Abstract
The current article is an understanding of heat transfer and non-Newtonian fluid flow with implications of the power-law fluid on a facing surface of the circular cylinder embedded at the end of the channel containing the screen. The cylinder is fixed with an aspect ratio of 4:1 from height to the radius of the cylinder. The simulation for the fluid flow and heat transfer was obtained with variation of the angle of screen $\frac {\pi }{6}\le \theta \le \frac {\pi }{3}$ , Reynolds number 1000 ≤ Re ≤ 10, 000 and the power-law index $0.7\le n\le 1.3$ by solving two-dimensional incompressible Navier-Stokes equations and the energy equation with screen boundary condition and slip walls. The results will be in a good match with asymptotic solution given in the literature. The results are presented through graph plots for non-dimensional velocity, temperature, mean effective thermal conductivity, heat transfer coefficient, and the local Nusselt number on the front surface of the circular cylinder. It was found that the ratio between the input velocity to the present velocity on the surface of the circular cylinder remains consistent and reaches up to a maximum of 2.2% and the process of heat transfer does not affect by the moving of the screen and clearly with the raise of power-law indexes the distribution of the heat transfer upsurges. On validation with two experimentally derived correlations, it was also found that the results obtained for the shear-thinning fluid are more precise than the numerically calculated results for Newtonian as well as shear-thickening cases. Finally, we suggest necessary measures to enrich the development of convection when observing with strong effects influenced by the screens or screen boundary conditions.
Highlights
AND LITERATURE REVIEWThe influence of fluid flow is existing universally in nature [1]–[3] and in countless engineering applications [4]–[6]
It was found that the ratio between the input velocity to the present velocity on the surface of the circular cylinder remains consistent and reaches up to a maximum of 2.2% and the process of heat transfer does not affect by the moving of the screen and clearly with the raise of power-law indexes the distribution of the heat transfer upsurges
A Newtonian fluid flow and the heat transfer was studied [20] around the circular cylinder ranging the Reynolds number 50-180 with keeping Prandtl as 0.7 for air
Summary
The influence of fluid flow is existing universally in nature [1]–[3] and in countless engineering applications [4]–[6]. Earlier than going to discuss the various aspects of the numerical outcomes of the Newtonian and non-Newtonian fluid flow with the addition of convection via the circular cylinder under the influence of the screen, we are attending to confirm our results by associating the benchmark solution using screen According to his conclusions, he reinforced the relation using the resistance coefficient κ, refraction coefficient η, and angle θ of the screen with that of the current speed of the fluid and inlet velocity Uin. The relationship is given by the eq (14). The main focusing of this article is to explain the significance of the parameter used in the current problem to optimize the thermal and non-thermal properties of the flow for example non-dimensional velocity of the fluid particles, non-dimensional temperature, mean effective thermal conductivity, heat transfer coefficient and the non-dimensional. We could conclude that by enhancing the Reynolds number the ratio
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