Vortex 2025 Tentative Agenda (Dec 13-16, 2025)

Short Course (Dec 13-14, 2025)

Day one Tentative Agenda (Saturday, Dec 13, 2025)
TimeSessions/TopicsLecturer
8:00 amBus pickup at the hotel (Crowne Plaza Arlington Hotel)
8:30 – 10:00 amThree generations of vortex definition and identificationChaoqun Liu
10:00 – 10:30 amGroup Photo and Coffee Break
10:30 – 12:00 noonLiutex definition: Local rotation and global rotationChaoqun Liu
12:00 – 1:30 pmLunch
1:30 – 3:00 pmLiutex and third generation of vortex identification methods and its applicationsChaoqun Liu
3:00 – 3:30 pmCoffee Break
3:30 – 5:00 pmTriple decomposition of velocity gradient tensor and new Liutex-based fluid kinematicsChaoqun Liu
5:00 pmBus pickup at SEIR Building in UTA
Day two Tentative Agenda (Sunday, Dec 14, 2025)
TimeSessions/TopicsLecturer
8:00 amBus Pickup at the Hotel
8:30 – 10:00 amLiutex-based vortex identification methodsYifei Yu
10:00 – 10:30 amCoffee Break
10:30 – 12:00 noonLiutex-similarity in turbulent boundary layers, vortex and resistance, matrix form of fluid dynamicsChenxi Ma
12:00 – 1:30 pmLunch
1:30 – 3:00 pmLiutex-based Subgrid models for LESJiawei Chen
3:00 – 3:30 pmCoffee Break
3:30 – 5:00 pmLiutex code release and practiceOscar Alvarez
5:00 pmBus pickup at SEIR Building in UTA

Conference (Dec 15-16, 2025)

