MHD peristaltic flow of nanofluid in a vertical channel with multiple slip features: an application to chyme movement

Bioconvective Peristaltic Transport of a Nano Eyring-Powell Fluid in a Vertical Asymmetric Channel with Gyrotactic Microorganism

Peristaltic nanofluid’s flow due to the enhanced thermal performances of nanoparticles and their importance in many sectors play a vital role in medicine, cosmetics, manufacturing, and engineering processes. In this regard, the current theoretical work examines the swimming behavior of migratory gyrotactic microorganisms in a non- Newtonian blood-based nanofluid that is subjected to a magnetic field. The addition of motile microorganisms improves heat and mass transmission by stabilizing the nanoparticle suspension created by the combined actions of buoyancy force and magnetic field. This fluid pattern may display both Newtonian and non-Newtonian fluid properties. Continuity, temperature, motile microbe, momentum, and concentration equations are used in the mathematical formulation. The series solutions are found using the perturbation technique, and the leading parameters are described using graphs. Further, the impact of various physical constraints on different physiological quantities is addressed and illustrated through graphs and is pondered in detail. Bioconvection reduces the density of gyrotactic bacteria, according to the findings. Such findings are beneficial to biomedical sciences and engineering. Microorganisms are helpful in the breakdown of organic matter, the production of oxygen, and the maintenance of human health.

Effect of Thermal Radiation and Double-Diffusion Convective Peristaltic Flow of a Magneto-Jeffrey Nanofluid through a Flexible Channel

The noteworthiness of double-diffusive convection with magneto-Jeffrey nanofluid on a peristaltic motion under the effect of MHD and porous medium through a flexible channel with the permeable wall has been theoretically examined. A non-linearized Rosseland approximation is utilized to show the thermal radiation effect. The governing equations are converted to standard non-linear partial differential equations by using suitable non-dimensional parameters. Solutions of emerging equations are obtained by using the multi-step differential transformation method (Ms-DTM). The differential transformation method (DTM) can be applied directly to nonlinear differential equations without requiring linearization and discretization; therefore, it is not affected by errors associated with discretization. The role of influential factors on concentration, temperature, volume fraction, and velocity are determined using graphs. A significant outcome of the present article is that the presence of double-diffusive convection can change the nature of convection in the system. The present results have a wide biological applicability, including for biomicrofluidic devices that regulate the fluid flow through a flexible endoscope and other medical pumping systems.

Examination of Chemical Reaction on Three Dimensional Mixed Convective Magnetohydrodynamic Jeffrey Nanofluid Over a Stretching Sheet

This article aims to explore the mixed flow of MHD transmission of the three-dimensional Jeffery nanoliquid via a bidirectional stretching sheet. The impact of the chemical reaction rate and the absorption/heat induction on the flow field is assessed. A velocity slip with convective boundary conditions and zero mass concentration conditions is considered. Dimensional quintiles are reassembled into dimensionless equations using the appropriate modification of the equations. The OHAM process was adopted to resolve non-linear equations. The behavior of the parameters involved in the velocity, temperature, and filtration of nanoparticle species is interpreted in detail. It is noteworthy that Deborah’s number augments the velocity profiles, and the recurring trend is reflected in the temperature and nanoparticle filtering profiles. The combined outcomes are compared through existing literature to ensure the precision of different case solutions.

Mathematical modeling and simulation of electromagnetohydrodynamic bio-nanomaterial flow through physiological vessels

Gold-based metal nanoparticles serve a key role in diagnosing and treating important illnesses such as cancer and infectious diseases. In consideration of this, the current work develops a mathematical model for viscoelastic nanofluid flow in the peristaltic microchannel. Nanofluid is considered as blood-based fluid suspended with gold nanoparticles. In the investigated geometry, various parametric effects such as Joule heating, magnetohydrodynamics, electroosmosis, and thermal radiation have been imposed. The governing equations of the model are analytically solved by using the lubrication theory where the wavelength of the channel is considered large and viscous force is considered more dominant as compared to the inertia force relating the applications in biological transport phenomena. The graphical findings for relevant parameters of interest are given. In the current analysis, the ranges of the parameters have been considered as: 0<κ<6,0<λ1<0.6,2<M<8,0<ζ1<3,0<ζ2<3,0.1<ϕ1<0.4,0<Br<3,0<β<3,0<Rn<0.3and0<ϕ<π/2.The current results reveal that, A stronger magnetic field leads the enhancement in nanoparticle temperature and shear stress, and it reduces the velocity and trapping bolus. The nanoparticle temperature rises with the increasing parameters such as Brinkman number and Joule heating parameter.