Unsteady two-dimensional stagnation point flow of an incompressible viscous fluid over a flat deformable sheet is studied when the flow is started impulsively from rest and the sheet is suddenly stretched in its own plane with a velocity proportional to the distance from the stagnation point. After a similarity transformation, the unsteady boundary layer equation is solved numerically using the...

The present paper investigates the transient mixed convective boundary layer flow of an incompressible non-Newtonian quiescent nanofluid adjacent to a vertical stretching surface. The effects of the Brownian motion and thermophoresis are included for the nanofluid. Using appropriate non-similarity transformations the non-dimensional, coupled and highly non-linear system of equations is solved n...

We consider a heat transfer augmentation problem to minimize the entropy generation by assuming boundary-layer flow of nanofluid over moving wavy surface. The demonstrates great potential in enhancing process due its high thermal conductivity. famous Tiwari and Das model has been used present article. Two types water based nanofluids containing Cu Fe3O4 nanoparticles are considered. Moreover, s...

The efficient heat transfer performance of hybrid nanofluid making the fluid crucial in many industrial applications like exchangers, nuclear reactors, automotive cooling systems, and most manufacturing processes. This study aims to uncover properties an unsteady Falkner-Skan flows over a nonlinear moving wedge with convective boundary condition. water-based that is considered this research com...

This paper investigates hybrid nanofluids flowing around a circular cylinder of free convection under the constant surface heat flux. Nanoparticles copper oxides, Gold, and Aluminum (CuO, Au, Al) are considered to support transfer performance blood/water-based nanofluids. The governing model for which is in form non-linear partial differential equations (PDEs) first transformed more convenient ...

A technique is developed for obtaining the solution of second order over-damped non-linear systems based on Krylov-Bogoliubov-Mitropolskii (KBM) method small ratio eigenvalues. The also useful large illustrated by an example.

The assumptions that form our focus in this study are water or water-ethylene glycol flowing around a horizontal cylinder, containing hybrid nanoparticles, affected by magnetic force, and under constant wall temperature, addition to considering free convection. Tiwari–Das model is employed highlight the influence of nanoparticles volume fraction on flow characteristics. A numerical approximate ...

In the current workflow and heat exchange of a Casson nanoliquid across penetrable media above moving plate with variable thermal conductivity, adaptive thickness chemical reaction are analyzed. First, governing nonlinear equations partial derivative terms proper extreme conditions changed into ordinary suitable similarity conversions. Then resulting worked out using Keller box method. The effe...

The Karazhanbas Field (KBM) is a giant shallow heavy oil field in western Kazakhstan, less than 460 m depth. It contains heavy oil (μ ~400 cP) in seven reservoir zones from several to 40 m thick in unconsolidated sands with porosities 28-32%, permeabilities of ~0.5 D, and an arkosic lithology with angular grains. There is no free gas cap, and the structure is divided into fault-controlled block...

In the present investigation, a quadratically forced damped pendulum-type equation is solved analytically using several effective and highly accurate approaches. Some different types of pendulum oscillators linked to terms, in addition power damping term, are analyzed. first part, Krylov–Bogoliubov–Mitropolsky (KBM) technique ansatz method carried out for analyzing oscillator. second two varian...