The effect of non-uniform mass loading on the linear, temporal development of particle-laden shear layers

摘要: The effect of non-uniformity in bulk particle mass loading on the linear development a particle-laden shear layer is analyzed by means stochastic Eulerian-Eulerian model. From set governing equations two-fluid model, modified Rayleigh equation derived that governs growth spatially periodic disturbance. Eigenvalues for this are determined numerically using proper conditions at co-flowing gas and interface locations. For first time, it shown non-uniform small-inertia particles (Stokes number (St) <0.2) may destabilize inviscid mixing as compared to pure-gas flow. destabilization triggered an energy transfer rate globally flows from phase phase. intermediate St (1 < 10), maximum stabilizing computed, while larger St, two unstable modes coexist. computations stability analysis verified through simulations based Eulerian-Lagrangian (EL) model Euler point rates found numerical experiments EL method very good agreement with validate destabilizing induced presence low St.