## Article
[PERSON] et al. [4] investigated the numerical results for laminar entry-flow in a channel with the temperature-dependent viscosity effects due to heat transfer across the wall. They combined the temperature-dependent viscosity in a single auxiliary function for momentum and heat transfer. Flow due to the thermal bar by considering the reduced gravity impact was investigated by [PERSON] and [PERSON] [5]. [PERSON] [6] discussed free convection flow on an elliptical cylinder with variable viscosity and constant surface heat flux. [PERSON] and [PERSON] [7] proposed a new constitutive model for heat flow to achieve the numerical findings for shear-dependent fluid viscosity and temperature thermal conductivity fluctuation along two horizontal flat plates, one of which is at a higher temperature. [PERSON] et al. [8] derived an analytical analysis to estimate convective heat transfer within a weak gravitational field. Different situations of heat transmission through electrically conducting forms have been studied by [PERSON] et al. [9; 10]. The steady numerical solutions of mixed convection buoyant flow over a magnetized vertical surface with temperature-dependent fluid viscosity and temperature thermal conductivity have been reported in [11]. Convective heat transfer stems from fluid mass transport across a temperature gradient but mixed convection forms incorporate two primary transport processes: diffusion and advection which are the principle mechanisms of convective heat transfer in classical continuum mechanics. In advection, the bulk fluid can transport the energy which arises from externally forced mass flow due to being gravitydriven. The dependence of free convective heat transfer on gravity will be crucial in future space exploration missions. As people begin to venture beyond Earth's boundaries, their spacecraft will be subjected to varying degrees of gravity during transit and at various destinations, such as the Moon and Mars. [PERSON] et al. [12] used the Galinstan alloy for high heat-flux on a mini-channel heat sink to compute the numerical results for the heat transfer mechanism. They came to the conclusion that, for a given channel length, flow resistance is determined by channel width, height, and coolant velocity. [PERSON] et al. [13] used numerical methods to solve an MHD micropolar Carreau nanofluid flow problem along a stretching sheet with heat radiation. The effects of internal energy, viscous dissipation and joule heating were also included in the energy equation to analyze the heat transfer phenomena. [PERSON] et al. [14] performed a slug-flow mechanism in a rectangular micro-channel to obtain the heat-transfer performance experimentally and numerically. In [15], a numerical simulation of the electrically conducting peristaltic flow of Casson fluid in the presence of slip-velocity in a porous-channel was performed. The authors noticed that as the slip parameter was increased, the magnitude of the pressure gradient decreased. The authors [16] looked at the effects of varying density on the oscillating mixed convection flow around a non-conducting cylinder. [PERSON] et al. [17] performed an experimental examination around a square cylinder contained in a rectangular channel to develop a heat transfer problem using a non-intrusive diagnostic technique. The analysis of mixed convection flow and heat transfer in the presence of an induced magnetic field along a circular cylinder has been investigated at high Reynolds number in [18; 19; 20]. A numerical simulation of thermo-hydraulic flow and heat transfer improvement in a 3D corrugated circular pipe has been investigated under varying structure configuration parameters in [21; 22; 23; 24]. [PERSON] et al. [25; 26] developed a catalyst composed of magnetic nanoparticles containing alumina carrying Ru nanoparticles in a slurry-type reactor by applying an AC magnetic field and conventional heating effects for hydrogenation.