Joule Heating Dissipation Research Articles

MHD chemical reactive flow with velocity slip temperature and concentration jump conditions

AbstractThe main purpose of this paper is to examine the effects of velocity slip on the magneto hydrodynamics (MHD) axi‐symmetric viscous fluid flow between two disks having different stretching ratio. The flow takes place in the presence of temperature and concentration jumps. In the presence of joule heating and viscous dissipation, the investigation is carried out. The MHD flows are of utmost importance in industrial and engineering sectors because such flows can control the fluid flows with the help of Lorentz force. MHD flows are also helpful in biological fields such as wound treatments, surgeries, cancer therapy and in diagnosing diseases. The resulting system of PDE's is converted into ODE's by suitable similarity transformation. The HAM is used to solve the resulting non‐linear governing equations. The behavior of velocity, temperature and concentration profiles are observed graphically. When the stretching rate of lower disk is greater than the upper disk then the velocity rises due to increase in stretching ratio. The radial and axial components of velocity increase when the value of magnetic field increases. The temperature profile enhances for Eckert number while converse behavior is seen for stretching ratio parameters. The concentration profile increases when the value of Schmidt number is enhanced.

Viscous dissipation and Joule heating effects on hydro-thermal power law nanofluid through annular duct

This study presents a mathematical model along with numerical simulation to investigate the viscous dissipation and Joule heating effects on electrically conducting magnetohydrodynamics (MHD) forced convection non-Newtonian power law nanofluid flow through annular sector duct. Hydro-thermal power law nanofluid flow through annular sector duct is not investigated in the presence of Joule heating and viscous dissipation effects. The consideration of Joule heating and viscous dissipation effects makes it very much novel in its own right. The main objective of this work is to explore the Joule heating and viscous dissipation effects on hydro-thermal power law nanofluid. Both Copper, Cu/Titanium oxide, TiO2 nanoparticles with base fluid water have been taken as a power law model. Numerically simulation is carried out for viscous, incompressible and steady laminar fully developed fluid flow with constant properties, by using the finite volume method (FVM) and strongly implicit procedure (SIP). It has been observed that viscous dissipation effect on temperature profiles is enhanced in the absence of magnetic field/at lower value of Ha, however, when nanoparticles’ concentration is increased, the effect of magnetic field slightly decreases. Furthermore, by adding Cu nanoparticles from 0% to 5%, we observe the increment in average Nusselt number, Nu up to 16.01% and 16.07% in pseudo-plastic and dilatant fluids, respectively, at [Formula: see text].

Heat transfer and hydromagnetic electroosmotic Von Kármán swirling flow from a rotating porous disc to a permeable medium with viscous heating and Joule dissipation

AbstractMagnetohydrodynamic flow and heat transfer in an ionic viscous fluid in a porous medium induced by a stretching spinning disc and modulated by electroosmosis under an axial magnetic field and radial electrical field is presented in this study. The effects of convective wall boundary conditions, Joule heating and viscous dissipation are incorporated. The governing partial differential conservation equations are transformed into a system of self‐similar coupled, nonlinear ordinary differential equations with associated boundary conditions. The Matlab bvp4c solver featuring a shooting technique and the fourth‐order Runge–Kutta–Fehlberg method are used to numerically solve the governing dimensionless boundary value problem. Multivariate analysis is also performed to examine the thermal characteristics. An increase in rotation parameter induces a reduction in the radial velocity, whereas it elevates the tangential velocity. Greater electrical field parameter strongly damps the radial velocity whereas it slightly decreases the tangential velocity. Increasing magnetic parameter also damps both the radial and tangential velocities. An increment in electroosmotic parameter substantially decelerates the radial flow but has a weak effect on the tangential velocity field. Increasing permeability parameter (inversely proportional to permeability) markedly damps both radial and tangential velocities. The pressure gradient is initially enhanced near the disk surface but reduced further from the disk surface with increasing magnetic parameter and electrical field parameter, whereas the opposite effect is produced with increasing Joule dissipation. Increasing magnetic and rotational parameters generate a strong heating effect and boost temperature and thermal boundary layer thickness. Nusselt number is boosted with increasing Brinkman number (viscous heating effect) and Reynolds number. The simulations are relevant to electromagnetic coating flows, bioreactors and electrochemical sensing technologies in medicine.

Ladderphane copolymers for high-temperature capacitive energy storage.

