The theory of superimposed incremental elastic deformations is applied to a deformed configuration residually-stressed circular cylindrical tube. tube subject internal or external pressure and an axial load that maintain its shape, then bifurcations from this shape are analysed. Detailed governing equations boundary conditions provided for axisymmetric, prismatic asymmetric general form strain–...

In this research, the heat transfer coefficient (HTC) and pressure drop of alternating cross-section flattened (ACF) tubes were investigated experimentally compared with same parameters a circular tube. Three different ACF fabricated from copper tubing an internal diameter 4.5 mm, thickness 1 length 400 mm. The twist angles 30, 45, 90°. experimental ranges covered mass flux 729–1,434 kg/m2s 12–...

The present paper is devoted to study the flow of an incompressible viscous, electrically conducting fluid (blood) in a rigid inclined circular tube in the presence of transverse magnetic field. The blood is considered to be Newtonian fluid. The analytical expression for velocity profile and flow rate are obtained. The velocity profile and flow rate for various values of Hartmann number and inc...