The encapsulation technique of phase change materials in the nanodimension is an innovative approach to improve heat transfer capability and solve issues corrosion during melting process. This new type nanoparticle suspended base fluids call NEPCMs, nanoencapsulated materials. goal this work analyze impacts pertinent parameters on free convection entropy generation elliptical-shaped enclosure f...

This paper investigates unsteady two-dimensional MHD flow past a rotating semi-infinite plate with an inclined magnetic field viscous dissipation, Ohmic and Joule heating. The fluid is assumed to be electrically conducting. governing non-linear partial differential equations for mass, momentum, energy, concentration are transformed into couple system by using appropriate dimensionless parameter...

We discuss a numerical 3D radiation-MHD simulation of penumbral fine structure in a small sunspot. This simulation shows the development of short filamentary structures with horizontal flows, similar to observed Evershed flows, and an inward propagation of these structures at a speed compatible with observations. Although the lengths of these filaments are much shorter than observed, we conject...

The very weak polarization of light from nearby stars reaches a maximum near the ecliptic plane in a position offset by λ ∼ 35 from the heliosphere nose direction. The position angle for the polarization in this ecliptic-plane peak is the same for near and distant stars, to within uncertainties, indicating the interstellar magnetic field direction is relatively constant over several hundred par...

in this paper we studied the thermal negativity in a two-qubit xx spin ½ chain model and xxx spin1/2 chain model(isotropic heisenberg model)spin-1/2 chain subjected to an external magnetic field inz direction. we calculate analytical relation for the thermal negativity for two qubit xx and xxx spinchain models in the external magnetic field. effects of the magnetic field and temperature on then...

Tiny interstellar dust grains causing the polarization of light from the nearest stars are deflected sideways in the outer heliosheath regions, along with the interstellar magnetic field. Observations of optical polarization of stars beyond the heliosphere nose, and at distances 5– 200 pc, suggest the direction of the upwind interstellar magnetic field is relatively constant. The polarization v...

This computational work explores the heat and mass transfer of copper water nanofluid flowing along an inclined plate with varying surface temperature concentration in presence a magnetic field radiation through permeable medium. The dimensionless governing equations are solved numerically using efficient finite-difference technique, which is fast convergent unconditionally stable. findings rev...

In this manuscript, we have investigated the peristaltic transport of Oldroyd-B fluid in an inclined channel. The channels are taken asymmetric into account and subjected to rotation presence a magnetic field gravity field. governing equations derived constitute nonlinear reduced under consideration large wave length small Reynolds number approximation. exact solution is derived. consequences p...

The effects of induced magnetic field, thermal and concentration convection on the peristaltic flow Prandtl nanofluids are explored in this study an inclined asymmetric channel. A detailed mathematical explanation is given for with double-diffusivity field. To simplify non-linear partial differential equations, long wavelength low approximation Reynolds number used. Using numerical technique, e...