The paper presents the semi-numerical solution for the magnetohydrodynamic (MHD) viscous flow due to a stretching sheet caused by boundary layer of an incompressible viscous flow. The governing partial differential equations of momentum equations are reduced into a nonlinear ordinary differential equation (NODE) by using a classical similarity transformation along with appropriate boundary cond...

Related Articles Lagrangian evolution of the invariants of the velocity gradient tensor in a turbulent boundary layer Phys. Fluids 24, 105104 (2012) Effects of moderate Reynolds numbers on subsonic round jets with highly disturbed nozzle-exit boundary layers Phys. Fluids 24, 105107 (2012) Particle transport in a turbulent boundary layer: Non-local closures for particle dispersion tensors accoun...

To simulate the effect of free st ream turbulence on turbulent spot formation, experiments were conducted on the interaction of localized three-dimensional disturbances with the harmonic waves in a laminar boundary layer on a flat plate. Experiments conducted in three-dimensional diverging flow (but zero pressure gradient) show, while individually the disturbances decay downstream, their intera...

Related Articles Lagrangian evolution of the invariants of the velocity gradient tensor in a turbulent boundary layer Phys. Fluids 24, 105104 (2012) Effects of moderate Reynolds numbers on subsonic round jets with highly disturbed nozzle-exit boundary layers Phys. Fluids 24, 105107 (2012) Particle transport in a turbulent boundary layer: Non-local closures for particle dispersion tensors accoun...

Related Articles Lagrangian evolution of the invariants of the velocity gradient tensor in a turbulent boundary layer Phys. Fluids 24, 105104 (2012) Effects of moderate Reynolds numbers on subsonic round jets with highly disturbed nozzle-exit boundary layers Phys. Fluids 24, 105107 (2012) Particle transport in a turbulent boundary layer: Non-local closures for particle dispersion tensors accoun...

in this paper, homotopy perturbation method (hpm) has been applied to investigate the effect of magnetic field on cu-water nanofluid flow in non-parallel walls. the validity of hpm solutions were verified by comparing with numerical results obtained using a fourth order runge–kutta method. effects of active parameters on flow have been presented graphically. the results show that velocity in bo...

An oscillatory, zero-net-mass flux Jet and Vortex Actuator (JaVA) was modelled as part of a flat plate and simulated in a boundary layer flow. JaVA is an active flow control device that can be used for flow separation control and thus can delay boundary layer transition. It has been already shown experimentally that JaVA induced flow types in still water include angled and vertical jets, wall j...

This paper presents a theoretical study on the velocity distribution and the friction factor of boundary layer flows with polymer additives starting from the concept of “stress deficit.” A novel method of order of magnitude analysis is developed, which converts the governing equations of boundary layer flow into a solvable ordinary differential equation, thus the total shear stress distribution...

The present study is concerned with effect of exciting boundary layer on increase in heat transfer from flat surfaces. As any increase in heat transfer between a fluid inside a face and another one outside of it can cause an increase in some equipment's efficiency, so at this present we have tried to increase the wall's heat transfer coefficient by exciting the fluid boundary layer. By a collis...

to enhance the understanding of the impact of obstacle buildings on pollution transportationand dispersion in the atmospheric boundary layer, it is necessary to know the atmospheric flow characteristics over terrains. wind flow characteristics in a boundary layer over a step-shaped cliff topography model with rough and smooth surfaces were studied numerically using computational fluid dynamics ...