In this paper, mixed convection flow of couple stress fluid in circular annulus is studied. First order chemical reaction, Soret and Dufour effects are taken into consideration. The governing partial differential equations are transformed into a system of ordinary differential equations and solved by Homotopy Analysis Method (HAM). The effects of Soret number, Dufour number, chemical reaction p...

A solution is given for the thermoelastic stress field due to the obstruction of a uniform heat flux by a plane crack in a generally anisotropic body. A Green's function formulation is used to reduce the problem to a set of singular integral equations which are solved in closed form. When the crack is assumed to be traction free, the crack opening displacement is found to be negative over one h...

Abstract Thermally coupled constitutive relations are generally used to determine material constants and elastic moduli (Young's modulus shear modulus) of solid media. Conventional studies on this issue mainly based the linear temperature dependence moduli, whereas analytical difficulties often encountered in theoretical nonlinear dependence, particularly at high temperatures. This study invest...

An investigation has been made to study the off-centered stagnation flow of a couple stress fluid over a rotating disk. The model developed for the governing problem in the form of partial differential equations has been converted to ordinary differential equations with the use of suitable similarity transformation. The analytical approximation has been made with the most promising analytical a...

This article is concerned with the theoretical analysis of the functionally graded magneto-electro-thermoelastic hollow sphere due to uniform surface heating. We analyze the transient thermoelastic problem for a functionally graded hollow sphere constructed of the spherical isotropic and linear magneto-electro-thermoelastic materials using a laminated composite mode as one of theoretical approx...

Sand production is a complex phenomenon caused by the erosion of borehole walls during extraction hydrocarbons. In this paper, sanding process in typical Thick-Walled Hollow Cylinder (TWHC) test numerically simulated. The main objective study to model particulate mechanism sand granular assemblies with different bonding conditions and examine effects parameters such as stress level cavity size ...