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OFM: Fine-tuned size distribution

Size and size distribution control using OFM: Research on multiphase systems (liquid-liquid and gas-liquid) have shown that both the size and size distribution of droplets (Figure 1) and bubbles (Figure 2) can be fine-tuned by changing the fluid oscillations conditions.

Liquid-liquid dispersion

Dispersion of silicon oil droplets in water

(a)

Droplet size distribution in silicon oil-water mixtures

(b)

Figure 1 - (a) Dispersion of silicon oil droplets in water, at f = 6 Hz, x0 = 3 mm; (b) Droplet size distribution in silicon oil-water mixtures (2.5% v/v) in a vertical, batch mesoreactor at a constant x0 = 2 mm.

 

 Gas - liquid dispersion

Dispersion of air in water

(a)

Bubble size distribution in mesoreactor

(b)

Figure 2 - (a) Dispersion of air-water, at f = 10 Hz, x0 = 3 mm; (b) Bubble size distribution in a vertical, batch 350 mm long meso-reactor for f = 15 Hz and increasing x0


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