Effect of particle arrangement and density on aerodynamic interference between twin particles interacting with a plane shock wave

Unsteady drag, unsteady lift, and movement of one or two moving particles caused by the passage a planar shock wave are investigated using particle-resolved simulations viscous flows. The particle motion analysis is carried out based on for under Mach number 1.22 Reynolds 49, migration fluid forces investigated. behavior different densities configurations. time evolution drag lift changed interference wave, stem convergence, reflected from other particle. These become closer after passes than in initial state most conditions. Two placed an in-line arrangement approach each very closely due to wave. On hand, side-by-side only slightly between them. pressure waves resulting convergence upstream downstream main factors responsible force direction that pushes apart. wide distance attenuates these waves, reduce their away other.