For capacitive energy storage at elevated temperatures1-4, dielectric polymers are required to integrate low electrical conduction with high thermal conductivity. The coexistence of these seemingly contradictory properties remains a persistent challenge for existing polymers. We describe herea class of ladderphane copolymers exhibiting more than one order of magnitude lower electrical conductivity than the existing polymers at high electric fields and elevated temperatures. Consequently, the ladderphane copolymer possesses a discharged energy density of 5.34 J cm-3 with a charge-discharge efficiency of 90% at 200 °C, outperforming the existing dielectric polymers and composites. The ladderphane copolymers self-assemble into highly ordered arrays by π-π stacking interactions5,6, thus giving rise to an intrinsic through-plane thermal conductivity of 1.96 ± 0.06 W m-1 K-1. The high thermal conductivity of the copolymer film permits efficient Joule heat dissipation and, accordingly, excellent cyclic stability at elevated temperatures and high electric fields. The demonstration of the breakdown self-healing ability of the copolymer further suggests the promise of the ladderphane structures for high-energy-density polymer capacitors operating under extreme conditions.

Numerical treatment of hybrid water based nanofluid flow with effect of dissipation and Joule heating over a shrinking surface: Stability analysis

In the current work, the steady flow of magnetohydrodynamic of Cu-Al2O3/water hybrid nanofluid was investigated along with Joule heating and viscous dissipation effect across a porous shrinking sheet. Using an appropriate similarity transformation, the governing partial differential equations (PDEs) are transformed into ordinary differential equations (ODEs). The system of ODEs is solved using the bvp4c function in MATLAB. The present findings are numerically and visually compared to the available literature, and excellent agreements are discovered. The impacts of several new physical governing factors on velocity and temperature profiles, while the variation of heat transfer and skin friction, are visually shown and explicated hypothetically. In addition, the findings demonstrate the presence of duality within a limited range of suction parameters. Increasing the solid volume fraction ϕCu increases the values of f′′(0) for an initial solution and reduces them for an unstable solution. The investigation of the temporal stability of the solutions concludes that the first solution is stable only. The values of smallest eigenvalues values (γ>0) are positive for first solution indicated the stability of solution while the values of smallest eigenvalues values (γ<0) are negative for second solution indicates the instability of solution. The quantitative outcomes are in Table 4. The concentration of Al2O3 and Cu is almost 20% (0.01≤ϕAl2O3≤0.2 and 0.01≤ϕCu≤0.2).

Inter-hemispheric asymmetries in high-latitude electrodynamic forcing and the thermosphere during the October 8–9, 2012, geomagnetic storm: An integrated data–Model investigation

Inter-hemispheric asymmetry (IHA) in Earth’s ionosphere–thermosphere (IT) system can be associated with high-latitude forcing that intensifies during storm time, e.g., ion convection, auroral electron precipitation, and energy deposition, but a comprehensive understanding of the pathways that generate IHA in the IT is lacking. Numerical simulations can help address this issue, but accurate specification of high-latitude forcing is needed. In this study, we utilize the Active Magnetosphere and Planetary Electrodynamics Response Experiment-revised fieldaligned currents (FACs) to specify the high-latitude electric potential in the Global Ionosphere and Thermosphere Model (GITM) during the October 8–9, 2012, storm. Our result illustrates the advantages of the FAC-driven technique in capturing high-latitude ion drift, ion convection equatorial boundary, and the storm-time neutral density response observed by satellite. First, it is found that the cross-polar-cap potential, hemispheric power, and ion convection distribution can be highly asymmetric between two hemispheres with a clear By dependence in the convection equatorial boundary. Comparison with simulation based on mirror precipitation suggests that the convection distribution is more sensitive to FAC, while its intensity also depends on the ionospheric conductance-related precipitation. Second, the IHA in the neutral density response closely follows the IHA in the total Joule heating dissipation with a time delay. Stronger Joule heating deposited associated with greater high-latitude electric potential in the southern hemisphere during the focus period generates more neutral density as well, which provides some evidences that the high-latitude forcing could become the dominant factor to IHAs in the thermosphere when near the equinox. Our study improves the understanding of storm-time IHA in high-latitude forcing and the IT system.

