Dr. Yasser Safa

Dr. Yasser Safa
ZHAW
School of Engineering
Forschungsschwerpunkt Multiphysics Modeling and Imaging
Technikumstrasse 71
8400 Winterthur
Arbeit an der ZHAW
Tätigkeit an der ZHAW
Senior Research, Project Leader
Institute for Computational Physics
home.zhaw.ch/~safa
Aus- und Weiterbildung
Arbeits- und Forschungsschwerpunkte, Spezialkenntnisse
Airborne Wind Energy Research, Structural Mechanics Analysis and Design, Multi-Physics Modelling, Thermodynamic of Phase Changes, Fuel Cell Technology.
Beruflicher Werdegang
⌘ Since 07/2009 Senior Scientist
ZHAW, Zurich University of Applied Sciences, Winterthur, Switzerland.
Topics: Multi-physics modelling, Airborne wind energy, Solid and fracture mechanics,
⌘ 2008 Research Associate
ZHAW, ICP
Tasks: Numerical code developer
⌘ 2006 - 07/2008 Postdoctoral Researcher
Geneva University.
Topics: Thermodynamics of Phase Equilibrium at Cryogenic Temperature, Helium and Hydrogen Applications
⌘ (06 - 09)/2006 Academic Guest
Institute of Computational Science (IcoS), ETHZ, Swiss Federal Institute of Technology, Zürich.
Topics: Reaction-diffusion Problem With Concentration Driven Deformation, Simulation Methods Using Particles, Parallel Computing
⌘ 2001 – 2006 Research Assistant
EPFL, Swiss Federal Institute of Technology, Lausanne
Topics: Development of Alumnium Reduction Cells Technology: Structural Mechanics, Thermal, Hydrodynamics and Electromagnetics, Numerical Code Implementation, Teaching of Numerical Analysis
Aus- und Fortbildung
⌘ 2005 PhD ès. Sciences Techniques
The Section of Mathematics at EPFL, The Swiss Federal Institute of Technology, Lausanne,
Thesis: Numerical Simulation of Thermal and Magnetohydrodynamic Phenomena in Hall-Héroult Cells
A joint development project with Rrio Tinto Alcan,
⌘ 2000 DEA (Master of Advanced Study in Modelling and Intensive Computing)
Partnership: INRIA Rennes France, Univeristy of Reims France, Lebanese University and EPFL Lausanne
Thesis: Optimization of Electrical Current Lines in The Cathode Collector Bar of Aluminum Electrolysis Cell
In collaboration between EPFL and Rrio Tinto Alcan,
⌘ 1998 Civil Engineer Degree
Lebanese University
Thesis: Computational Study on the Underground Nuclear Wast Storage.
A research project in collaboration with Ecole de Mines of Nancy, Polytechnic Institute of Lorraine, France,
Mitglied in Netzwerken
- The Swiss Federal Institute of Technology Lausanne, EPFL
- 2006-2008, Geneva University
- The Swiss Federal Institute of Technology, Zürich ETHZ
- Until 2006, Collaboration with Rrio Tinto Alcan
- Since 2008 Collaboration with Hexis
- 2008-2010 Collaboration with The Paul Scherrer Institute, PSI Electrochemistry Laboratory
Projekte
- Novel approaches for investigating local corrosion and mechanical degradation of multiphasic alloys (LoCoMecha) / ProjektleiterIn / Projekt laufend
- Designing smart wave guides and phononic cloaks using metamaterials / ProjektleiterIn / Projekt abgeschlossen
- Innovative rotor design of a new airborne wind power system / ProjektleiterIn / Projekt abgeschlossen
- Nonlinear Thermo-Mechanics of Surface Growth for Additive Manufacturing Applications / ProjektleiterIn / Projekt abgeschlossen
- Windenergie kinderleicht / ProjektleiterIn / Projekt abgeschlossen
- A computational framework for simulation of dynamic delamination in composite blades and wings / ProjektleiterIn / Projekt abgeschlossen
- Design-Spaces zur Entwicklung von Sensor- und Aktorsystemen sowie Komponenten mit erhöhter Robustheit bezüglich Herstellung und Lebensdauer / ProjektleiterIn / Projekt abgeschlossen
- Developing a Rotor Model of a Novel Lighter-Than-Air System of a Wind Power Turbine / ProjektleiterIn / Projekt abgeschlossen
- Testing a new method for characterization and optimization of the adhesion strength of ceramic and metallic coatings / ProjektleiterIn / Projekt abgeschlossen
Publikationen
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Yavari, Arash; Safa, Yasser; Soleiman Fallah, Arash,
2023.
Finite extension of accreting nonlinear elastic solid circular cylinders.
Continuum Mechanics and Thermodynamics.
Verfügbar unter: https://doi.org/10.1007/s00161-023-01208-w
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Soleiman Fallah, Arash; Giannakeas, Ilias N.; Mella, Rizgar; Wenman, Mark R.; Safa, Yasser; Bahai, Hamid,
2020.
On the computational derivation of bond-based peridynamic stress tensor.
Journal of Peridynamics and Nonlocal Modeling.
