1- Human Heart Medicine Applications Based on CFD

Prof. Dr. Dean Vucinic, Belgium

Vesalius College (VeCo)
Vrije Universiteit Brussel (VUB)

Faculty of Electrical Engineering, Computer Science and Information Technology, University of Osijek, Croatia

Prof. Dr. Ir. Dean Vučinić, has joined Vesalius College (VeCo), which is affiliated to the Vrije Universiteit Brussel (VUB), as senior scientist and advisor in 2017. He has been affiliated to VUB since 1988. Before joining VeCo, he was guest professor and senior research scientist at the VUB Faculty of Engineering Sciences (IR) as member of two of its departments: Mechanical Engineering (MECH) and Electronics & Informatics (ETRO).

He is part-time associate professor at the Faculty of Electrical Engineering, Computer Science and Information Technology (FERIT), University of Osijek, holding the chair of Visual Computing.

His work is mostly related to Research and Development (R&D) projects, and his interest covers the topics of Scientific Visualization, Modelling and Simulation, Optimization methodologies and techniques, which are very often found together in solving complex problems within the multidisciplinary engineering and computer science domains.

His Ph.D. thesis became a book in 2010, ISBN 978-3-8383-3500-1. In the early 90's he developed "CFView - Computational Field Visualization System", the first-time-ever interactive visualization software adapted to numerical simulation solvers, completely based on the object-oriented technology, and fully implemented in C++. It has to be noted that VUB spin-off NUMECA is still using his software after more than 20 years, and in addition, more than 20 VUB PhD-s applied CFView in their visualization and data analysis tasks.

During almost 30 years at VUB, he successfully participated in more than 20 European projects under the European Frameworks, EUREKA/ITEA and Tempus educational programs.

He is author of more than 50 scientific papers in international reviewed journals and conference proceedings, and in addition, author of several book chapters.

He is member of International Advisory Boards and Scientific Committees of Journals and Conferences, acting as chair, session organizer, reviewer and editor of respective papers proceedings.

Due to his international presence, he is promoting and encouraging international cooperation in research and development, and education, just mentioning some of the realized initiatives with USA, Canada, Russia, Brazil, India and Japan, among others.

He is the European Commission expert in H2020 and member of international organizations as follows: AIAA, IEEE, ACM, SAE & ASME.

2- Repair and Maintenance of Density Profile in a Salinity Gradient Solar Pond

Prof. Dr. Aliakbar Akbarzadeh, Australia

Aliakbar Akbarzadeh received his Ph.D. in Mechanical Engineering from University of Wyoming in USA(1975).

He has worked as an academic at Pahlavi (Shiraz) University, University of Melbourne, UC Berkeley, and RMIT University in Melbourne Australia.

At present Aliakbar is a Professor in the School of Aerospace, Mechanical, and Manufacturing Engineering and also the Leader of the Energy Conservation and Renewable Energy Group.

He has been the first supervisor of about 40 PhD candidates to completion.

He has over 100 refereed publications and three books.

Aliakbar who is a thermodynamicist has been working for the last 30 years on salinity gradient solar ponds as a source of industrial process heat and at present his research team is world leader on industrial applications of solar ponds.

In the past 10 years he has been working on applications of thermoelectric generators for power generation from waste heat and renewable sources, as well as thermal energy storage systems .

3- From Cavitation to Bubble

My fundamental research work started from the cavitation phenomenon in hydraulic components, such as pump and valve.
The cavitationin hydraulic componentscausesmanyundesirable effects, for example noise, vibration and cavitation erosion.
I did experiments to know the relations between the component’s structural parameters and noise.
By high speed photography, I got the details how the cavitation evolves in hydraulic components. Some innovations were proposed and tested by experiments.
In order to prevent the cavitation, the structure of the hydraulic component became more and more complex.As we know, the cavitation inception is because of the expansion of nuclei in the fluid medium.
I investigated a special kind of nuclei “antibubble”, how to generate it, collapse it, and control its life.Also I studied how the air get into the liquid to form the bubble.
I found something interesting during the drop impact the liquid surface.

Prof. Dr. Jun Zou, China

09/1995..06/2000: B.S., Zhejiang University, Hangzhou, China.
9/2001..09/2006: Ph.D., Zhejiang University, Hangzhou, China.

Faculty Appointment::
12/2006..12/2008 Assistant Professor, Department of Mechanical engineering, Zhejiang University 01/2009..12/2013 Associate Professor, Department of Mechanical engineering, Zhejiang University
04/2012..05/2014 Visiting Professor, Department of Mechanical engineering, University of Minnesota at twin city, MN
01/2014..present Professor, Department of Mechanical engineering, Zhejiang University

Award and Honors:
09/2011 Distinguished Young Scholar of Zhejiang University.
01/2013 Excellent Youth Scholars of National Natural Science Foundation of China.
01/2015 Distinguished Young Scholars of Natural Science Foundation of Zhejiang Province.
01/2017 Changjiang Youth Scholars of the Ministry of Education of China.

