The study of bubbling fluidized bed systems with horizontal solids flow is pivotal for advancing applications in chemical processing, waste management, and energy production, where efficient solid-gas interactions are crucial. This research employs a cold-scale model, adhering to Glicksman's simplified set of scaling laws, to investigate the fluid dynamics within these systems. Utilizing a magnetic solids tracing technique, we precisely mapped the solids' velocity, while pressure transducers provided a detailed pressure profile along the solids flow path. To complement experimental findings and enhance flow profile understanding, Computational Fluid Dynamics (CFD) simulations were conducted using COMSOL Multiphysics and ANSYS Fluent, focusing on the Eulerian-granular flow model. The comparison between these two advanced simulation tools highlights distinct aspects of fluid behavior and solid interaction within the system, contributing to the optimization of fluidized bed operations.