报告题目：Corner singularity, mathematical modellings and Pohang earthquake

报告人：Jae Ryong Kweon，韩国浦项科技大学

报告时间：2025年12月11日（周四）14:30

报告地点：20-404

报告摘要：Geothermal energy production requires a high permeability heat exchange from deep hot rocks. The typical procedure locates naturally pre-existing discontinuities, such as faults and joints, and enhances heat permeability by means of hydraulic stimulation. This is a basic scenario for Enhanced Geothermal System(EGS).

In this lecture I will talk about mathematical modelling equations for Thermal Variations between fracture and rock zones due to the water injection in the enhanced geothermal system(EGS). As a mechanical reason for Pohang Earthquake I emphasize that thermalelastics is an essential ingredient in causing such large magnitude of stress, because Pohang Earthquake occurred two months later after Pohang EGS stops water injection.

Also I will give interface corner singularity functions from the interface and boundary value problem and discuss about increased regularity for smoother part. I will also talk about the stress variations related to the compressible Navier-Stokes flows on the polygonal domains with inflow and outflow conditions.

报告人简介：Jae Ryong Kweon教授任职于韩国浦项科技大学，主要专注于数值分析、偏微分方程及流体力学领域的研究。他对可压缩Navier-Stokes方程与Stokes方程的相关研究尤为深入，针对有界多边形及非光滑边界区域上方程解的正则性问题，取得了一系列具有重要影响力的学术成果。这些研究成果已在《Archive for Rational Mechanics and Analysis》、《J. Math. Pures Appl. 》、《Comm. Partial Differential Equations 》、《SIAM J. Math. Anal.》、《SIAM J. Numer. Anal.》、《Ann. Henri Poincaré》等国际权威SCI数学期刊发表，累计产出高质量学术论文50余篇。2005年，Kweon教授的研究成果入选 “韩国50项杰出研究成果”，获得了领域内专家的广泛关注与高度认可。

邀请人：无穷维动力系统和偏微分方程研究所