After two decades of development, the Lattice Boltzmann method has gain noticeable popularity as an alternative numerical approach for modeling the fluid flow. The main objective of this research is to study the contaminated flow removal from rectangular cavity and the effects of Reynolds varying on the removal percentage. In this research, solid-fluid flow analysis using lattice Boltzmann method, is offered for over cavity flow by considering different Reynolds numbers with different cavity aspect ratios. This research intends to provide the liquid and solid particle interaction investigation results by employing the Lagrangian point force approach for the particle's trajectory analysis in both lid driven cavity flow and flow over cavity.