Physical Analysis of Unsteady Thermally Radiative Maxwell Swirling Flow Between Two Orthogonal Coaxial Disks

ABSTRACT Fluid flow over a spinning disk is significant since it is used in various engineering and scientific sectors. The unsteady swirling flow is adjusted for Maxwell fluid over porous spinning and orthogonally coaxial moving disks with an expansion/contraction parameter in thermophoresis and Brownian motion. A dimensionless system of ordinary differential equations (ODEs) has been produced by transforming the governing partial differential equations (PDEs) using an appropriate transformation framework. Numerical solutions have been obtained using the bvp4c technique. This study looks at how key physical properties like velocity, energy, and concentration are affected by mathematical abstractions. The results are shown graphically and thoroughly analyzed to obtain an understanding of the system's behavior. Expanding disks reduce fluid velocity, and the rate of decrease depends on the relaxation time of the Maxwell fluid. At the same time, the contracting disks increase the fluid velocity. The skin friction coefficient increases with increasing Reynold's number and radiation parameter.