Day one Conference Tentative Agenda
TimeSpeaker’s Name & InstituteTitle
8:00 amBus pickup at the hotel
8:30 amKate Miller, UTA Vice Present of ResearchWelcome Speech
8:50 amGroup Photo
A. Vortex Theories
Session Chair: Oskar Steiner
9:00 amChaoqun Liu
University of Texas at Arlington, Texas, USA, cliu@uta.edu 		Progress in Liutex Theory, Methods and Applications.
9:30 amFazle Hussain – Invited
Texas Tech University, USA
Fazle.Hussain@ttu.edu		Vortex dynamics in various flow
phenomena.
10:00 amYifei Yu and Chaoqun Liu
University of Texas at Arlington, Texas, USA
yifei.yu@uta.edu		An Innovative Sub-Grid Model
by Liutex and Unresolved
Convection Prediction.
10:30 amCoffee Break
Session Chair: Xi Li
11:00 amJakub Sistek – Invited
Institute of Mathematics of the Czech Academy
of Sciences, Czechia.
sistek@math.cas.cz		Two complementary eigen- based geometric properties of
a vortex.
11:30 am Philips Ligrani – Invited
University of Alabama in Huntsville, Huntsville,
Alabama, USA.
pml0006@uah.edu;		Vortex Development and
Quantification Within Complex
Mechanical and Aerospace
Engineering Flow Environments.
12:00 pmBREAK
Session Chair: Jakub Sistek
1:00 pmKatsuyuki Nakayama
Department of Mechanical Engineering, Aichi Institute
of Technology, Japan.
nakayama@aitech.ac.jp		A Foundational Asymmetric
Vortex Model Based on Local
Flow Geometry and Interaction
with Bundle of Vorticity Lines.
1:30 pm Hongyi Xu, Yifan Wang, Yang Liu, Chenchen Zhao, Duo Wang, Shuaichen Zhu, Chongbin Ma,
Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China;
hongyi_xu@fudan.edu.cn		Important Fluid Mechanics
Research Progresses Built Upon
the Comprehensive Wall-
Turbulence DNS Big Data and Liutex Theory.
B. Vortex Identification Methods
2:00 pmOskar Steiner – Invited
Istituto ricerche solari Aldo e Cele Daccó, Switzerland. oskar.steiner@irsol.usi.ch		Vortices and Application of the
Liutex in Solar and stellar
Atmospheres.
2:30 pmYifei Yu, Oscar Alvarez, Chenxi Ma, Chaoqun Liu
University of Texas at Arlington, Arlington, TX, USA
oscar.alvarez@uta.edu		Advancements in Liutex-Based
Vortex Identification: Core Lines
and Objectivity.
3:00 pmCoffee Break
Session Chair: Hongyi Xu
3:30 pmMarek Pátý 1, Sergio Lavagnoli 2
1. Institute of Mathematics, Czech Academy of
Sciences
2. Turbomachinery and Propulsion Department, von Karman Institute for Fluid Dynamics,
paty@math.cas.cz;		Vortex Region, Core-Line and
Strength Characterization Based
on Residual Vorticity.
4:00 pm Li Xi – Invited
McMaster University Hamilton, Ontario, Canada.
xili@mcmaster.ca;		Automated Vortex Analysis
through Axis-line Extraction
Using the VATIP Algorithm.
4:30 pmEdgardo García (- Invited ) and Fazle Hussain
Texas Tech University, USA,
Edgardo.Garcia@ttu.edu		Transfer entropy insights into
vortical structure dynamics in
wall turbulence with pressure
gradients, roughness and heat
transfer.
5:00 pmBus Pickup at SEIR Building
7:30 pm Committee Meeting
Day two Conference Tentative Agenda
TimeSpeaker’s Name & InstituteTitle
8:00 amBus pickup at the hotel
C. Experiment
Session Chair: Kostas Tziotziou
8:30 amFulvio Scarano – Invited
Delft University of Technology, Netherlands.
f.scarano@tudelft.nl		4D-measurements in vortex
dominated flows at varying
scales.
9:00 amÁmbar Garófano Soldado – Invited
Delft University of Technology, Netherlands.
a.garofanosoldado@tudelft.nl		Multi-scale vortex detection for
vortex Ring State
characterization.
D. Theory, Methods and Applications
9:30 amYasuhide Fukumoto 1,2, and Yusaku Asao3
1 Institute of Mathematics for Industry, Kyushu
University, Japan
2 Osaka Central Advanced Mathematical Institute,
Japan
3 Graduate School of Mathematics, Kyushu
University, Japan
yasuhide@imi.kyushu-u.ac.jp		Vorticity and Cross Helicity of
Relativistic Non-Isentropic
Magnetohydrodynamics.
10:00 amYifei Yu and Maryam Sangi
Campus Tour and Coffee Break
10:30 amKostas Tziotziou – Invited
IAASARS, National Observatory of Athens, Greece.
kostas@noa.gr		Dynamics and detection of
vortices on the Sun.
11:00 am Sandra Rugonyi – Invited
Oregon Health & Science University Portland, USA.
rugonyis@ohsu.edu		Cardiac vortex formation in
health and disease.
11:30 amSim Aberson – Invited
NOAA/Atlantic Oceanographic and Meteorological
Laboratory, Florida, USA
sim.aberson@noaa.gov		Vortices in the Development
and Maintenance of Tropical
Cyclone.
12:00 pmBREAK
1:00 pmYonghua Yan – Invited
Jackson State University, Jackson, USA
Yonghua.yan@jsums.edu		Liutex and machine learning base 3D flow
prediction.
Session Chair: Fulvio Scarano
1:30 pmMaryam Sangi
Yifei Yu, Oscar Alvarez, Chenxi Ma,
Chaoqun Liu.
mns8903@mavs.uta.edu;		A novel Sub-Grid model with anisotropic
eddy viscosity based on Liutex vector.
2:00 pmOnur Mutlu 1, Oscar Alvarez 2, Maryam
Sangi 2, Theodore P. Abraham 3, Yifei Yu
2, Chaoqun Liu 2, Sandra Rugonyi 1
Oregon Health & Science University,
Portland, USA.2. University of Texas at
Arlington, Arlington, USA
University of California, San Francisco,
USA.
mutlu@ohsu.edu;		Coupled Fluid-Structure Interaction and
Liutex-Based Vortex Core Analysis for the
Hemodynamic Assessment of
Hypertrophic Cardiomyopathy.
2:30 pmChenxi Ma; Chaoqun Liu
University of Texas at Arlington, Texas,
USA.
cxm0091@mavs.uta.edu;		Liutex Dynamics based on Matrix
Governing Equation for Incompressible
Flow.
3:00 pmCoffee Break
3:30 pmE. Pannel Discussion
Session Chair: Sandra Rugonyi
5:00 pmBus Pickup at SEIR Building
Day three Conference Tentative Agenda
TimeSpeaker’s Name & InstituteTitle
Session Chair: Maryam Sangi
7:30 amVoropaiev G.A., Zagumennyi Ya.V., Baskova
A.A.Institute of Hydromechanics NAS of
Ukraine voropaiev.gena@gmail.com;		The emergence of a vortex structure
in the boundary layer during the
transition to turbulence.
8:00 amYiqian Wang.
School of Mathematical Sciences, Soochow
University, China yiqian@suda.edu.cn;		Subgrid-Scale Modeling for Large Eddy
Simulation Based on Vortex Identification
Methods and Its Applications.
8:30 amKazuo Matsuura
Faculty of Informatics, Matsuyama University,
Japan. kazuo.matsuura@g.matsuyama-u.ac.jp;		Combination of the Hierarchical Vortex
Clustering Method with Liutex and Its
Application to Compressible Boundary
Layers and Jets.
9:00 amDecheng Wan
Shanghai Jiao Tong University, China
dcwan@sjtu.edu.cn;		Liutex Vortex Identification Method
for Analysis of Flow Structure in
Marine Hydrodynamics.
9:30 amYevhenii Shkvar1,2
1.College of Engineering, Zhejiang Normal
University, China. 2. Institute of
Hydromechanics of the National Academy of
Sciences of Ukraine, Ukraine.
shkvar.eugene@qq.com, eush@ukr.net;		Comparative Analysis of Turbulent
Flow Control Using Leading-Edge
Vortex Generators and Large Eddy
Breakup Devices.

VORTEX2025 – International Conference on Vortex Definition and Prediction Sponsored by

The US National Science Foundation and University of Texas at Arlington