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Capillary Number - Christopher Sparages: Difference between revisions
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===Bubble Suspension=== | ===Bubble Suspension=== | ||
As mentioned above the capillary number is a representation of forces between two immiscible liquids (gas or liquid). In the case of bubble suspension, the interaction is between a liquid and gas. A large reason for studies conducted with bubble suspension is to learn more about to develop models, characterize, and control the flow of the respective gas. In order to achieve these goals, rheology tests are conducted while values for viscosity, velocity, and surface tension are taken see how capillary number effects the behavior of this bubbling. Comparing the bubble viscosity to the capillary number, results can be seen that with an increase in capillary number there is a sigmoidal response in the bubble viscosity (Figure 3).<ref name="three" /> | As mentioned above the capillary number is a representation of forces between two immiscible liquids (gas or liquid). In the case of bubble suspension, the interaction is between a liquid and gas. A large reason for studies conducted with bubble suspension is to learn more about to develop models, characterize, and control the flow of the respective gas.<ref name="nine">Ramakrishnan, T. S., & Wasan, D. T. (1986). The Relative Permeability Function for Two-Phase Flow in Porous Media: Effect of Capillary Number. Proceedings of SPE Enhanced Oil Recovery Symposium, 48(2). https://dx.doi.org/10.2523/12693-ms</ref> In order to achieve these goals, rheology tests are conducted while values for viscosity, velocity, and surface tension are taken see how capillary number effects the behavior of this bubbling. Comparing the bubble viscosity to the capillary number, results can be seen that with an increase in capillary number there is a sigmoidal response in the bubble viscosity (Figure 3).<ref name="three" /> | ||
===Chemical Flooding=== | ===Chemical Flooding=== | ||
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==References== | ==References== | ||
<ref name="ten">Jeong, S. (2005). Evaluation of the use of capillary numbers for quantifying the removal of DNAPL trapped in a porous medium by surfactant and surfactant foam floods. Journal of Colloid and Interface Science, 282(1), 182-187. https://dx.doi.org/10.1016/j.jcis.2004.08.108</ref> | <ref name="ten">Jeong, S. (2005). Evaluation of the use of capillary numbers for quantifying the removal of DNAPL trapped in a porous medium by surfactant and surfactant foam floods. Journal of Colloid and Interface Science, 282(1), 182-187. https://dx.doi.org/10.1016/j.jcis.2004.08.108</ref> | ||