Entropy optimized flow of hybrid nanofluid with partial slip boundary effects and induced magnetic field

There are various implementations of common fluids in industrial and chemical processes. With the cooperation of the nanoparticles, the lower thermal properties of such fluids can be augmented. By using a new kind of nanofluid namely hybrid nanofluid, the heat transfer rate of such fluids can be boosted more quickly. The main intention of this research is on entropy analysis in the stagnant point flow of a hybrid nanofluid. The mixed convection nonlinear thermal radiative flow on a stretchable vertical sheet is examined under the influences of the induced magnetic field and chemical reactions. The impacts of Joule heating, partial slips and viscous dissipation are also involved. After the execution of the appropriate similarity transformations, the constituting equations of the flow problem emerge as the nonlinear dimensionless setup of ordinary differential equations. An amplification is examined in the velocity field, entropy generation, and induced magnetic field relative to the mixed convection parameter. With the improved Brinkman number, an augmentation is developed in the entropy of the system. Moreover, both the heat transfer rate and the surface drag force exhibit an accelerating behavior relative to the mixed convection parameter.

Thermal transport in nanofluid across a radiated permeable sheet with irreversible effects based on the shape of the particles

Purpose The purpose of this study is to examine the flow and heat transfer performance of titanium oxide/water and copper/water nanofluids with varying nanoparticle morphologies by considering magnetic, Joule heating and viscous dissipation effects. Furthermore, it studies the irreversibility caused by the flow of a hydromagnetic nanofluid past a radiated stretching sheet by considering different shapes of TiO2 and Cu nanoparticles with water as the base fluid. Design/methodology/approach In this study, the authors investigated entropy production in an unsteady two-dimensional magneto-hydrodynamic nanofluid regime using water as the base fluid and five unique TiO2 and Cu nanoparticle morphologies. Using appropriate similarity transformations, the controlling nonlinear system of partial differential equations is transformed into a system of ordinary differential equations. The shooting technique with Runge–Kutta method was then used to solve these equations quantitatively. The findings of this study are depicted graphically, and the skin friction corresponding to various nanoparticle geometries and physical parameter variations is tabulated. Findings To assess the reliability of the current findings, a tabular representation of the data was compared to that of previously published studies. It is noted that a reduction in thermal energy was detected as a result of the higher levels of Prandtl number (Pr). It is further analysed that the highest heat energy generation of TiO2 nanoparticles was larger than that of Cu nanoparticles. The most important finding was that the sphere-shaped Cu/H2O nanofluid had the lowest velocity and greatest temperature. Also, Cu nanoparticles in the shape of platelets generate the most entropy, while TiO2 nanoparticles in the shape of spheres generate the least. Originality/value To the best of the knowledge of the authors, the attempt to investigate the previously unexplored shape effects of TiO2 and Cu nanoparticles on the heat transfer enhancement and inherent irreversibility caused by hydromagnetic nanofluid flow past a radiated stretching sheet with magnetic, Joule heating and viscous dissipation effects. This study fills this gap in the existing literature and encourages scientists, engineers and businesses to do more research in this area. This model can be used to improve heat transfer in systems that use renewable energy, thermal management in industry and the processing of materials.

Intelligence computing for the dynamic of an entropy-optimized hybrid nanofluid system under the impacts of radiation, Joule heating, and energy dissipation

In this research paper, the main focus is to inspect Entropy generation of MHD Hybrid nanofluid (MHD-HNF) in a rotating system by considering the AI-based method of Levenberg Marquardt with Back-propagated Neural Network (LM-BPNN). The type of flow is magnetohydrodynamic so all the factors which directly affect the flow like radiation, Ohmic/Joule heating and dissipation in energy expression are discussed by the variation of dimensionless parameters. The system of PDEs presenting the entropy optimized hybrid nanofluid in the rotating system is converted into ODEs using the capability of similarity transformation then the simplified version of fluid flow governing system is further solved by using Adam numerical solver for the computation of the reference dataset with the variation of injection/suction parameter, Reynold Number, Hartmann number, rotation parameter, Brinkman number and heat generation. The validation and correctness of the considered model MHD-HNF are examined by training, testing and validation process of LM-BPNN. Regression analysis, histogram for error and mean square error (MSE) results validate the performance analysis of designed LM-BPNN solver. The assessment of LM-BPNN for velocity and temperature with absolute error analysis plotted graphically and numerically as well as sway of influential parameter on entropy generation and Bejan number analysis are also discussed.

