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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Steady Subsonic flows in High Dimensional Nozzle
高维喷管 稳态 亚音速流动
2023/11/15
In this talk, we present our result on subsonic irrotational flows in a multi-dimensional (n>1) infinitely long nozzle with variable cross sections. The flow is described by the inviscid potential equ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Lyapunov stable classes for Singular Flows
奇异流 李雅普诺夫 稳定类
2023/4/18
In this talk, I will show that (nontrivial) Lyapunov stable classes of vector fields far from homoclinic tangencies contain periodic orbits. This gives a partial answer for the Palis Weak Density Conj...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Nonlinear Stability of Shear Flows and Rotating Flows in Fluid Dynamics
流体动力学 剪切流 旋转流 非线性稳定性
2023/4/25
Hydrodynamic stability at high Reynolds number is a central topic in fluid mechanics. It is closely related to turbulence. Whereas the laminar velocity profile is linearly stable for all Reynolds numb...
Stabilizing multilayer flows may improve transportation of heavy oils
Stabilizing multilaye heavy oils transportation
2019/10/10
During the past 20 years, the oil industry has begun a gradual transition away from light oils, which are being consumed progressively, toward heavier oils. But transporting heavy oils cost-effectivel...
中国地质大学科学技术发展院万灵,王涛数理学院 Nonlinear Analysis: Real World Applications, FEB 2018. Asymptotic behavior for cylindrically symmetric nonbarotropic flows in exterior domains with large data
外区域；中大；初值柱；对称流；渐近行为
2021/10/21
2018年2月，有关“外区域中大初值柱对称流的渐近行为”的研究成果将刊发在非线性分析领域国际重要期刊《Nonlinear Analysis: Real World Applications》上。该文第一作者为中国地质大学数理学院特任副教授万灵博士。
IUTAM Symposium on Computational modelling of instabilities and turbulence in separated two-phase flows
IUTAM Seminar Calculation model Unstable Turbulent separation Two phase flow
2017/12/13
IUTAM Symposium on Computational modelling of instabilities and turbulence in separated two-phase flows.
IUTAM Symposium on Viscoplastic flows: from theory to application
IUTAM Seminar Viscoplastic flow Theory The application
2017/12/13
IUTAM Symposium on Viscoplastic flows: from theory to application
MIGRATE: A FOSS WEB MAPPING APPLICATION FOR EDUCATING AND RAISING AWARENESS ABOUT MIGRATION FLOWS IN EUROPE
Web mapping Open Source Open Data FOSS Crowd-generated data Human migration
2017/8/10
Recent years have seen a noticeable growth in migration flows from Africa and Middle East to Southern Europe, thus generating a remarkable increase of attention on media and public opinion, sometimes ...
MEASURING POLYCENTRICITY OF MEGA-CITY REGIONS IN CHINA BASED ON THE INTERCITY MIGRATION FLOWS
Migration Flows Mega-city Region Polycentricity Chinese City Social Media Data
2016/11/15
This paper uses the intercity migration flows to examine relations between Chinese cities, identify the important mega-city regions and measure each region's polycentricity from an interaction perspec...
INVESTIGATING THE POTENTIAL OF ACTIVITY TRACKING APP DATA TO ESTIMATE CYCLE FLOWS IN URBAN AREAS
Transport Cycling Mobility
2016/7/8
Traffic congestion and its associated environmental effects pose a significant problem for large cities. Consequently, promoting and investing in green travel modes such as cycling is high on the agen...
Interactively Verifying Absence of Explicit Information Flows in Android Apps
interactive verification abductive inference specifications from tests
2016/5/24
App stores are increasingly the preferred mechanism for distributing software, including mobile apps (Google Play),desktop apps (Mac App Store and Ubuntu Software Center),computer games (the Steam Sto...
Optimal routes and flows in congestion constrained ad hoc networks
Network streaming media video voice data Internet function
2015/8/11
Future ad hoc and multi-hop networks will simultaneously support many different types of traffic such as streaming video, voice, and data. This is particularly true for emerging 802.11, bluetooth, or ...
Studies of Wings Supporting Non-unique Solutions in Transonic Flows
Wings Supporting Non-unique Solutions Transonic Flows
2015/7/6
Non-unique numerical solutions of transonic flows over airfoils have been found, first for potential flow equation, and later for Euler and RANS equations. The studies have also been...
Airfoils Supporting Non-unique Transonic Solutions for Unsteady Viscous Flows
Airfoils Supporting Non-unique Transonic Solutions Unsteady Viscous Flows
2015/7/6
Non-unique numerical solutions of transonic flows have been found, first for potential flow equation, and later for Euler and RANS equations. The studies conducted so far have been m...
Combined Feature-Driven Richardson-Based Adaptive Mesh Refinement for Unsteady Vortical Flows
Combined Feature-Driven Richardson-Based Adaptive Mesh Unsteady Vortical Flows
2015/7/3
An adaptive mesh refinement strategy that couples feature detection with local error estimation is presented. The strategyfirst selects vortical regions for refinement using feature ...