Repercussions of uniform/non-uniform thermal gradients such as linear, parabolic, inverted piecewise linear gradient heated from below (PLHB), cooled above (PLCA) and step function (SF) in conjunction with magnetic flux on the onset Darcy-Rayleigh-Benard-Marangoni (DRBMM) convection a composite layer involving incompressible fluid holding horizontal adiabatic boundaries, rigid beneath porous fr...

In this paper different high temperature TES components are numerically analyzed. The difference is defined by the different type of porous medium employed in the storage. Two different porous media are considered: spheres or foams. In all cases a ceramic material is considered. In the formulation of the model it is assumed that the system geometry is cylindrical, the fluid and the solid thermo...

Background: Noise pollution is considered as a stressful factor in every day’s life of the industrial world. The present study was designed to investigate the probable effects of different time exposure of noise stress on histomorphometric changes of adrenal gland, plasma cortisol and body weight of the rat. Methods: Sixty adult male Wistar rats were divided into two series of short time noise ...

background: noise pollution is considered as a stressful factor in every day’s life of the industrial world. the present study was designed to investigate the probable effects of different time exposure of noise stress on histomorphometric changes of adrenal gland, plasma cortisol and body weight of the rat.   methods: sixty adult male wistar rats were divided into two series of short time nois...

In the present study, analytical solutions for thermally developing flows in porous media under local thermal non-equilibrium (LTNE) condition are derived for different fundamental models. The analytical solutions are validated by comparison with the numerical results. Based on the analytical solutions, the local Nusselt number is obtained, and the dimensionless thermal entry length nc is predi...

Abstract Thermal convection in a fluid saturating an anisotropic porous medium local thermal nonequilibrium (LTNE) is investigated, with specific attention to the effect of variable viscosity on onset convection. Many fluids show remarkable dependence temperature that cannot be neglected. For this reason, we take into account whose decreases exponentially depth, according Straughan (Acta Mech. ...

The effect of thermal radiation within a porous medium while incorporating local thermal nonequilibrium (LTNE) is investigated in this work, with specific application to solar air receivers. It is shown that the radiation effect is significant. The temperature distributions for both solid and fluid phases are affected by conduction-radiation parameter N, the ratio of solid to fluid phase conduc...