Investigation of Electrical Impedance Imaging Relative to Two-Phase, Gas-Liquid Flows

The determination of interfacial area density in two-phase, gas-liquid flows is one of the major elements impeding significant development of predictive tools based on the two-fluid model. Currently, these models require coupling of liquid and vapor at interfaces using constitutive equations which do not exist in any but the most rudimentary form. Work described herein represents the progress towards the development of electrical impedance imaging (EII), sometimes called electrical impedance computed tomography (EICT) which may ultimately be utilized for nonintrusive determination of interfacial structure and evolution in such flows.