Verfügbar unter: https://doi.org/10.1007/s42102-020-00036-9
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Fallah, Arash; Ghajari, Mazdak; Safa, Yasser,
2019.
Computational modelling of dynamic delamination in morphing composite blades and wings.
The International Journal of Multiphysics.
13(4), S. 393-430.
Verfügbar unter: https://doi.org/10.21152/1750-9548.13.4.393
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Safa, Yasser; Hocker, Thomas,
2015.
A validated energy approach for the post-buckling design of micro-fabricated thin film devices.
Applied Mathematical Modelling.
39(2), S. 483-499.
Verfügbar unter: https://doi.org/10.1016/j.apm.2014.05.038
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Safa, Yasser; Hocker, Thomas; Prestat, Michel; Evans, Anna,
2014.
Post-buckling design of thin-film electrolytes in micro-solid oxide fuel cells.
Journal of Power Sources.
250, S. 332-342.
Verfügbar unter: https://doi.org/10.1016/j.jpowsour.2013.10.125
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Evans, Anna; Prestat, Michel; Tölke, R.; Schlupp, M. V. F.; Gauckler, L. J.; Safa, Yasser; Hocker, Thomas; Courbat, J.; Briand, D.; de Rooij, N. F.; Courty, D.,
2012.
Fuel Cells.
12(4), S. 614-623.
Verfügbar unter: https://doi.org/10.1002/fuce.201200028
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Safa, Yasser; Flueck, M.; Rappaz, J.,
2009.
Numerical simulation of thermal problems coupled with magnetohydrodynamic effects in aluminium cell.
Applied Mathematical Modelling.
33(3), S. 1479-1492.
Verfügbar unter: https://doi.org/10.1016/j.apm.2008.02.011
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Safa, Yasser; Pfenniger, Daniel,
2008.
Equation of state and stability of the helium-hydrogen mixture at cryogenic temperature.
The European Physical Journal B.
66(3), S. 337-352.
Verfügbar unter: https://doi.org/10.1140/epjb/e2008-00438-8
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Safa, Yasser,
2005.
Lausanne:
École polytechnique fédérale de Lausanne.
Verfügbar unter: https://doi.org/10.5075/epfl-thesis-3185
-
Safa, Yasser,
2011.
Helium thermodynamics, analytical model
.
In:
Helium : characteristics, compounds, and applications.
New York:
Nova Science Publishers.
S. 191-208.
-
Alaboz, Hakan; Kovacs, Andras; Safa, Yasser; Mescheder, Ulrich,
2022.
In:
MikroSystemTechnik Kongress 2021 : Mikroelektronik / Mikrosystemtechnik und ihre Anwendungen Innovative Produkte für zukunftsfähige Märkte.
MikroSystemTechnik Kongress, Ludwigsburg, Deutschland, 8.-10. November 2021.
Berlin:
VDE.
S. 738-741.
Verfügbar unter: https://doi.org/10.21256/zhaw-27639
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Rappaz, J.; Flueck, M.; Safa, Yasser,
2006.
Influence of thermo-hydraulic fields on structural mechanics of aluminum reduction cells [Paper].
In:
Light Metals 2006 : proceedings of the technical sessions presented by the TMS Aluminum Committee at the 135th TMS Annual Meeting, San Antonio, Texas, USA, March 12-16, 2006.
135th TMS Annual Meeting and Exhibition, San Antonio, USA, 12-16 March 2006.
TMS - The Minerals, Metals & Materials Society.
S. 433-438.
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Safa, Yasser,
2005.
Determination and influence of the ledge shape on electrical potential and fluid motion in a smelter [Paper].
In:
Light metals 2005 : proceedings of the technical sessions presend by the TMS Aluminum Committee at the 134th TMS Annual Meeting, San Francisco, California, February 13-17, 2005.
134th Annual Meeting & Exhibition (TMS 2005), San Francisco, USA, 13-17 February 2005.
TMS - The Minerals, Metals & Materials Society.
S. 461-468.
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Evans, Anna; Prestat, Michel; Tölke, René; Gauckler, Ludwig J.; Hocker, Thomas; Safa, Yasser; Briand, Danick; Courbat, Jérôme; De Rooij, Nico,
2012.
In:
Mogensen, M. B.; Armstrong, T.; Gür, T. M.; Yokokawa, H.; Zhou, X.-D., Hrsg.,
Ionic and mixed conducting ceramics.
221st ECS Meeting, Seattle, Washington, 6-10 May 2012.
Pennington:
The Electrochemical Society.
S. 475-479.
ECS Transactions ; 45, 1.
Verfügbar unter: https://doi.org/10.1149/1.3701338
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Safa, Yasser; Hocker, Thomas,
2009.
Numerical simulation of reactive transport phenomena in the hexis SOFC-system [Paper].
In:
Singhal, S. C.; Yokokawa, H., Hrsg.,
Solid Oxide Fuel Cells 11 (SOFC-XI).
11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI), Vienna, Austria, 4-9 October 2009.
Pennington:
S. 1221-1230.
ECS Transactions ; 25, 2.
Verfügbar unter: https://doi.org/10.1149/1.3205651
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Safa, Yasser,
2005.
