Transport of heat in combustion engines, burners and consumption of energy via nuclear explosions is remarkably effected by magnetize nanofluid and radiation. Present attempt is relevant to the current Engineering applications; as design of heat exchangers, systems of renewable energy, and Nanotechnology. Therefore, main concern of the study is explored the radiative flux in Micropolar nanofluid flow under the Lorentz force and gravity modulation. The impacts of cross diffusion is also included in flow field. The mathematical model governing the flow are transformed into ODEs via similarity variables. The Keller box approach is utilized for numerical outcomes. A comprehensive analysis of the physical parameters is carried out, and numerical outcomes are displayed in graphical and tabular form. Obtained outcomes are compared with results that have already been published and found a good match. It has been found that temperature profile and concentration profile have a direct relation against Soret and Dufour respectively. Temperature profile and concentration profile has a direct relation against Dufour and Soret effects. Thermal field grows by enhancing radiation, Brownian motion and thermophoresis parameter. Furthermore, the skin friction.increases as the inclination factor grows up, but Nusselt and Sherwood numbers decline.

Nanofluid holds features to improve the thermal efficiency of various technological fluids. These materials have a broad range of industrial and engineering utilizations including energy production, cooling of engines, thermal exchanges, thermal structures, extrusion procedures hybrid power plants, etc. Application in the stated sectors proposed and motivated us to use nanofluids with improved characteristics, especially thermal features. Here magnetized nanofluid flow via swirling and stretchable cylinder embedded in porous space is investigated. Entropy minimization in nanofluid with Lorentz force is explored. Energy expression is subjected to Joule heating, and energy dissipation, and radiation are included for more needed and realistic applications. Endothermic/exothermic reaction with activation energy is further considered. The governing PDEs are transformed employing transformations and then treated using a numerical method. The consequences of various parameters on different aspects are displayed via tables and graphical visualization. Outcomes declares that temperature of nanofluid is higher for exothermic parameter. Furthermore, entropy enhances with increase in magnetic variable.

The Jeffery-Hamel flow through convergent/divergent channel is examined in this article. It is assumed that the fluid is viscous and incompressible and flow across the non-parallel walls. Viscous fluid is further taken as an electrically conducting. Impact of Lorentz force is consider to thoroughly examine the fluid movement. Energy dissipation and solar radiation features are addressed for comprehensive analysis of thermal field. Furthermore, shrinking/stretching channels are considered for more practical application. The governing system of partial differential equations can be transformed into ordinary differential equations (ODEs) using suitable transformations. The novel IRPSM, which is sami-numerical method, is utilized to work out on the solutions of obtained system of ODEs. This method has capability to accurately predict and successfully solve such non-linear realistic problem. Validation of current method is made with other techniques and shows a reasonable correspondence. Velocity and temperature are graphically visualized for different relevant parameters. Furthermore, the local skin friction coefficient and the rate of heat transfer are examined for numerous parameters. It is observed that increasing thermal radiation parameter leads to a substantial increase in the temperature profile. Additionally, the heat transfer rate is 15 % more in diverging channel when compared with converging channel.

Non-Newtonian fluids are fascinating materials have viscosities that vary according to the applied stress or shear rate. They are widely applicable in many different fields like biological systems, medical application, textile as well as in several industrial processes and common items. Motivated be the aforementioned real applications of non-Newtonian fluids, the present study aims to model mathematically Jeffery fluid flow in diverging/converging configuration. Lorentz force and slip impacts on Jeffery fluid flow through non-parallel walls is considered. The Darcy's law for non-Newtonian fluid is also computed which shows the novel aspect of current work. The modeled nonlinear PDEs have been reduced to a comparatively simpler ODEs by using an appropriate transformations. The resulting problem is then resolved by using ND Solve scheme. Results are compared with existing data for code and model justification. Simulated outcomes are visualized via graphs and table. It is noted that skin friction decays for enhanced strength of magnetic field. Furthermore, JHF velocity enhances due to higher Lorentz force effect. In nuclear reactors that employ plate-type nuclear energies, high heat-flux condensed heat exchangers, high-performance micro-electronic cooling systems, jets, rocket nozzels, and jet propulsion inlets, the flow within converging and diverging channels is practically implemented.

The concept of thermal transfer has fundamental implications in many areas, from the most basic physiological processes to the most complex technological systems. Kerosene oil, often known as paraffin oil, is frequently used as a fuel for jet lighting, engines and heating processes in many technologies. The rate of heat transmission is the fundamental requirement of all phenomena. But this cannot be achieved from base fluid like paraffin oil due to its less efficiency to rise the rate of heat transmission and save energy lost due to high temperatures. Therefore, current analysis is to explore effect of the Lorentz force, viscous dissipation and solar radiation on kerosene oil with the combination of single-walled carbon nanotubes (SWCNTs) and Polytetrafluoroethylene (PTFE) in a porous convergent/divergent and stretching/shrinking channel. SWCNTs and PTFE are added to kerosene oil to produce the hybrid nanofluid. The designed problem is modeled in terms of partial differential equations PDEs. The nonlinear PDEs system is then reduced into ODEs using the transformations framework. The ND Solve technique is applied to numerically simulate the reduced boundary value problem, and the results are sketched and discussed. Obtained results demonstrate that velocity profile increase for the divergent channel and a fall in the convergence channel against higher value of porosity parameter and as well as Hartmann number.

The extension of nanoliquid obtained by adding nano-powder composite or various nanoparticles in regular liquid is term as hybrid nanofluid. Hybrid nanofluids are more potential materials that significantly uplift the thermophysical feature and capacity of heat transportation instead of single nanoparticle nanoliquid. Hence, the paramount interest of this paper is to model theoretically the flow of aqueous alumina–titania hybrid nanoliquid across a rotating channel. Temperature-based viscosity is addressed. This analysis further contributes the impact of heat source and dissipation phenomena. Additionally, two different shapes of nanoparticles, namely, bricks- and needle-shaped are included. Similarity variables dimensionless the governing problem. The obtained system is solved by employing Mathematica-based NDSolve approach. The impact of various embedded variables is elucidated graphically. The presence of hybrid nanocomposite greatly affects the temperature and Nusselt number than nanoparticles. Further outcomes declared that rotation and heat source variables significantly increase the thermal field for hybrid nanophase when compared with nanophase.