Modeling of separated flow over tailings storage facility

Abstract

Tailings storage facilities are an integral part of modern mining and beneficiation production and the most serious threat to environmental safety. Separated flow over surfaces, even in the case of constancy of their shape, is a very complex phenomenon. The occurrence of a separation with the rise of vortexes into the flow leads to a strong unsteadiness of the flow. To consider such flows, the most common in applied aerodynamics are vortex methods, which are based on replacing the surface and the wake formed behind it with some distribution of vorticity. Numerical calculation technique based on the method of discrete vortexes is used to model the separated non-stationary flow around the tailings storage facilities. This method makes possible to describe the structure of the vortex flow over the tailings storage facilities and behind it, to study the change of vortexes over time, to see the presence and absence of stagnant zones on the windward side of the tailings storage facilities. Prediction of the aerodynamic structure of the flow is a necessary component of the process of justifying decision-making regarding the use of means and methods for dust reduction.