«Automation and Informatization of the fuel and energy complex»

Development of methods of network hydrodynamics as applied to two-phase flows of immiscible liquids

UDC: 532.5-1/-9+622.276
DOI: 10.33285/2782-604X-2023-10(603)-70-74

Authors:

¹ Siberian Federal University, Krasnoyarsk, Russia

Keywords: hydraulic circuit theory, mathematical model validation, microfluidic chips, porous-network model

Annotation:

The article presents the results of validation of a mathematical model designed for calculating two-phase flows of immiscible liquids. The results were verified through an experiment conducted on a microfluidic chip with a regular lattice of microchannels. The mathematical model is based on the method of hydraulic circuit theory, adapted for modeling the porous-network medium. This approach, as compared with computational fluid dynamics methods, provides a significant benefit in terms of computational costs. The verification was carried out by comparing the dynamics of the movement of the displacing fluid front in the computational model and in the experiment. A comparison of the experiments results and calculations showed that the model qualitatively and quantitatively describes the experiment at a satisfactory level. The performance and quantitative stability of the mathematical model was tested using a series of methodological calculations in which the properties of a two-phase medium were varying.

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