Flow simulation along human lung channel is one of the interests investigation in fluid dynamics. We have studied flow phenomena 11th generation as porous medium. The governing equations medium been solved numerically using finite difference scheme. effect different parameters are illustrated graphically. It observed that rate increases for increasing value pressure gradient, porosity effect, e...

This paper analyzes the MHD flow and heat transfer of a pure fluid nanofluid through porous medium in vertical channel. The right half channel contains left nanofluid, which is immiscible with half. Channel walls are impermeable at constant temperatures. An external homogeneous magnetic field perpendicular to applied on Darcian approach used model medium. Relevant differential equations solved ...

In order to better understand the performance of screen channel liquid acquisition devices (LADs) in liquid oxygen (LOX), a computational fluid dynamics (CFD) simulation of LOX passing through a LAD screen channel was conducted. In the simulation, the screen is taken as a ‘porous jump’ where the pressure drop across the screen depends on the incoming velocity and is formulated by Δp = Av + Bv. ...

In this study, the momentum and energy equations of laminar flow of a non-Newtonian fluid are solved in an axisymmetric porous channel using the least square and Galerkin methods. The bottom plate is heated by an external hot gas, and a coolant fluid is injected into the channel from the upper plate. The arising nonlinear coupled partial differential equations are reduced to a set of coupled no...

In this paper, we studied the effects of heat transfer and magnetic field on the peristaltic flow of a Jeffrey fluid through a porous medium in an asymmetric channel under the assumptions of long wavelength and low Reynolds number. Expressions for the velocity and pressure gradient are obtained analytically. The effects of Hartmann number, Darcy number, phase shift, Jeffrey fluid parameter and ...

The present analysis investigates non-Darcy forced convective heat transfer in a channel confined by two parallel walls subjected to uniform heat flux in a highly porous medium saturated with a non-Newtonian power-law fluid. Extensive numerical integrations have been carried out utilizing the Brinkman-Forchheimer extension of the Darcy model in order to study the effects of pseudoplasticity, an...

This paper addresses entropy generation in the flow of an electrically-conducting couple stress nanofluid through a vertical porous channel subjected to constant heat flux. By using the Buongiorno model, equations for momentum, energy, and nanofluid concentration are modelled, solved using homotopy analysis and furthermore, solved numerically. The variations of significant fluid parameters with...

The effects of velocity slip and Joule heating on peristaltic flow of MHD Newtonian fluid in a porous channel with elastic wall properties have been studied under the assumptions of longwavelength and low-Reynolds number. The analytical solution has been derived for the stream function, temperature and heat transfer coefficient. The emerging flow parameters on the velocity, temperature and heat...

Electron emission induced by X-ray radiation in secondary-emission porous materials was investigated. © 2000 MAIK “Nauka/Interperiodica”. Secondary-emission porous materials are widely used as a working substance in electromagnetic and corpuscular radiation detectors [1–5]. The detection process in this case is governed by the interaction between primary radiation and a porous material, fastpri...

We study the scale up problem for ow in porous media. The general nature of this problem is outlined, leading to a discussion of assumptions on random elds appropriate for the description of geological heterogeneities. The main point of this paper is to use direct numerical simulation to evaluate the ensemble averages describing uid dispersion, for ow in porous media. The relation between ensem...