Finite element examination of hydrodynamic forces in grooved channel having two partially heated circular cylinders
TL;DR: In this article, a case study on an examination of hydrodynamic forces experienced by partially heated circular obstacles in a grooved channel is devoted to report case study, where two partially heated rectangular ribs are placed in between channel as obstacles.
About: This article is published in Case Studies in Thermal Engineering.The article was published on 2020-04-01 and is currently open access. It has received 38 citations till now. The article focuses on the topics: Drag & Lift (force).
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TL;DR: In this paper, the duality of solutions and the flow and heat transfer of the hybrid nanofluid past a shrinking cylinder in the appearance of Joule heating were observed.
Abstract: The objectives of the present study are (i) to observe the duality of solutions, and (ii) to investigate the flow and heat transfer of the hybrid nanofluid past a shrinking cylinder in the appearance of Joule heating. The single phase nanofluid model with modified thermophysical properties are used for the mathematical model. The similarity transformation simplifies the model (PDEs) into similarity (ordinary) differential equations. bvp4c solver is used to compute the reduced equations. For the validation part, the analytical solution is developed using an exact analytical method and compared with the numerical values for several cases. First and second solutions are observable for the shrinking cylinder case only if suction parameter is applied. Meanwhile, only the first solution is found to be stable from the stability analysis. The application of high suction strength make the reduced heat transfer rate is lower for hybrid nanofluid (Cu-Al2O3/water) than alumina-water nanofluid but, opposite result is found for the skin friction coefficient. The addition of curvature parameter (flat plate to cylinder) can quicken the separation process of boundary layer. This results are conclusive to the pair of alumina and copper only.
88 citations
TL;DR: In this paper, a numerical analysis of the buoyantly convective non-Newtonian fluid flow equipped in hexagonal shaped cavity is presented, where a uniformly heated T-shaped fin is embedded at lower wall of hexagonal cavity.
46 citations
TL;DR: In this paper, the thermal aspects of non-Newtonian flow field manifested with the buoyant convection effect in a closed cavities is not abundantly investigated as yet due to complexity of boundary constraints.
35 citations
TL;DR: In this article, a numerical research on uniformly heat generating γ Al2O3-H2O nanofluid filled square cavity with multiple obstacles of different shapes is carried out.
35 citations
TL;DR: In this paper, the authors present the bioconvection flow of nanofluid induced by two stretchable disks separated at a confined distance, and the convergence of solution for velocity, temperature, concentration and motile microorganisms profiles are examined carefully.
32 citations
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TL;DR: In this paper, a plastischem material fliesst aus einem Spalt with einer Geschwindigkeit, die proportional zum Abstand vom Spalt ist.
Abstract: Eine Platte aus plastischem Material fliesst aus einem Spalt mit einer Geschwindigkeit, die proportional zum Abstand vom Spalt ist. Eine exakte Losung der Grenzschichtgleichungen fur die von der Platte erzeugte Luftbewegung wird gegeben. Oberflachenreibung und Warmeleitungskoeffizient werden berechnet.
3,317 citations
TL;DR: In this article, the momentum and heat transfer in a laminar liquid film on a horizontal stretching sheet is analyzed. And the governing time-dependent boundary layer equations are reduced to a set of ordinary differential equations by means of an exact similarity transformation.
362 citations
TL;DR: In this article, an analysis of flow and heat transfer characteristics in an electrically conducting fluid near an isothermal sheet is carried out, and the resulting coupled nonlinear differential equations are integrated numerically.
264 citations
TL;DR: In this article, the heat transfer in a stagnation-point fluid flow over a flat sheet stretching with a linear velocity was considered and the thermal conductivity was assumed to vary linearly with temperature.
171 citations
TL;DR: In this paper, an analysis is carried out to study the flow and heat transfer characteristics in a second grade fluid over a stretching sheet with prescribed surface temperature including the effects of frictional heating, internal heat generation or absorption, and work due to deformation.
Abstract: An analysis is carried out to study the flow and heat transfer characteristics in a second grade fluid over a stretching sheet with prescribed surface temperature including the effects of frictional heating, internal heat generation or absorption, and work due to deformation. In order to solve the fourth-order non-linear differential equation, associated with the flow problem, a fourth boundary condition is augmented and a proper sign for the normal stress modulus is used. It is observed that for a physical flow problem the solution is unique. The solutions for the temperature and the heat transfer characteristics are obtained numerically and presented by a table and graphs. Furthermore, it is shown that the heat flow is always from the stretching sheet to the fluid.
148 citations