Abstract In this paper, we present a theoretical study of the combined effects activation energy and binary chemical reaction in an unsteady mixed convective flow over boundary infinite length. The current incorporates influence Brownian motion, thermophoresis viscous dissipation on velocity fluid, temperature fluid concentration species. equations are solved numerically to high degree accuracy using spectral quasilinearization method. motion was noted as main process by which mass is...

Abstract The effects of a homogeneous-heterogeneous reaction on steady micropolar fluid flow from permeable stretching or shrinking sheet in porous medium are numerically investigated this paper. model developed by Chaudhary and Merkin (Fluid Dyn. Res. 16:311-333, 1995) for boundary layer with equal diffusivities reactant autocatalysis is used extended study. uniqueness problem lies the fact that solutions possible all values parameter <mml:math...

For the first time, a numerical investigation is performed to study influences of magnetic field on Marangoni boundary layer flow water and ethylene glycol based γ Al2O3 nanofluids over flat surface in presence non-linear thermal radiation. Experimental thermo-physical properties an effective Prandtl number model for are considered analyse convection. To effects, electric conductivities both nanoparticles base fluids taking into account. Numerical solutions resulted equations obtained using...

The heat and mass transport with Arrhenius activation energy has countless uses such as in nuclear reactors, the synthesis of chemical compounds, geothermal artificial lakes, retrieval thermal lubricants. focus this work is analysis binary reaction a stagnation point Casson nanofluid flow over stretching sheet. system subjected to nonlinear radiation magnetic field. equations are simplified using Williams Rhyne non-similar transformation. solution transformed coupled partial differential...

In this paper, we study the effects of nonlinear convection and thermophoresis in steady boundary layer flow over a vertical impermeable wall non-Darcy porous medium. Both fluid temperature solute concentration are assumed to be while at wall, both maintained constant value. A similarity transformation was used obtain system ordinary differential equations, which were then solved numerically using Matlab bvp4c solver. comparison numerical results with previously published for special cases...

We investigate the effects of momentum, thermal, and solute slip boundary conditions on nanofluid layer flow along a permeable surface. The conventional no-slip at surface are replaced by conditions. At moderate to high temperatures, temperature-concentration dependence relation is nonlinear Soret effect significant. governing partial differential equations solved numerically. influence significant parameters fluid properties as well skin friction, local Nusselt number, Sherwood nanoparticle...

This research article numerically studies the influences of an effective Prandtl number along with magnetic field on melting heat transport characteristics Ethylene glycol/Water gamma Al2O3 nanoparticles over a stretching sheet. To analyse impacts number, non-dimensional transfer boundary conditions are derived for first time and without number. A non-linear form thermal radiation is used. The experimental based thermo-physical properties nanofluids considered. electric conductivities Al2O3,...

The objective of this paper was to illustrate the frequent and wide occurrence unsteady two dimensional MHD flow an UCM fluid over a stretching surface in presence higher order chemical reaction diverse range applications, both nature technology. governing partial differential equations are converted into ordinary by using similarity transformation. were numerically solved shooting technique. effects different parameters on field mass transfer shown graphs tables. physical significantly...

The transient mixed convection boundary layer analysis of incompressible flow over an isothermal vertical cylinder is embedded in a saturated porous medium the vicinity for Gyrotactic microorganism effects. mathematical model used bioconvective nanofluid incorporates effects Brownian motion, thermophoresis, and gyrotactic microorganisms. Moreover, resulting governing nonsimilarity equations are changed into partial differential solved numerically. results explained graphically various...

Abstract The paper discusses the effects of homogeneous-heterogeneous reactions on stagnation-point flow a nanofluid over stretching or shrinking sheet. model presented describes mass transfer in copper-water and silver-water nanofluids. governing system equations is solved numerically, study shows that dual solutions exist for certain suction/injection, stretching/shrinking magnetic parameter values. Comparison numerical results made with previously published special cases.

Purpose – The purpose of this paper is to study heat and mass transfer in copper-water silver-water nanofluid flow over stretching sheet placed saturated porous medium with internal generation or absorption. authors further introduce a new algorithm for solving problems fluid mechanics. model used the incorporates nanoparticle volume fraction parameter consideration chemical reaction effects among other features. Design/methodology/approach partial differential equations were transformed...

We investigate the effects of thermal radiation and convective boundary conditions on heat mass transfer in nanofluid flow over a permeable flat plate. The mathematical model for incorporates variations nanoparticle volume fraction up to 20%. performance two water-based nanofluids, namely, stable suspensions copper gold nanoparticles water was investigated. governing partial differential equations were transformed into ordinary ones using similarity transformation solved numerically....

Abstract In this study we use a new spectral relaxation method to investigate heat transfer in nanofluid flow over an unsteady stretching sheet with thermal dispersion and radiation. Three water-based nanofluids containing copper oxide CuO, aluminium Al 2 O 3 titanium dioxide TiO nanoparticles are considered study. The transformed governing system of nonlinear differential equations was solved numerically using the that has been proposed for solution boundary layer equations. Results were...