报告人：Prof. Yuefeng Sun 孙跃峰, Texas A&M University
时间: 2:30 pm-4:30 pm, July. 13, 2016
地点: 物理机电航空大楼438会议室
摘要: This talk is to outline the fundamental problems in formulating the basic equations governing the electrodynamics and mechanics of fractured porous media. First, topological characterization of a fractured porous medium is discussed with new concepts like structural connectivity tensor being introduced. Second, a covariant formulation of the mechanics of fractured porous media based on the concept of space-time continuum is briefly presented. General covariant balance laws based on the first principle of energy is then favored over the space-time formulism. Effective and interacting field equations are given. Compatibility equations and structural stability of a fractured porous medium are then derived. Special theories are discussed governing wave propagation and fluid flows in fractured porous media. The fundamental choice of electric and magnetic fields versus gauge fields when being coupling with mechanical wave fields is addressed.
报告人简介: Dr. Yuefeng Sun is Mollie B. and Ricard A. Williford professor in the Department of Geology and Geophysics of Texas A&M University, College Station, USA. His research interests include rock physics, poroelasticity, mechanics and electrodynamics of multiphase fractured porous media, reservoir geophysics, petroleum geology, biogeophysics and advanced energy research. He is the Director of the TAMU Reservoir Geophysics Program with research focus on integrating geology, rock physics, geophysics, and reservoir simulation for energy exploration and production. He received in 1994 a Ph.D. degree from Columbia University. He has been Doherty research scientist at the Lamont-Doherty Earth Observatory of Columbia University among other various positions. He serves on the editorial board of the Journal of Computational Acoustics. He has published numerous articles and patents. He is a member of SEG, AAPG, and AGU.
