Numerical Simulation of Air Entrainment Performance of a Foam Generator Used for Dust Control in Coal Mines

Schematic diagram of boundary conditions setting:  <svg height="6.25863pt" id="M16" style="vertical-align:-0.1933298pt" version="1.1" viewbox="-0.0498162 -6.0653 7.72009 6.25863" width="7.72009pt" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M563 442L553 454L479 439C463 404 440 354 416 322H414C389 422 344 454 283 454C151 454 21 310 21 162C21 48 73 -12 135 -12C182 -12 249 19 325 126H327C339 20 368 -12 407 -12C452 -12 507 21 557 110L530 136C508 107 493 92 480 92C462 92 453 123 430 253C459 292 528 386 563 442ZM318 186C290 133 235 76 202 76C175 76 154 108 154 184C154 275 198 406 247 406C288 406 313 294 318 186Z"></path></g></svg> contraction angle of suction chamber;  Lm length of throat;  dm diameter of throat;  Ltn throat-nozzle distance.

Mathematical Problems in Engineering

fig1

Figure 1

Figure 1: Numerical Simulation of Air Entrainment Performance of a Foam Generator Used for Dust Control in Coal Mines 