy storage. There are numerous advantages of hybrid nanofluids over traditional heat transfer fluids. In addition, the upswing suspension of the motile gyrotactic microorganisms improves the hybrid nanofluid stability, enhancing the performance of the solar collector. The use of solar energy reduces the industry’s dependency on fossil fuels.

“…Kamangar et al [5] numerically studied the steady and transient blood flow for different geometrical shapes of stenosis (triangular, elliptical and trapezium) having 70 % (moderate), 80 % (intermediate) and 90 % (severe) stenosis. In view of a diseased artery, Tripathi and Sharma [6] used a mathematical model to study narrow arteries for both core and plasma regions separately. It was shown that the velocity profile of blood flow decreases with increasing height of the stenosis for both core and plasma regions.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modeling of LDL-C and Blood Flow through an Inclined Channel with Heat in the Presence of Magnetic Field

Kubugha

Amos

2022

Trends Sci

This investigation revealed that LDL-C and blood flow through an inclined channel with heat in the presence of magnetic field. In this study,mathematical models were formulated for LDL-C and blood flow and energy transfer as a coupled system of partial differential equations (PDEs), the PDEs were scaled using the dimensionless quantities to dimensionless partial differential equations, they are further reduced to an ordinary differential equations (ODEs) using the perturbation method involving the oscillatory term, the governing equations are solved directly using the method of undetermined coefficient. The velocity and temperature functions are obtained with some governing parameters involved, and simulation codes were developed using Mathematica to study the effect of entering parameters on the profiles, and are found to be effective in controlling the flow profiles. It is observed that the governing parameters influenced the flow profiles; also the angle of inclination also influences the flow profile. HIGHLIGHTS Heart attack occurs when blood flow decreases or blood stopped from entering the heart, thereby causing damage to the heart muscle Atherosclerosis is an inflammatory disease resulting in the pathological alteration of the intima and media of arteries such as e.g. the aorta Use mathematical models to investigate the pulsating flow of blood in an atherosclerotic artery in an inclined fashion Carrying out numerical simulation using Mathematica to investigate the impact of the model parameters on the velocity and temperature distribution of the blood. The analysis is relevant in the sense that it helps determine how best clinicians can administer treatment and care GRAPHICAL ABSTRACT