Zwietering's Equation for the Suspension of Porous Particles and the Use of Curved Blade Impellers

Table 2

(a) Average 𝑆 values (present work)

	𝑆
Impeller	1.40–2.36 mm	1.00–1.40 mm	0.75–1.00 mm
6CB	4.82	4.91	5.31
6DT	4.50	4.77	5.05
6MFD	3.48	3.75	3.98

(b) The literature 𝑆 values [17]

			𝑆
Impeller	𝐷/𝑇	𝐶/𝑇	BLGB (𝑑𝑝 = 0.6–0.71 mm)	Bronze shot  (𝑑𝑝 = 0.5–0.6 mm)
6DT	0.33	0.17	5.12	5.72
		0.25	7.33	6.58
		0.33	8.37
6MFD	0.33	0.25	3.94	4.03