Present Interests of Research:
● Bubble dynamics and Cavitation
● Droplets and jets
● Granular matter
● Soft robotics

4- Heat and Mass Transfer under Supersaturated Frosting Conditions

Field observations of the operation of industrial freezers indicate that many are improperly designed as evidenced by large amounts of snow-like formations on the freezer coil and on the walls and ceiling of the freezer itself.
These formations result from the presence of ice fog inside the freezer, which is tied to the presence of supersaturated air in the freezer.
This condition is more likely to exist at lower air temperatures since the moisture carrying capacity of the air is significantly reduced at those temperatures.
As the moisture level rises beyond the saturation amount, the excess moisture can only exist in the form of suspended liquid droplets or suspended ice crystals, depending on whether the temperature is above or below the freezing point of water, respectively.
The significance of the presence of air-borne ice crystals in the vicinity of cold surfaces is that they tend to deposit on those surfaces in a predominantly convection-driven process and at a pace commensurate with the amount and speed of the suspended particles.
This mechanism is usually coupled with a diffusion-driven mechanism due to the humidity ratio difference between the bulk air and the air in the vicinity of the cold surface.
Formations resulting from the convection-driven mechanism have been observed to cause degradation in the coil heat transfer performance at significantly faster rates than those formations associated with the diffusion-driven mechanism.
Experimental evidence also suggests a larger defrost energy penalty in the case of accumulations associated with suspended ice crystals.
This lecture reports on results of a multiyear investigation at the Wayne K. and Lyla L. Masur HVAC Laboratory at the University of Florida of industrial freezer performance under ice foggy conditions.
The lecture is supported by video and still images of formations of the types described above as well as of iced-up coils during defrosting.
We wanted to determine the relationship between those formations and the prevailing freezer conditions.
We also wanted to search for a demarcation line between snow-like formations and the more traditional formations and to correlate the findings with those predicted using psychrometric theory.
We have developed new psychrometric charts that can be used for supersaturated moist air at freezer temperatures. The new body of data generated from this study should help the refrigeration engineer and the industrial freezer operator to avoid ice foggy freezer operation and thus reduce the frequency, duration, and energy penalty of the defrost cycle.

Prof. Dr. S.A. Sherif, USA

Professor of Mechanical and Aerospace Engineering
Director Industrial Assessment Center
Director Wayne K. and Lyla L. Masur HVAC Laboratory
University of Florida
232 MAE-B Building, P.O. Box 116300
Gainesville, FL 32611-6300, USA

Dr. S.A. Sherif is a tenured Professor of Mechanical and Aerospace Engineering and is the Founding Director of the Wayne K. and Lyla L. Masur HVAC Laboratory and the Director of the Industrial Assessment Center.

He served as Co-Director of the Southeastern Center for Industrial Energy Intensity Reduction at the University of Florida (2009-2013).

He is a Fellow of ASME, a Fellow of ASHRAE, an Associate Fellow of AIAA, a Member of Commission B-1 on Thermodynamics and Transfer Processes of the International Institute of Refrigeration, a Member of the Advisory Board of Directors of the International Association for Hydrogen Energy, and a NASA Faculty Fellow. He served as the 2013-2014 Chair of the ASME Heat Transfer Division Executive Committee (2009-2016) and a member of the ASME’s Basic Engineering Group Operating Board (2010-2014).

He is also a past chair for the ASME Advanced Energy Systems Division, the K-19 Committee on Environmental Heat Transfer of the ASME Heat Transfer Division (2003-2007), the Coordinating Group on Fluid Measurements (1992-1994) and the Fluid Applications and Systems Technical Committee (2008-2010) of the ASME Fluids Engineering Division.

He also served as a past chair of the Steering Committee of the Intersociety Energy Conversion Engineering Conference (2001-2003), ASHRAE’s Standards Project Committee 41.6 on Measurement of Moist Air Properties (1989-1994), and ASHRAE’s TC1.1 Committee on Thermodynamics and Psychrometrics (2012-2013).

He also served as a member of the ASME’s Energy Resources Board (2001-2003) and was the Board’s representative to the ASME’s International Mechanical Engineering Congress Committee (2003-2006).

He was the Head of the Refrigeration Section of ASHRAE (2004-2008), the Technical Conference Chair of the 2008 ASME Summer Heat Transfer Conference, a member of the ASME Frank Kreith Energy Award Selection Committee (2005-2011), and the General Conference Chair of the 2013 ASME Summer Heat Transfer Conference.

