The topic of this paper is the peristaltic motion a non-Newtonian Jeffrey fluid with couple stress across porous medium inside horizontal conduit. unit strained by uniform magnetic field. It taken into account effects viscous dissipation, internal heat generation, and radiation. This approach solves equations momentum, temperature, velocity. numerical formulas for axial velocity, velocity are c...

In light of a local thermal non-equilibrium model, fully developed forced convection in an annulus filled with a porous medium is treated to elucidate its exact temperature solutions for both fluid and solid phases. In this study, the plug-flow approximation is assumed since Darcian velocity over the cross-section is uniform except in a small region very close to the walls. The inner wall is he...

Two-phase forced convective flow in microchannels is promising for the cooling of integrated circuits. There has been limited research on boiling flow in channels with dimensions below 100 m, in which bubble formation and flow regimes can differ from those in larger channels. This work develops single and multichannel experimental structures using plasma-etched silicon with pyrex glass cover, w...

Simulations of three-dimensional laminar forced convection adjacent to inclined backward-facing step in rectangular duct are presented to examine effects of step inclination on flow and heat transfer distributions. The step height is maintained as constant while its inclination angle is changed from 15 to 90 . The inlet flow is hydrodynamically steady and fully developed with uniform temperatur...

Analysis of lid driven square cavity flow air with three different ranges Ri and Re are analyzed using numerically. Adiabatic temperature is maintained at horizontal walls isothermal established the vertical in which top wall assumed to slide a uniform speed. Finite volume method techniques have used solve non dimensional governing equations. To visualize thermal characteristics, control parame...

In this manuscript, the LBM is applied for simulating of Mixed Convection in a Lid-Driven cavity with an open side. The cavity horizontal walls are insulated while the west Lid-driven wall is maintained at a uniform temperature higher than the ambient. Prandtl number (Pr) is fixed to 0.71 (air) while Reynolds number (Re) , Richardson number (Ri) and aspect ratio (A) of the cavity are changed in...

118 LLE Review, Volume 94 Introduction High-quality targets must be provided to achieve successful results from OMEGA cryogenic experiments.1 One type of target is a thin-walled polymer capsule with a fuel layer of solid deuterium (D2) or deuterium/tritium (DT) ice, approximately 100 mm thick, uniformly distributed on the inner wall of the capsule.2 To create the fuel layer, the capsule is plac...

In the present study the problem of mixed convection flow in the presence of magnetic field in a lid-driven square cavity with internal heat generation or absorption and uniform heating of bottom wall were investigated numerically. The square cavity vertical walls are maintained at cold temperature while the upper wall is insulated. The physical problem is then expressed mathematically by a set...

In the context of false vacuum decay at zero temperature, it is well known that bubbles expand with uniform proper acceleration. We show this uniformly accelerating expansion suffers from an instability related to bubble size. This can be observed in Minkowski spacetime as a tachyonic mode spectrum fluctuations for energy functional reference frame which wall appears static. such frame, arbitra...