laminar mixed convection of aluminium oxide (al2o3)–water nanofluid flow in an inclined annulus using a single-phase approach was numerically studied. constant heat flux boundary conditions were applied on the inner and outer walls. all the thermophysical properties of nanofluid, such as, viscosity, heat capacity, thermal conductivity, and thermal expansion coefficient, except density in the bo...

Underbalanced drilling as multiphase flow is done in oil drilling operation in low pressure reservoir or highly depleted mature reservoir. Correct determination of the pressure loss of three phase fluids in drilling annulus is essential in determination of hydraulic horsepower requirements during drilling operations. In this paper the pressure loss of solid-gas-liquid three-phase fluids flow in...

We report the first resolved scattered light images of the circumstellar dust disk around the old Pre-Main Sequence star HD141569A. The disk seen in HST/NICMOS2 images shapes a bright annulus inclined at 37.5±4.5 from edge-on. This ring peaks at 325±10AU from the star with a characteristic width of ∼ 150AU. At 1.6μm, the dust grains scatter a total flux density of at least 4.5±0.5mJy. Our disk ...

underbalanced drilling as multiphase flow is done in oil drilling operation in low pressure reservoir or highly depleted mature reservoir. correct determination of the pressure loss of three phase fluids in drilling annulus is essential in determination of hydraulic horsepower requirements during drilling operations. in this paper the pressure loss of solid-gas-liquid three-phase fluids flow in...

Laminar mixed convection of Aluminium oxide (Al2O3)–water nanofluid flow in an inclined annulus using a single-phase approach was numerically studied. Constant heat flux boundary conditions were applied on the inner and outer walls. All the thermophysical properties of nanofluid, such as, viscosity, heat capacity, thermal conductivity, and thermal expansion coefficient...

We report the first resolved scattered light images of the circumstellar dust disk around the old Pre-Main Sequence star HD 141569 A. The disk seen in HST/NICMOS2 images shapes a bright annulus inclined at 37.5◦ ± 4.5◦ from edge-on. This ring peaks at 325±10 AU from the star with a characteristic width of ∼ 150 AU. At 1.6 μm, the dust grains scatter a total flux density of at least 4.5 ± 0.5 mJ...

Laminar mixed convection of Aluminium oxide (Al2O3)–water nanofluid flow in an inclined annulus using a single-phase approach was numerically studied. Constant heat flux boundary conditions were applied on the inner and outer walls. All the thermophysical properties of nanofluid, such as, viscosity, heat capacity, thermal conductivity, and thermal expansion coefficient, except density in the bo...

The application of the time-inclined method in a fourth-order unstructured flux-reconstruction code for turbomachinery is demonstrated. Inviscid and viscous unsteady results due to interaction an incoming gust total pressure with linear cascade flat plates T106A low-pressure turbine airfoils are reported. agreement between equivalent full-annulus multipassage solution very high both cases. Visc...

Increasing volumes of drilling lateral branches trunks, using the main also put forward need to solve a number new problems. Among them, there are small radial gaps between production string or liner and wall wellbore, which make it difficult ensure tightness annulus. The problem is exacerbated by fact that on an inclined horizontal section always eccentrically displaced relative axis well. The...