Long-Distance Foam Propagation
G. Yu (TU Delft - Reservoir Engineering)
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Abstract
Creating a gas-liquid foam means dispersing gas as individual bubbles in an aqueous solution, in which each gas bubble is separated by liquid films or lamella. The most common form of liquid foam (as opposed to solid foams, like polymer sponges) seen in day-to-day life is bulk foam. This refers to a foam that rests in a large container (or flows in a free open space) that has a volume considerably larger than the bubble size. Foam in a porous medium, however, resides and flows in a network of narrow pore spaces. The behaviour of foam is therefore complicated by many complex capillary phenomena...