He is Technical Editor of the ASME Journal of Thermal Science and Engineering Applications (2014-2019), a Subject Editor of Solar Energy (2004-present), and a Subject Editor Emeritus of the International Journal of Hydrogen Energy (2011-present).

He is a past Associate Technical Editor of the ASME Journal of Heat Transfer (7/2007-7/2011) and the ASME Journal of Thermal Science and Engineering Applications (2011-2014). He is also a past Subject Editor of the International Journal of Hydrogen Energy (5/2005-12/2010).

He is a member of the Editorial Boards of 22 thermal science journals.

He is the recipient of the E.K. Campbell Award of Merit from ASHRAE in 1997 for “outstanding service and achievement in teaching” and a “TIP” teaching award from the University of Florida in 1998.

He is the recipient of the 2001 Kuwait Prize in Applied Sciences, a Heat Transfer Division 75th Anniversary Medal (2013), an ASHRAE Distinguished Service Award (2003), an ASHRAE Exceptional Service Award (2010), two Best Paper Awards, one from AIAA (2005) and another from ASME (2005), and numerous certificates of appreciation from ASME, AIAA, ASHRAE, and NASA.

In 2007, he received a Superior Accomplishment Award from the University of Florida and in 2008 was elected as an ASHRAE Distinguished Lecturer.

Dr. Sherif has over 400 refereed publications and two US patents and is the primary editor of the CRC/Taylor & Francis Handbook of Hydrogen Energy.

5- Computational Models for Hydrodynamics and Kinetics of Minerals Flotation Machines- A Review

Prof. Dr. Saad Ragab, USA

Engineering Science and Mechanics Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA

Direct and large eddy simulations of turbulence, hydrodynamic stability and transition, computational fluid dynamics, aerodynamics, gas dynamics and heat transfer, naval hydrodynamics, free-surface flow, hydrodynamic design using CFD, and optimization techniques.

1979: Ph.D.,Engineering Mechanics, Virginia Polytechnic Institute and State University
1974: M.S., Aeronautical Engineering, University of Cairo, Egypt
1970: B.S., Aeronautical Engineering, University of Cairo, Egypt

6- Computational Mechanics with Meshless Methods

The structure of a novel meshless solution procedure for calculation of solid and fluid mechanics problems, coupled with the electromagnetic fields, is presented.
The multiphysics solution framework is coupled to multiple scales by incorporating the cellular automata and the phase-field concepts of microstructure evolution.
The solution procedure is defined on a set of nodes which can be non-uniformly distributed.
The domain and boundary of interest are divided into overlapping influence areas.
On each of them, the fields are represented by the collocation with radial basis functions or by least squares approximation on a related sub-set of nodes present in the influence area.
In the case of cellular automata modelling, the transition rules are defined for the states of the set of nodes in the influence area.
The timestepping is performed in an explicit way.
All governing equations are solved in their strong form, i.e no integrations are performed.
The polygonisation is not present.
The large deformation and growth problems are handled by node redistribution and activation of additional nodes, respectively.
The solution procedure can be easily and efficiently adapted in node redistribution and/or refinement sense, which is of utmost importance when coping with fields exhibiting sharp gradients such as phase field variable or enthaply in phase-change problems.
Step by step benchmarking of the method is represented, followed by some large scale industrial examples such as the grain structure formation in continuous casting of steel, turbulence modelling with solidification, electromagnetic casting of aluminium alloys, etc.
The results of the new approach are compared with the analytical solutions, well documented bench-mark solutions and commercial packages.
The method is extremly simple to code and accurate, allowing straightforward parallelization.
Besides this, the inclusion of complicated physics can be performed in a straightforward manner, reducing the developement time.
The coding in 2D or 3D is almost identical.
Applications to several large scale industrial problems are shown, particularly in the field of thermomechanical processing of steel and aluminum alloys. A selection of related representative references of the team is given.

Prof. Dr. Božidar Šarler

  • Full Professor of Fluid Dynamics and Thermodynamics and Scientific Councilor Dr. Božidar Šarler conferred B.Sc. in physics from University of Ljubljana (1981) and Ph.D. in engineering from University of Maribor (1990). He is primarily employed at the Faculty of Mechanical Engineering, University of Ljubljana where he leads Laboratory for Fluid Dynamics and Thermodynamics, and complementary at the Institute of Metals and Technology in Ljubljana where he leads Laboratory for Simulation of Materials and Processes, in total 20 researchers. He was previously employed at the University of Nova Gorica, and at the Jožef Stefan Institute.
  • He worked abroad cumulative for more than four years as a researcher in Centre of Nuclear Studies, France; University Erlangen-Nürenberg, Germany; Argonne National Laboratories, USA and as a visiting professor or scientist at the University of Nevada, USA; University Pierre and Marie Curie, France; University of Central Florida, USA; Polish Academy of Sciences, Poland and City University of Hong Kong. He gave lectures as a visiting professor at University of Parthenope, Naples, Italy in 2014 and 2018. He is since 2011 Adjunct Professor of Computational Engineering and Science research Centre of the University of Southern Queensland in Australia, and since 2013 of Taiyuan University of Technology, Shanxi Province, China.

