Simulation of fluid flow in the pore space of the core obtained by x-ray microtomography

This paper considers the results of numerical simulation of fluid flow. The computational domain represented the three-dimensional pore space obtained from processing digital images of X-ray microtomography. The model of the laminar fluid flow was used in calculations and described by the continuity and Navier–Stokes equations. The numerical simulation was conducted using the FlowVision software for stationary flow and for the flow with superimposed pressure pulsations. Velocity and pressure fields were obtained as a result of calculations. It was found that superimposed oscillations lead to additional directed flow occurrence with average characteristics depending on parameters of superimposed unsteadiness.