Numerical simulation of MHD two‐dimensional flow incorporated with joule heating and nonlinear thermal radiation

AbstractThe current investigation presents a numerical simulation of boundary layer flow with heat transfer. The study primarily emphasizes heat generation due to the influence of nonlinear thermal radiation. Moreover, the simultaneous effects of Joule heating and viscous dissipation have been incorporated for the thermal enhancement of the magnetohydrodynamics (MHD) on the convective boundary layer flow over a flat plate. Dimensional analysis is brought into use to determine the hydro and thermal boundary layer thickness for the two‐dimensional flow. Subsequently, the application of the suitable similarity transformation yields a nonlinear coupled flow problem with is solved numerically with the help of the Runge–Kutta Fehlberg (RKF) method incorporated with the Shooting technique. Moreover, this theoretical study highlights the immense mechanical and aeronautical applications of thermal radiation. In view of computational findings and simulating results, linear and nonlinear thermal radiation effects can also be investigated on fluids passing through a cylinder and channels. Finally, computational data tabulated against some pertinent parameters and parametric study reveal that non‐linear thermal radiation is more effective for highly viscous fluids.

Sensitivity analysis of nonlinear convective heat transport of a hybrid nanoliquid sandwiched by micropolar liquid using RSM

Petroleum and polymer industries utilize a multilayer flow model for efficient heat transfer. In such applications, the linear Boussinesq approximation is not recommended as the devices used in such experiments would work at moderate or extremely high temperatures. Therefore, the flow and heat transfer in a multilayer vertical channel with a magnetic field and the nonlinear (quadratic) Boussinesq approximation are investigated, with the central region filled with a hybrid nanoliquid and the outer regions filled with an oil-based micropolar liquid. The effects of Joule heating and viscous dissipation are taken into account. The effective viscosity and thermal conductivity are modeled using the experimental data based Esfe model. The modeled equations are coupled and nonlinear, they are solved using the Differential Transform Method (DTM). Results are analyzed for various values of the material parameter, quadratic convection parameter, Brinkman number, mixed convection parameter, Hartmann number, nanoparticle volume fraction (NVF) on Nusselt number, skin friction, velocity, microrotation velocity and temperature distributions. Additionally, multi-objective optimization of Nusselt number and friction factor is performed for three different levels of the quadratic convection parameter , material parameter and the NVF using the Response Surface Methodology (RSM). The material parameter diminishes the velocity whereas enhances the microrotation velocity. Also, the quadratic convection parameter increases the flow field. Sensitivity computations reveal that the Nusselt number is more sensitive to material parameter and NVF whereas the skin friction coefficient is more sensitive to quadratic convection parameter.

Heat transfer characteristics of magnetohydrodynamic two fluid oscillatory flow in an inclined channel with saturated porous medium

This investigation aims to examine the hydromagnetic flow of two liquid flows of fully developed incompressible Newtonian fluid in an inclined channel through the porous medium accounting for radiative heat flux, Joule heating, and viscous dissipation. The walls of the channel are maintained at different temperatures. A double perturbation method is employed to derive analytical results for velocity and temperature. Graphical results are presented for various arising parameters such as Hartmann number, Grashoff number, ratio of viscosity parameter, thermal conductivity ratio, and porous parameter. Further, the results for mass flux are presented in a tabular form and discussed. Reduction in the velocity and temperature distribution is observed by enhancing Darcy dissipation and frequency parameter. As the angle of inclination increases, there is a rise in flow and heat distribution. With the strength of the magnetic field and the rise in the Reynolds number, the mass flux decreases. A comparative study is carried out with the previously published work and the results are found to be in good agreement.

Effects of electropulsing treatment on the microstructural evolution of hot-rolled TiBw/TA15 composite billet with a network architecture

The use of resistance heating patterns is one of the underlying opportunities for the hot processing of hard-working materials. Here, the effect of electropulsing treatment (EPT) on the microstructure of a hot-rolled TiBw/TA15 composite billet with a network architecture was investigated. Experimental results showed that the stable temperature platform presented a competition between Joule heat and heat dissipation, including heat conduction, convection, and radiation, and the temperature distribution was non-uniform. The ultimate temperatures of the EPT samples increased gradually as the electropulsing increased. Then, the traditional heat treatment sample was compared with the EPT samples via electron backscatter diffraction, scanning electron microscopy, and X-ray diffraction. Results of analyses indicate that the athermal effect independent from electropulsing can promote the growth of grains, but it also decreases the dislocation density and increases the recrystallization fraction. Therefore, athermal effects can exist authentically in contrast to the thermal effects, and specific thermal effects can hardly achieve the results obtained in this study.

