Bödewadt Flow Over a Permeable Disk with Homogeneous-Heterogeneous Reactions: A Numerical Study

Abstract

We analyzed the onset of homogeneous-heterogeneous reactions in Bödewadt flow occurring over an isothermal and permeable surface. This research is based on the assumption that the homogeneous (bulk) reaction follows isothermal cubic autocatalator kinetics, whereas the surface reaction is governed by first-order kinetics. The heat energy released during the chemical reaction is assumed to be negligible. The governing equations are reducible to a set of self-similar equations, which are handled numerically. Asymptotic analysis was conducted, which revealed that the existence of a concentration boundary layer on the disk is possible only when the disk is subjected to a sufficient amount of suction. In a large suction situation, an exact formula for concentration profile ϕ was derived that strongly supports the obtained numerical solution. Our results demonstrate the mass transfer parameter considerably alters flow fields. The concentration at the wall varies substantially when the chemical reaction proceeds at a faster rate.

Rotationally symmetric flow of Cu-Al2O3/water hybrid nanofluid over a heated porous boundary

“…A hybrid nanofluid boundary layer in a generalized vortex flow subjected to viscous dissipation effect is analyzed. Representative problem given by equations ( 9) to (12) along with conditions (13) has been treated by a reliable computational platform bvp4c of MATLAB. To investigate flow behaviour under different controlling parameters, velocity fields represented by F g ð Þ ; GðgÞ and HðgÞ and temperature profile hðgÞ are displayed graphically (see Figures 2 to 5).…”

“…7 Motivated by Rahman and Andersson, 10 B€ odewadt flow with different physical effects has been explored in recent papers. [11][12][13] Hybrid nanofluids are novel class of working fluids produced by dispersing two or three small sized solid materials in conventional fluids (such as water, ethylene glycol, kerosene, vegetable oil etc.). Many theoretical and experimental researches suggest the benefits of nanoparticle working fluid with regards to the much needed heat transfer improvement in a number of technical sectors.…”

Numerical Treatment For MHD Axisymmetric Rotating Bodewadt Rheology Under Ohmic Heating And Viscous Dissipation Effects

“…Some recent attempts related to Bodewadt flow can be seen in Refs. [16][17][18][19][20][21][22][23][24][25][26][27].…”

A numerical study of rotationally symmetric nanofluid flow over a permeable surface using Buongiorno model

“…4 In recent times, Bödewadt flow situation is assessed under different physical parameters namely wall suction, radial stretching, nanoparticles, partial slip and magnetic force term (see. 5–13 )…”