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A direct numerical simulation of particle dispersion in particle-laden swirling jets issued into a rectangular container through a round nozzle is carried out. The swirl number is S=1.42 when the bubble vortex breakdown takes place. Two cases are simulated for comparison, i.e. five types of particles with Stokes numbers St=0.01, 0.1, 1, 10 and 100 respectively under the same flow rate, and four types...
Combined multi-direct forcing technique and the immersed boundary method is applied to investigate the response of force behaviors of a fixed spherical particle to an oscillating flow. The influences of the inlet oscillating flow at a mean Reynolds number of 300 with six different oscillating frequencies and three oscillating amplitudes are investigated. Three different zones with different behaviors...
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