Convective heat transport features of Darcy Casson fluid flow in a vertical channel: a Lie group approach

This work is devoted for the flow analysis and to explore the characteristics of thermal energy transport in non-Newtonian Casson fluid flow in a channel. The flow between the two walls is controlled by constantly slipping between them (fixed on a cold plate or a suction wall). The flow of Casson fluid is explored under the effects of MHD and mixed convection. The impacts of Joule heating and viscous dissipation are incorporated to investigate the thermal transport in the flow. Beside this, the heat transport behavior is properly examined by taking heat source/sink effects into account. The partial differential equations (PDEs) scheme is resolved with the Lie group method. After applying the Lie group theory, we have a system of ordinary differential equations (ODEs) numerically processed. The effects of physical constraints are analyzed with ND-Solve technique in MATHEMATICA and illustrated graphically with reasonable physical arguments. It is detected that because of escalation in the Eckert number the thermal transport in the flow significantly raised. While the flow velocity retarded in case of higher Hartmann number.

Electro-magnetohydrodynamics hybrid nanofluid flow with gold and magnesium oxide nanoparticles through vertical parallel plates

The hybrid nanofluid flow under suspension of Gold and Magnesium oxide nanoparticles (Au/MgO-NPs) propagating between vertical parallel plates is investigated. Sodium alginate third-grade non-Newtonian fluid is used as the base fluid. The effect of electro-magnetohydrodynamics is also taken into account. The energy equation also includes the effect of Joule heating and viscous dissipation. Due to the nonlinear nature of the formulated differential equations, perturbation strategy is utilized to acquire the analytical solutions. Discussion and plotting are presented with respect to most significant parameters. It is analyzed that the rate of heat transfer is dramatically increased, and this is owing to an increase in the thermal conductivity of the fluid due to hybrid nanofluid. With increment in buoyancy convection parameter and electric field parameter, the flow is accelerated. It is also noted that the temperature is boosted with increasing nanoparticle volume fraction of both magnesium oxide and gold nanoparticles. A comparison with previously studied results is also included. The applications of the work include novel thermal duct processing technologies in biomedical, nuclear and process engineering.

Study of the Magnetized Hybrid Nanofluid Flow through a Flat Elastic Surface with Applications in Solar Energy.

The main theme of the present study is to analyze numerically the effects of the magnetic field on the hybrid nanofluid flow over a flat elastic surface. The effects of the thermal and velocity slips are also analyzed in view of the hybrid nanofluid flow. It is considered a combination of titanium oxide (TiO2) and copper oxide (CuO) nanoparticles that are suspended in the incompressible and electrically conducting fluid (water). The behavior of the Brownian motion of the nanoparticles and the thermophoretic forces are contemplated in the physical and mathematical formulations. Moreover, the impact of the Joule heating and viscous dissipation are also discussed using the energy equation. The mathematical modeling is simulated with the help of similarity variables. The resulting equations are solved using the Keller-Box method with a combination of finite difference schemes (FDSs). Hybrid nanofluids provide significant advantages over the usual heat transfer fluids. Therefore, the use of nanofluids is beneficial to improve the thermophysical properties of the working fluid. All of the results are discussed for the various physical parameters involved in governing the flow. From the graphical results, it is found that the hybrid nanoparticles improve the concentration, temperature, and velocity profiles, as well as the thickness of the relevant boundary layer. The conjunction of a magnetic field and the velocity slip, strongly opposes the fluid motion. The boundary layer thickness and concentration profile are significantly reduced with the higher levels of the Schmidt number.

Enhanced thermal effectiveness for electrokinetically driven peristaltic flow of motile gyrotactic microorganisms in a thermally radiative Powell Eyring nanofluid flow with mass transfer

