EXPERIMENTAL STUDY OF WELD CHARACTERISTICS DURING FRICTION STIR WELDING (FSW) OF ALUMINUM ALLOY (AA6061-T6)

Ajaib S. Banyal

Abstract: Thermosolutal convection in a layer of Rivlin-Ericksen viscoelastic fluid of Veronis (1965) type is considered in the presence of uniform vertical magnetic field and rotation in a porous medium. Following the linearized stability theory and normal mode analysis, the paper through mathematical analysis of the governing equations of Rivlin-Ericksen viscoelastic fluid convection in the presence of uniform vertical magnetic field and rotation, for any combination of perfectly conducting free and rigid boundaries of infinite horizontal extension at the top and bottom of the fluid, established that the complex growth rate ? of oscillatory perturbations, neutral or unstable for all wave numbers, must lie inside right half of the a semi-circle

Keywords: Thermosolutal convection; Rivlin-Ericksen Fluid; Magnetic field; Rotation; PES; Rayleigh number; Chandrasekhar number; Taylor number

DOI: https://doi.org/10.15623/ijret.2012.0103005