Lattice Boltzmann simulations of flow inside a converging and diverging nozzle with the insertion of single and multiple circular cylinders

The present study delivers several numerical experiments, conducted on a converging–diverging horizontal nozzle with the insertion of single and multiple circular cylinders. fluid enters from inlet wall, strikes nozzle's cylinder's walls times, affecting entire flow region, and, finally, leaves through outlet wall. This process leads to many new unseen things. lattice Boltzmann method relaxation time scheme is adopted for all experiments. physical parameters that are investigated in Reinlet, Recylinder, drag lift coefficients, Mach number (Ma), pressure difference(Δp). It found position cylinder affects transition zone between steady state an unsteady state. For every different position, observed. In case presence cylinders, effect counts net zone. Moreover, variation coefficients difference represented throughout study.