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2017 Chapter 2-gas-liquid-flow-student

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Chapter 2 Two-Phase Flow: Gas-Liquid Flow Two-phase flows are commonly found in industrial processes. The phase may be solid, liquid or gas. (1) Gas-liquid flow occurs in many systems, such as in ... boilers and evaporators and in many situations in the transmission of oil and gas mixtures. (2) Solid-liquid flow occurs during the flow of suspensions such as a river bed sediments and coalwater slurry. (3) Gas-solid flow occurs in a fluidised bed and in the pneumatic conveying of solid particles. For two-phase flow, the difference in density between the phases is important in determining flow pattern. Gas-liquid flow Flow direction: horizontal or vertical 2.1 Flow patterns In the case of horizontal flow in pipes, there are several flow patterns shown as belowCHEN3009 Fluid and Particle Processes Chapter 2 Gas-Liquid flow 2 1) Bubble or Froth flow In this pattern, bubbles of gas are distributed throughout the liquid. [Show More]

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