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2015/12/08 14:00 Assistant Prof. Chia-Chieh Jay Chu（Department of Mathematics, NTHU）
Seminar
Poster： ╱ Post date：2015-12-01NCU IHOS Seminar Announcemnet
Speaker：Assistant Prof. Chia-Chieh Jay Chu
Place：S-325, Science Building 1
Abstract：
Title：A multiscale method to couple network models and continuous equations for two-phase flow in porous media
Speaker：Assistant Prof. Chia-Chieh Jay Chu
Department of Mathematics, NTHU
Time：12/08（Tue.）14：00
Place：S-325, Science Building 1
Abstract：
In this talk, we present a numerical multiscale method for coupling a conservation law for mass at the continuum scale with a discrete network model that describes the pore scale flow in a porous medium. We introduce the dynamical network model that describes two-phase flows in pore scale. We developed single-phase flow algorithms and extended the methods to two-phase flow. Our coupling method for the pressure equation uses local simulations on small sampled network domains at the pore scale to evaluate the continuum equation and thus solve for the pressure in the domain. For local simulation, it often requires a suitable initialization. We introduce a choice of initialization from a optimization problem, which is often used in image processing. We present numerical results for single-phase flows with nonlinear flux- pressure dependence, as well as two-phase flow.
Last modification time：2015-12-04 PM 3:25
