Experimental studies and numerical model validation of overflowing 2D foam to test flotation cell crowder designs

摘要: Abstract A computational fluid dynamics model of froth motion has been developed to assess different flotation cell designs. This work presents an implementation the in a 2D case, compare simulated bubble velocity distribution and streamlines experimental foaming system. The uses finite elements solve Laplace's equation for potential function from which foam can be obtained. It requires air recovery, or amount that overflows as unburst bubbles, input parameter calculate streamlines. recovery was obtained by image analysis vertical, overflowing monolayer (2D) created Hele-Shaw column, mimicked important flowing properties froths such coalescence. Inserts were included column represent crowder designs industrial cells. Three chosen effect insert depth shape, including rectangles triangle. design on is obvious visual assessment distribution, closely agreed both experiment model.