Entropy generation is a novel perspective in many thermodynamic processes and presents dynamic applications for optimizing heat transfer. In addition, the presence of microorganisms increases the stability of the liquid, which plays a key role in biotechnology, bio microsystems and bio nano cooling systems. In connection with such thermal applications, present exploration is dedicated to the analysis of thermodynamic and mass transfer of a thermally radiative Powell-Eyring magneto nanofluid with gyrotactic microorganisms, which is facilitated through two pumping mechanisms, i.e., electroosmotic pumping (electrokinetic forces) and peristaltic pumping. It is assumed that the viscosity of a liquid depends on temperature and concentration. The study considers the impacts of variable thermal conductivity, thermophoresis, porous medium, electric field, bioconvection, thermal radiation, Brownian motion, magnetic field, Joule heating and viscous dissipation. The Helmholtz-Smoluchowski model is used to describe the electroosmosis processes. The mathematical model includes highly non-linear PDE system, which turns into an ODE and then solved numerically under lubrication approximation. The main result shows that the rate of irreversibility can be minimized by increasing the viscosity parameter. Electroosmotic phenomenon upsurges the rate of heat transport. A reverse trend holds for temperature by increasing the values of radiation parameter and Darcy number. The Brownian motion parameter has a progressive effect on the concentration profile. Further, Peclet number lowers the mobile microorganism’s density.

Flow and sensitivity analysis of viscoelastic material containing nanoparticles over a stretching sheet with Ohmic and viscous dissipation

The effects of Joule heating and viscous dissipation in the MHD flow of a viscoelastic (second-grade) fluid past a stretching sheet in the presence of metallic nanoparticles are studied. Copper nanoparticles are suspended in second-grade fluid with kerosene, water and polyvinly alcohol (PVA) that are supposed to be the base fluids. The mathematical equations that oversee the flow and heat transfer fields have been developed in the form of partial differential equations that are subsequently converted into a system of non-linear ordinary differential equations using the appropriate similarity transformation. The obtained equations are numerically solved and the impacts of different types of base fluids, solid volume fraction, magnetic number and Eckert number on the flow, temperature field, skin friction and Nusselt number are graphically analyzed. A sensitivity analysis is also utilized to identify the impact of involved parameters on skin friction and local Nusselt number. To predict the uncertainty caused by the involved parameters on skin friction and local Nusselt number, the Response Surface Methodology (RSM) is used. It is found that the volume fraction of nanoparticles does not cause uncertainty on skin friction, while the viscoelastic and magnetic number shows positive sensitivity at various levels. Also, Eckert number causes uncertainty on Nusselt number for lower values of the magnetic parameter.

Thermophysical features of Ellis hybrid nanofluid flow with surface-catalyzed reaction and irreversibility analysis subjected to porous cylindrical surface

This study explores the flow irreversibility of the Ellis hybrid nanofluid (containing CoFe2O4−TiO2 nanoparticles) with homogeneous and heterogeneous reactions to a horizontal porous stretching cylinder. The energy transportation aspects are investigated in terms of the influence of joule heating and viscous dissipation. The slip and convective boundary conditions are levied on the cylindrical surface, and the mathematical flow model is transferred to a system of nonlinear ordinary differential equations using suitable transformations. The highly nonlinear systems of equations are numerically solved using the bvp4c approach in MATLAB. The graphical outcomes are obtained and discussed; it is worth noting that incremental estimations of the curvature parameter show opposite behaviors on the Ellis fluid velocity and entropy generation, i.e., the entropy generation profile increases while fluid velocity decreases. The boundary layer thinning shows resistance to impact by elasticity and magnetic field. Further, as the porosity of the liquid phase increases, the momentum of the boundary layer decreases.

Gyrotactic bioconvection stratified flow of magnetized micropolar nanoliquid configured by stretchable radiating surface with Joule heating and viscous dissipation

Nanotechnology attracts a significant consideration owing to its enormous utilizations in cancer treatment, medicine, nano-metric pregnant, nano-tubes metric, nano-robot, bio-nano-metric devices, aircraft industry, water desalination and rubber metal. Keeping such astonishing utilizations in view, the prime idea of this analysis is to scrutinize the effectiveness of radiation aspect in magnetized micropolar nanoliquid configured by impermeable stratified surface. Micro-organisms concept is adopted to stable the adjourned nano-particles via bioconvection impact persuaded by simultaneous consideration of magnetic field and buoyancy forces. In addition, the aspects of chemical reaction, Joule heating, Brownian motion, viscous dissipation and thermophoresis characteristics are analyzed. The modeled non-linear problems are simplified through boundary-layer concept. Non-linear problems are tackled analytically through homotopy scheme. The pictorial representations illustrating features of distinct emerging variables on dimensionless quantities are described comprehensively. It is investigated that stratified (thermal, solutal and motile density) variables yield lower distributions of thermal, solutal and motile micro-organisms density respectively.