Analysis of Power Law Fluids and the Heat Distribution on a Facing Surface of a Circular Cylinder Embedded in Rectangular Channel Fixed With Screen: A Finite Element’s Analysis

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 63    , Reynolds number 1000 Re 10,000  and the power-law index 0.7 1.3 n  by solving the 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 the 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 the Newtonian as well as shear-thickening cases. Finally, we suggest the necessary measures to enrich the the development of convection when observing with the strong effects influenced by screens or screen boundary conditions.

Multiple solutions and their stability for a Ti-alloy nanofluid saturated Darcy porous medium: Flow separation and reversal

“…To felicitate it, a mathematical analysis on the non-Newtonian Al-Cu-CH 3 OH and Cu-CH 3 OH nanofluid together with Joule heating and heat sink/source has been explored by Reddy et al 35 Jafar 36 provided numerical solution for the flow of an electrically conducting water-copper-based nanofluid in the presence of radiation and heat generation. Recently, Memon et al 37 and Ganie et al 38 conducted their investigations on the heat transfer rate for different fluid flows. As per the contributors’ awareness, the impacts of inclined MHD, slip velocity, heat generation and Joule heating on a Ti-alloy nanofluid flow past an exponentially permeable stretching sheet through a porous medium are not addressed so far.…”

Aggregation Effects on Entropy Generation Analysis for Nanofluid Flow over a Wedge with Thermal Radiation: A Numerical Investigation

“…The threedimensional nanofluid flow model with the use for solar energy was explored by Ahmad Khan et al [17]. Some recent demonstration on flow in circular rings and circular cylinder can be seen in [18,19].…”

Thermal decomposition of propylene oxide with different activation energy and Reynolds number in a multicomponent tubular reactor containing a cooling jacket

“…The results were displayed with graphs and tables, similar to those reported in Refs. 42 – 46 . The numerical results contrast with the asymptotic solution gained by the implementation of the screen boundary in problems.…”