Numerical simulations of thermo-magneto-hydrodynamic phenomena [Paper].
In:
Numerical Swiss Colloquium, Zürich, 24 March 2005.
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Safa, Yasser; Hocker, Thomas,
2016.
Developed numerical approach of the melt-crystals phase-changing kinetics in solidification process.
In:
11th International Conference of Multiphysics, Winterthur, 8-9 December 2016.
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Hocker, Thomas; Safa, Yasser; Meier, Daniel Christoph,
2016.
Kontrolliertes Kühlen von Kakaobutter und Modellierung der Kristallisation von Kakaobutter.
In:
Choco Tec 2016 - der Schokoladenkongress des Jahres, Köln, Deutschland, 6-8 December 2016.
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Safa, Yasser,
2015.
In:
Meeting Day of Swiss Chocolate Industry "AK-Schoko Treffen", Zurich, 2015.
-
Safa, Yasser,
2014.
A new phase mixture approach for the gas-liquid flow in shale reservoir.
In:
2nd International Symposium on Energy Challenges and Mechanics (ECM2) Aberdeen, UK, 19-21 August 2014.
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Safa, Yasser; Hocker, Thomas,
2012.
A validated model of membrane mechanics for micro SOFC.
In:
9th Symposium on Fuel Cell and Battery Modeling and Experimental Validation (ModVal 9), Sursee, 2.-4. April 2012.
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Prestat, Michel René; Evans, A.; Tölke, R.; Schlupp, M. V. F.; Scherrer, B.; Yáng, Z.; Martynczuk, J.; Pecho, Omar; Ma, H.; Laffranchini, S.; Bieberle-Hütter, A.; Gauckler, L. J.; Safa, Yasser; Hocker, Thomas; Muralt, P.; Yan, Y.; Courbat, J.; Briand, D.; de Rooij, N. F.,
2012.
Miniaturized free-standing SOFC membranes on silicon chips (A0704).
In:
10th European SOFC Forum 2012, Lucerne, Switzerland, 26–29 June 2012.
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Safa, Yasser; Hocker, Thomas,
2011.
In:
8th Symposium on Fuel Cell Modeling and Experimental Validation (ModVal8), Bonn, Germany, 8-9 March 2011.
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Hocker, Thomas; Niffenegger, M.; Safa, Yasser; Chahine, E.,
2011.
Buckling-driven crack growth in elastic plate devices.
In:
21. Symposium Simulationstechnik (ASIM 2011), Winterthur, Schweiz, 7.–9. September 2011.
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Safa, Yasser,
2011.
Mathematica implementation of new simulation codes for challenging industrial applications.
In:
XIII. Berliner Mathematica-Tag, Berlin, Deutschland, 2. Dezember 2011.
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Schumacher, Jürgen; Safa, Yasser,
2010.
Modeling two-phase flow in the gas diffusion layer of a proton exchange membrane fuel cell.
In:
7th Symposium on Fuel Cell Modeling and Experimental Validation, Morges, 23-24 March 2010.
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Safa, Yasser; Schumacher, Jürgen O.,
2009.
Numerical modeling of the two-phase transport in a PEM fuel cell.
In:
Proceedings of the Third European Fuel Cell Technology & Applications Conference : presented at 3rd European Fuel Cell Technology and Applications Conference, December 15 - 18, 2009, Rome, Italy.
European Fuel Cell Technology & Applications Piero Lunghi Conference (EFC2009), Rome, Italy, 15-18 December 2009.
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Schumacher, Jürgen; Safa, Yasser,
2009.
Numerical simulation of transport phenomena in PEM fuel cells.
In:
Algoritmy 2009 - Conference on Scientific Computing, Podbanske, Slovakia, 15-20 March 2009.
Slovak University of Technology, Bratislava.
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Safa, Yasser,
2005.
Cuve de hall-héroult en thermomagnétohydrodynamique.
In:
Le 2ème Congrès National de Mathématiques Appliquées et Industrielles, Evian, France, 23-27 May 2005.
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Safa, Yasser,
2004.
Thermal calculations of reduction cells coupled with magnetohydrodynamic effect.
In:
Workshop in Numerical Simulations for Aluminum Industry, Lausanne, 2004.
Patente und Patentanmeldungen
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Safa, Yasser,
2019.
Appareil aéroporté pour la production d'énergie éolienne.
Patentnummer CH715129 A2
(2019-12-30)
.
Verfügbar unter: https://worldwide.espacenet.com/patent/search?q=pn%3DCH715129A2
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Safa, Yasser,
2018.
Appareil aéroporté pour la production d’énergie éolienne à haute altitude.
Patentnummer CH713455 A2
(2018-08-15)
.
Verfügbar unter: https://worldwide.espacenet.com/patent/search?q=pn%3DCH713455A2
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Safa, Yasser,
2017.
Appareil pour la production d’énergie éolienne grâce aux courants d’air en haute altitude.
Patentnummer CH712386 A1
(2017-10-31)
.
Verfügbar unter: https://worldwide.espacenet.com/patent/search?q=pn%3DCH712386A1