ChEMS Department Seminar

Event Date/Time: 
November 15, 2018 - 9:10am
Event Location: 
3540 EB
Speaker: 
Xiaolong Yin
Direct Numerical Simulation of Fluid Flow and Transport in Porous Media

Abstract

Direct numerical simulation (DNS) of fluid flow and transport has already become a very useful research tool to explore the details of complex flows such as those encountered in porous media. In this presentation, I will present DNS work conducted in my research group, including simulation of single-phase flows, multiphase flows, and transport using lattice Boltzmann (LB) method. Using LB simulation as a tool, the correlation between porosity and permeability, two fundamental properties of rocks, is characterized. It is found that idealized porous media geometries of different conformations have identical porosity-permeability correlations, if the specific surface area is used as the length scale to non-dimensionalize permeability. Fractures and vugs tend to change porosity-permeability relation in opposite directions. The effect of surface slip in tight rocks and the effect of inertia in fast flows through highly permeability media can also be studied using LB simulations. In the end, I will present examples of simulations of multiphase flows in porous media and in narrow fractures and perspective on using neural network to predict permeability.

Bio

Xiaolong Yin is an associate professor in the Petroleum Engineering Department at Colorado School of Mines. Xiaolong Yin received BS in Theoretical and Applied Mechanics from Peking University, MS in Mechanical Engineering from Lehigh University, and PhD in Chemical Engineering from Cornell University. He conducted postdoctoral research in Chemical Engineering at Princeton University before he joined Colorado School of Mines in 2009. Xiaolong Yin’s research area is in computational and experimental fluid dynamics and phase behavior. He is a member of the SPE (Society of Petroleum Engineering) Reservoir Dynamics and Description Advisory Committee.