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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A decoupled, linear, and unconditionally energy stable finite element method for a two-phase ferrohydrodynamics model
两相铁 流体动力学模型 无条件能量稳定 有限元方法
2023/4/28
In this talk, we present numerical approximations of a phase-field model for two-phase ferrofluids, which consists of the Navier-Stokes equations, the Cahn-Hilliard equation, the magnetostatic equatio...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Some progress on steady Navier-Stokes system in a channel
通道 稳定 纳维-斯托克斯系统
2023/4/27
In this talk, we will discuss some recent progress on steady Navier-Stokes system in a channel, in particular, the problem posed by Leray on steady flows in channels. The existence and uniqueness of s...
为搭建摩擦学领域高水平学术交流与合作平台，促进我国摩擦学科学、工程及技术的发展，中国机械工程学会摩擦学分会定于2022年12月17日召开中国机械工程学会摩擦学分会2022年学术年会（线上）。会议将围绕摩擦学科学技术前沿、基础科研、关键技术研究及工业应用，邀请有关专家学者做学术报告，分享相关创新研究进展。诚邀业界专家学者出席会议。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
分层主导 三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
第十六届全国动力学与控制青年学者学术研讨会在北海成功召开（图）
动力学 学术研讨会 中国力学学会
2023/11/9
2022年11月25至27日，由国家自然科学基金委员会数理科学部和中国力学学会动力学与控制专业委员会联合主办，在广西壮族自治区科学技术协会和广西力学学会的指导下，由广西大学承办，动力学与控制学报、广西科技大学和湖南科技大学协办的第十六届全国动力学与控制青年学者学术研讨会在北海成功召开。本次盛会吸引了动力学与控制学科相关的200余位专家学者开展线下/线上交流，邀请了20余位资深专家和40余位优秀青年...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：基于临界理论的复杂制造系统风险传播预警和控制
临界理论 复杂制造 系统风险 传播预警 控制
2023/5/5
复杂制造系统在生产过程中存在诸多的内外部风险。作为一个对初始条件极为敏感的混沌系统，即便是微小的风险，随着生产制造过程的推进，这些风险也会不断被传递、累计、放大，最终将极大拖延生产进度，或者是系统制造生产稳定性下降，严重时甚至造成整个复杂制造系统生产的混乱和中断。通过针对典型的复杂制造系统仿真数据，引入神经网络学习机制，建模系统风险因子与模型；基于熵理论和临界慢化理论完成复杂制造系统临界态物理指标...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：ANALYSIS AND APPROXIMATION OF FLUIDS UNDER SINGULAR FORCING
奇异强迫体 分析 近似 牛顿流体
2023/5/5
Motivated by applications, like modeling of thin structures immersed in a fluid, we develop a well posedness theory for Newtonian and some non-Newtonian fluids under singular forcing in Lipschitz doma...
第一届全国能源转化储存与CCUS渗流会议暨湖北省第四届渗流力学前沿论坛于2022年11月26日以在线直播的形式成功召开。会议由中国力学学会流体力学专业委员会渗流力学专业组、湖北省岩石力学与工程学会主办，中国科学院武汉岩土力学研究所、中国科学院力学研究所、MDPI和中国岩石力学与工程学会低碳能源岩石力学与工程专业委员会承办，中国石油勘探开发研究院、中盐盐穴综合利用股份有限公司、湖北省力学学会协办。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Introduction to Peridynamics model and a POD-based fast algorithm for the nonlocal unsteady problems
近场动力学模型 POD 非局部 非定常问题 快速算法
2023/5/6
A brief introduction to Peridynamics model and a fast algorithm for the nonlocal unsteady problems is given in this talk. The POD algorithm can be employed in the numerical simulation of nonlocal diff...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：可压缩Navier-Stokes方程Riemann解的稳定性
可压缩 Navier-Stokes方程 Riemann解 稳定性
2023/5/6
可压缩Navier-Stokes方程描述可压缩粘性流体运动的力学规律，是流体力学中的基本方程。如果忽略粘性效应，可压缩Navier-Stokes方程即为无粘的可压缩Euler方程。可压缩Euler方程描述理想流体的运动，是典型的双曲守恒律方程组，其主要特点是：无论初值多么光滑和多么小，解都可能会爆破，形成间断（激波）。如果考虑可压缩Euler方程的Riemann问题，其解具有三种基本波：激波、稀疏...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Hidden structures behinds the compressible Navier-Stokes equations and its applications to the corresponding models
可压缩 纳维-斯托克斯方程 隐藏结构 相应模型应用
2023/5/6
In this talk, we will review the past developments on the solutions of the compressible Navier-Stokes equations and reveal the three hidden structures which linked the weak solution to the strong one....
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Existence of phase transition for percolation using the Gaussian Free Field
高斯自由 伯努利渗透 相变存在
2023/5/8
In this talk, we prove that Bernoulli percolation on graph undergoes a non-trivial phase transition if the graph has bounded degrees and random walk on the graph has a heat kernel with rapid decay. Th...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：From Marc Yor to Brownian loop-soups
马克约尔 布朗循环汤 loop-soups
2023/5/8
We will survey aspects of Brownian loop-soups, which provide a higher-dimensional incarnation of some ideas present Marc Yor's works.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The Application of Continuous Adjoint Method for Shape Optimization in Navier-Stokes Flow
连续伴随法 纳维-斯托克斯流 形状优化
2023/5/8
In this work, the shape optimization problem of a solid immersed in the incompressible fluid governed by Navier-Stokes equations is considered. Based on the continuous adjoint method, the shape gradie...