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Schematic concept of the microfluidic device for investigation of the temperature dependency of the droplet formation process.
Normalized viscosity and interfacial tension of the carrier fluid as function of temperature difference. The interfacial tension and the viscosity are normalized by their nominal values at , , and . The solid lines are the exponential fitting curves.
Typical droplet formation process: (a) heater off and (b) heater on.
Normalized droplet diameters as functions of temperature. The droplet diameters are normalized by their nominal values at . The initial droplet diameters for flow rate ratios of 300:50:300 and 400:100:400 are 39.6 and , respectively. The solid lines serve as eye guides.
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