Study of Behaviors of Single Large Intruders in Bulk Flow

effects of intruder particles. Fig2 to Fig4 all exhibit the trend that the average rising velocity is decreasing as density ratio increases. It is reasonable because with density ratio increasing, the effects of density segregation become weaker so that the vertical velocity will be getting smaller. A linear trendline fits each group of data extremely well indicating that the average vertical velocities are actually decreasing linearly: In Fig2: for 25 mm intruders filling height at 40 mm: y = -0.961x + 0.876 (1) For 25 mm intruders filling height at 50 mm y = -0.6282x + 0.5894 (2) In fig 3: for 20 mm intruders filling height at 45 mm: y = -0.6616x + 0.6299 (3) For 20 mm intruders filling height at 50 mm: y = -0.5729x + 0.5323 (4) Study of Behaviors of Single Large Intruders in Bulk Flow