  • His research interest is focused on computational modelling of materials and processes, development of numerical methods and physical models for multiphase systems, modelling, simulation, verification and optimization of continuous casting aluminium alloys and steel. His research team is internationally recognised for development of meshless numerical methods for solids and fluids as well as multiscale and multiphysics modelling of solidification. His work is closely connected with Slovenian and global metallurgical industry.
  • He published over 150 SCI papers, over 15 book chapters, and edited 8 books with selected papers from international conferences, h>25. He contributed to more than 250 technical reports. He presented keynotes at conferences of the prestigious type like EUROMAT, EUROSIM (EU), THERMACOMP (UK), ICCES (USA), TMS (USA) and Asian Congress on Computational Mechanics (Singapore).
  • He has managed several international projects within COST, COPERNIKUS, EU frameworks, NATO, National Academies USA, Research Grants Council of Hong Kong, Chinese Academy of Sciences, Laoing province, China, Helmholtz Association, Germany, etc. He has organized numerous special sections on international conferences and he edited special numbers of journals Engineering Analysis with Boundary Elements, Advances in Materials Science and Engineering, and International Journal of Numerical Methods in Heat & Fluid Flow.
  • He organized 12 international conferences in Slovenia and abroad. He was representative of Slovenia in projects COST-P3, COST-512, COST-526 and is representative of Slovenia in EU ESFRI Energy Working Group. Since 2018 he is a member of Eurotherm Committee (http://www.eurothermcommittee.eu/). He was active in working group which launched an integrated Eureka cluster Metallurgy Europe (2014-2020). He is engaged in numerous commissions of Slovenian Grant Agency and related ministries, including Council for Engineering at the present. He is serving in review committees of numerous grant agencies.

  • He received the following awards and recognitions: 2016 highest Slovenian state award for science Žiga Zois for Development and application of meshless methods, 2014 Emerald Literati Best Paper Award, 2014 Distinguished Fellow of ICCES recognition, 2014 prestigious Chinese award for foreign professors “Hundred Talents Plan”, 2009 Emerald Literati Highly Commended Author Award, 2007 Primorska prize for technology transfer, 2006 highest Slovenian state award for technology Janez Puh for Modelling of materials and processes, 1998 Recognition of University of Ljubljana for Outstanding basic and applied research, best paper awards at 11 international conferences.

  • He serves in editorial boards of several distinguished international journals and book series and served in scientific committees of more than 60 international conferences.

  • He has supervised more than 30 bachelor thesis, 8 master thesis and 12 Ph.D.'s. His encouraging of young researchers to topmost research work reflects in the fact that two of his students received best Ph.D. award (ECCOMAS) for Central Europe; one student received Best Ph.D. in the World (HFF) award in 2014; one Ph.D. student received Jožef Stefan golden emblem award for best Ph.D. in Slovenia, etc.

  • He is since 1991 leading one applied and one basic project for Slovenian Grant Agency. For completed projects he received best marks in all evaluation criteria. He established and leads Program Group P2-0379 Modelling and Simulation of Materials and Processes since 2009 and has taken over Program Group P2-0162 Transient two-phase flows. He has been with his coworkers already two-times selected as a group with best research results in Engineering in Slovenia for achievements in multiscale modelling of materials (steel and aluminium) and aerodynamics (topmost ultralight planes). The later achievements were also internationally awarded.
  • Prof. Šarler started research on the influence of magnetohydrodynamics on the solidification of metallic alloys in 2013. The goal of this research is development of new technologies for casting of aluminium alloys and steel for use in the products of highest price rank. The project is of exceptional importance for Slovenian aluminium and steel industry. The project is closely related to the basic project, where meshless multiscale and multiphysics capabilities for use in simulation of these new technologies were developed. Prof. Šarler is since 2014 leading a project, financed by Helmholtz Association, Germany for design of high-pressure micro nozzles. He is also responsible for development of simulation system of Xiwang Special Steel Company continuous caster in China and collaborates with global steel producing equipment companies.
  • The new materials, new processing routes and new design, where Prof. Šarler participates with his projects, found application in word leading products of companies such as Ferrarri, Rolls-Royce, Mercedes, Pipistrel, etc., and in world leading new technologies like femtosecond crystallography.