We present a numerical study for the steady, coupled, hydrodynamic, heat and mass transfer of an incompressible micropolar fluid flowing over nonlinear stretching sheet. The governing differential equations are partially decoupled using similarly transformation then solved by two techniques – finite element method difference method. dimensionless translational velocity, microrotation (angular velocity), temperature distribution function computed different thermophysical parameters...

To meet the energy requirement of world, this work addresses MHD flow ternary hybrid nanofluid between two rotating and stretchable disks having porous medium. Thermal radiation effects along with velocity slips at interface fluid disk are considered in study. Three types nanoparticles, namely, Al 2 O 3 (alumina), CuO (copper oxide) Cu (copper), have been taken water as host fluid. The thermal characteristics (Al O[Formula: see text]) nanofluids formed by combination nanoparticles observed....

The water-based bioconvection of a nanofluid containing motile gyrotactic micro-organisms (moves under the effects gravity) over nonlinear inclined stretching sheet in presence nonuniform magnetic field has been investigated. This regime is encountered bio-nanomaterial electroconductive polymeric processing systems currently being considered for third-generation organic solar coatings, anti-fouling marine etc. Oberbeck–Boussinesq approximation along with ohmic dissipation (Joule heating)...

The magnetohydrodynamic flow of nanofluid is studied in the present analysis by using two parallel, rotating, and stretchable disks with a porous medium. thermal radiation effects along velocity slips at interface fluid disk are considered this work. water taken as base fluid, carbon nanotubes (CNTs), titanium dioxide (TiO[Formula: see text]), graphene oxide (GO) nanoparticles. corresponding equations modeled terms partial differential Von Karman similarity transformation approach adopted....

Abstract The current paper deals with viscous dissipation effects in a permeable (or porous) channel filled non‐Newtonian Casson fluid by considering the local thermal non‐equilibrium (LTNE) model. dependency of effective conductivities solid and phases on respective temperatures has been studied along spatially varying Biot number. Brinkman number parameter , conductivity variation porosity Darcy ratio phase are main governing parameters. Darcy–Brinkman model is employed to govern flow...

The present work addresses the axisymmetric flow of Maxwell fluid between two stretchable and rotating disks with porous regime. influence velocity slip convective heat transfer are considered to govern flow. energy equation is modeled using Cattaneo-Christov flux model. resulting mass, momentum PDE’s converted ODE’s by Von Karman similarity transformations. Successive linearization method implemented for numerical solution. tangential increases speed disks. enhancement in lower disc results...

The characteristics of buoyancy-driven convection nanofluid stream containing motile gyrotactic micro-organisms over a continuous heated surface are explored. benefits including to the suspension incorporate micro-scale mixing and foreseen enhanced stability nanofluid. For heat transfer mass processes, non-Fourier’s flux theory non-Fick’s employed. This is actively under investigation resolve some drawbacks famous Fourier’s Law Fick’s Law. modified parameters in conventional laws thermal...

The thermal conductivity of the porous materials is dependent on temperature in a range applications, including nuclear reactors and fossil fuel sources. LTNE (local nonequilibrium) model widely used to study interactions between solid fluid phases inside media. majority prior models assumed constant conductivities both phases, but actual practice, depend variations. In current study, effective channel are considered as functions respective temperatures by implementing model. Biot number...

The primary purpose of this study is to investigate the buoyancy mixed convection flow non-Newtonian fluid over a flat plate. addition small amount polymers into Newtonian solvent raises viscosity and generates elastic properties in resulting solution. To behavior these viscoelastic fluids, finite extensible nonlinear constitutive equations along with Peterlin’s closure (FENE-P model) are used. Along mass, momentum energy equations, also used examine rheology polymer Similarity...

Abstract Two‐dimensional forced convection heat transfer from a heated porous semi‐circular obstacle attached to the adiabatic channel wall is numerically studied in laminar and steady flow regime. The fluid assumed be Newtonian incompressible. aggregate influences of chosen ranges Prandtl number ( Pr ), Darcy Da porosity ε Reynolds Re blockage ratio β ) are explored. Darcy‐Brinkman‐Forchheimer model implemented tackle through obtained governing equations solved by FEM‐based COMSOL...

Abstract An unconfined air flow across a semi‐circular permeable/porous cylinder is numerically investigated for different Reynolds ( Re ) and Darcy numbers Da at fixed value of porosity. The Darcy‐Brinkman‐Forchheimer model has been administered to deal with the field inside porous cylinder. governing equations are solved by using finite element method‐based commercial software COMSOL Multiphysics. obtained analyzed streamline profiles vorticity contours. collective impact on drag...

A dynamic model for traffic flow is proposed to analyze the impact of occupancy in a multiple-loop network with single intersection. The graph representation lines obtained utilizing cell transmission model, and consequently, density equations are derived. macroscopic fundamental diagrams investigated different cases fraction vehicles. For double-loop lines, equilibrium densities, currents, travel time theoretically validated via simulation. It observed that densities increase linearly...