A numerical study was performed of natural laminar convective heat transfer to its concentrated triangular enclosure around a horizontal circular cylinder. The air-filled kept the inner and outer cylinders at uniform temperatures. Boussinesq density approximation momentum problem control volume approach iteratively resolved governing equations explain buoyancy. CFD results show that velocity be...

Abstract Pressure drop and flow pattern of oil–water flows were investigated in a 19-mm ID clear polyvinyl chloride pipe consisting U -bend with radius curvature 100 mm. The range for oil water superficial velocities tested was $$0.04 \le U_{{{\text{so}}}} 0.950 \;{\text{m/s}}$$ 0.04≤<...

This paper presents a novel face recognition approach which uses only partial information in the recognition stage. The algorithm is based on an extension of the classical PCA and is called Partial PCA (P2CA). The PCA is a combined 2D-3D scheme which requires 3D face data in the training process but can process 2D pictures in the recognition stage. The strategy has been proven to be very robust...

in river meandering, when flow passes through a bend, reduction of flow velocity and rising hydrostatic pressure cause super elevation phenomena at outer side and reduction of water surface at inner-side of the bend. a helical motion results, causing erosion of the outer side of the bend. installation of submerged vanes on the stream bed can reduce erosion of the outer bank significantly. in th...

In this paper we discuss the stability of a uniform Fréedericksz configuration in highly anisotropic thin nematic films. We show that the Fréedericksz transition in a bend geometry is at least two-dimensional, and it occurs at field strengths lower than the known classical threshold.

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